Duhaime, A C
Response Journal Article
In: Journal of Neurosurgery, vol. 117, no. 6, pp. 1090–1091, 2012, ISBN: 0022-3085 1933-0693.
BibTeX | Tags: Accident prevention, Assessment & Testing, athlete, Biomechanics, brain concussion, Equipment, headache, Helmets, human, Neck pain, neurosurgery, Note, Post-Concussion, priority journal, sport injury, surgeon, symptom, Syndrome, traumatic brain injury, unconsciousness
@article{Duhaime2012,
title = {Response},
author = {Duhaime, A C},
isbn = {0022-3085
1933-0693},
year = {2012},
date = {2012-01-01},
journal = {Journal of Neurosurgery},
volume = {117},
number = {6},
pages = {1090--1091},
keywords = {Accident prevention, Assessment \& Testing, athlete, Biomechanics, brain concussion, Equipment, headache, Helmets, human, Neck pain, neurosurgery, Note, Post-Concussion, priority journal, sport injury, surgeon, symptom, Syndrome, traumatic brain injury, unconsciousness},
pubstate = {published},
tppubtype = {article}
}
Foley, Cassidy M; Wang, David H
Central diabetes insipidus following a sports-related concussion: a case report Journal Article
In: Sports & Health, vol. 4, pp. 139–141, 2012.
Abstract | BibTeX | Tags: Post-Concussion
@article{Foley2012,
title = {Central diabetes insipidus following a sports-related concussion: a case report},
author = {Foley, Cassidy M and Wang, David H},
year = {2012},
date = {2012-01-01},
journal = {Sports \& Health},
volume = {4},
pages = {139--141},
address = {Connecticut Children's Medical Center, Farmington, Connecticut.},
abstract = {A 24-year-old female swimmer presented to a sports medicine clinic with complaints of frequent urination and increased thirst. The patient admitted to progressive worsening of her symptoms over a 4-year period since suffering a concussion. A water deprivation test, antidiuretic hormone level, and diamino-8-D-arginine vasopressin challenge were completed, and the patient was diagnosed with persistent central diabetes insipidus. As concussion awareness increases, health care professionals will be faced with treatment of post-concussive patients more often. The aim of this case report is to increase awareness of possible pituitary dysfunction-specifically, central diabetes insipidus-following a concussion.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
King, Nigel S; Kirwilliam, Simon
Permanent post-concussion symptoms after mild head injury Journal Article
In: Brain Injury, vol. 25, pp. 462–470, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{King2011,
title = {Permanent post-concussion symptoms after mild head injury},
author = {King, Nigel S and Kirwilliam, Simon},
year = {2011},
date = {2011-01-01},
journal = {Brain Injury},
volume = {25},
pages = {462--470},
address = {Community Head Injury Service, The Camborne Centre, Aylesbury, Bucks, UK. nigel.king@hmc.ox.ac.uk},
abstract = {OBJECTIVE: A small minority of individuals experience long-term or permanent post-concussion symptoms (PCS) after a mild head injury (MHI). There has been no systematic, quantitative research examining a wide range of variables in a representative sample of such patients (i.e. with PCS for more than 18 months). This study explores a broad spectrum of demographic, cognitive, emotional and psychosocial factors (known to be important in the development of early PCS) in a representative sample of patients with permanent PCS. METHOD: One hundred consecutively referred patients to a Community Head Injury Service in Buckinghamshire, UK for the treatment of persistent PCS, at least 18 months post-MHI, were identified and invited to participate. An exploratory design evaluated a range of demographic, cognitive, emotional and psychosocial variables and their relationship to PCS severity and quality-of-life (QoL). RESULTS: Twenty-four participants, with a mean time post-injury of 6.9 years, responded. They were characterized by: (i) older age compared to those typically presenting with MHI, (ii) very high levels of PCS, (iii) high post-injury unemployment, (iv) pre- or post-morbid factors which might exacerbate post-concussional difficulties, (v) elevated levels of anxiety and depression and (vi) mildly reduced scores on tests of short-term memory and speed of information processing. Post-hoc analysis of the total sample (n[THIN SPACE]=[THIN SPACE]100) confirmed older age and a high proportion having pre- or post-morbid factors. QoL negatively correlated with PCS severity, and anxiety scores accounted for 45.9% of the variance in PCS severity. CONCLUSIONS: Very high levels of PCS, high post-injury unemployment and measurable cognitive deficits can be permanent features of MHI. Quality-of-life is directly related to symptom severity. Age, pre-/post-morbid concomitant factors, neuropsychological deficits and emotional status are key variables in understanding the phenomenon of permanent PCS. Important vulnerability factors in the development of such may therefore be older age and any additional compromise to an individual's emotional or cognitive capacities.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Catena, Robert D; van Donkelaar, Paul; Chou, Li-Shan
The effects of attention capacity on dynamic balance control following concussion Journal Article
In: Journal of Neuroengineering & Rehabilitation, vol. 8, pp. 8, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{Catena2011,
title = {The effects of attention capacity on dynamic balance control following concussion},
author = {Catena, Robert D and van Donkelaar, Paul and Chou, Li-Shan},
year = {2011},
date = {2011-01-01},
journal = {Journal of Neuroengineering \& Rehabilitation},
volume = {8},
pages = {8},
address = {Motion Analysis Laboratory, Department of Human Physiology, University of Oregon, Eugene, Oregon 97403, USA.},
abstract = {The purpose of this study was to examine how individuals modulate attention in a gait/cognition dual task during a 4-week period following a concussion. Ten individuals suffering from a grade 2 concussion and 10 matched controls performed a single task of level walking, a seated auditory Stroop task and a simultaneous auditory Stroop and walking task. Reaction time and accuracy were measured from the Stroop task. Dynamic balance control during gait was measured by the interaction (displacement and velocity) between the center of mass (CoM) and center of pressure (CoP) in the coronal and sagittal planes. Concussed individuals shifted from conservative control of balance (shorter separation between CoM and CoP) immediately after injury to normal balance control over 28 days post-injury. Immediately after injury, correlations analyses using each subject on each testing day as a data point showed that there was a spectrum of deficient performance among concussed individuals on the first testing day. Within a testing session, deficiencies in reaction time of processing involved in the Stroop task were commonly seen with reduce dynamic balance control. However, the prioritization was not always towards the same task between trials. There were no correlations in the control group. Information provided in this study would enhance our understanding of the interaction between attention and gait following concussion.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Andersson, Elisabeth Elgmark; Bedics, Beate Karrdahl; Falkmer, Torbjorn
Mild traumatic brain injuries: a 10-year follow-up Journal Article
In: Journal of Rehabilitation Medicine, vol. 43, pp. 323–329, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{Andersson2011,
title = {Mild traumatic brain injuries: a 10-year follow-up},
author = {Andersson, Elisabeth Elgmark and Bedics, Beate Karrdahl and Falkmer, Torbjorn},
year = {2011},
date = {2011-01-01},
journal = {Journal of Rehabilitation Medicine},
volume = {43},
pages = {323--329},
address = {School of Health Sciences, Department of Rehabilitation, Jonkoping University, Jonkoping, Sweden. Elisabeth.Elgmark@hhj.hj.se},
abstract = {OBJECTIVE AND DESIGN: Long-term consequences of mild traumatic brain injuries were investigated based on a 10-year follow-up of patients from a previously-published randomized controlled study of mild traumatic brain injuries. One aim was to describe changes over time after mild traumatic brain injuries in terms of the extent of persisting post-concussion symptoms, life satisfaction, perceived health, activities of daily living, changes in life roles and sick leave. Another aim was to identify differences between the intervention and control groups. PATIENTS: The intervention group comprised 142 persons and the control group 56 persons. METHODS: Postal questionnaires with a response rate of 56%. RESULTS: No differences over time were found for the intervention and control groups in terms of post-concussion symptoms. In the intervention group some variables in life satisfaction, perceived health and daily life were decreased. Some roles had changed over the years for both groups. No other differences between the intervention and control groups were found. However, in both groups sick leave decreased. CONCLUSION: Early individual intervention by a qualified rehabilitation team does not appear to impact on the long-term outcome for persons with symptoms related to mild traumatic brain injuries. The status after approximately 3 weeks is indicative of the status after 10 years.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Turgeon, Christine; Champoux, Francois; Lepore, Franco; Leclerc, Suzanne; Ellemberg, Dave
Auditory processing after sport-related concussions Journal Article
In: Ear & Hearing, vol. 32, pp. 667–670, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{Turgeon2011,
title = {Auditory processing after sport-related concussions},
author = {Turgeon, Christine and Champoux, Francois and Lepore, Franco and Leclerc, Suzanne and Ellemberg, Dave},
year = {2011},
date = {2011-01-01},
journal = {Ear \& Hearing},
volume = {32},
pages = {667--670},
address = {1Centre de Recherche en Neuropsychologie et Cognition, Universite de Montreal; 2Centre de recherche interdisciplinaire en readaptation du Montreal metropolitain, Institut Raymond-Dewar; and 3Departement de Kinesiologie, Universite de Montreal, Montreal, Q},
abstract = {OBJECTIVE: : The aim of the study is to investigate whether sport-related concussions disrupt auditory processes. DESIGN: : Sixteen university athletes participated in the study: eight had one or more sport-related concussions, and eight never experienced a concussion. The Frequency Pattern Sequence test, the Duration Pattern Sequence test, the Synthetic Sentence Identification test, and the Staggered Spondaic Word test were used to assess auditory processing. RESULTS: : All nonconcussed athletes have normal auditory processing. In contrast, more than half of the concussed athletes had deficits for one or more of the auditory processing tests. CONCLUSIONS: : The pattern of results suggests that sport-related concussions can disrupt the neurological mechanisms implicated in several auditory processes, including monaural low-redundancy speech recognition, tone pattern recognition, and dichotic listening.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Iverson, Grant L
Mild traumatic brain injury meta-analyses can obscure individual differences Journal Article
In: Brain Injury, vol. 24, pp. 1246–1255, 2010.
Abstract | BibTeX | Tags: Post-Concussion
@article{Iverson2010c,
title = {Mild traumatic brain injury meta-analyses can obscure individual differences},
author = {Iverson, Grant L},
year = {2010},
date = {2010-01-01},
journal = {Brain Injury},
volume = {24},
pages = {1246--1255},
address = {Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada. giverson@interchange.ubc.ca},
abstract = {PRIMARY OBJECTIVE: Several published meta-analyses indicate that mild traumatic brain injury (MTBI) is associated with a favourable course of recovery over a period of days-to-weeks, with no indication of permanent impairment on neuropsychological testing by 3 months post-injury in group studies. These meta-analyses provide important but not definitive information relating to outcome from MTBI in individual patients. The purpose of this paper was to illustrate that a sub-group of patients with residual cognitive deficits could exist, yet be obscured using group inferential statistics. MAIN OUTCOME AND RESULTS: A sample of 30 concussed amateur athletes and a hypothetical sample of 30 adults who had sustained MTBIs were used to illustrate these statistical issues. In both groups, a minority of subjects with residual cognitive deficits were not identified using group statistics. CONCLUSIONS: It is important to appreciate that MTBI meta-analyses represent an aggregation of effect sizes derived from multiple groups across multiple studies. Therefore, this methodology could, theoretically, obscure small sub-group or individual effects. Implications for interpreting meta-analyses are discussed.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Comper, Paul; Hutchison, Michael; Magrys, Sylvia; Mainwaring, Lynda; Richards, Doug
Evaluating the methodological quality of sports neuropsychology concussion research: a systematic review Journal Article
In: Brain Injury, vol. 24, pp. 1257–1271, 2010.
Abstract | BibTeX | Tags: Post-Concussion
@article{Comper2010,
title = {Evaluating the methodological quality of sports neuropsychology concussion research: a systematic review},
author = {Comper, Paul and Hutchison, Michael and Magrys, Sylvia and Mainwaring, Lynda and Richards, Doug},
year = {2010},
date = {2010-01-01},
journal = {Brain Injury},
volume = {24},
pages = {1257--1271},
address = {Toronto Rehabilitation Institute, Toronto, ON, Canada. comper.paul@torontorehab.on.ca},
abstract = {Primary objective: Sports-related concussion is a frequently-occurring, serious neurological event that can produce a spectrum of potentially debilitating primary and secondary problems. Many investigators-particularly neuropsychologists-have focused their efforts on identifying cognitive changes that accompany such injuries. As such, the present review evaluated the methodological quality of neuropsychological sports-related concussion research using a comprehensive, systematic method. Research design: Of 349 studies initially selected by search criteria, a total of 43 studies were evaluated using a Cochrane-style review format. Research methods: Studies were assigned a Level of Evidence using the Centre for Evidence-based Medicine (CEMB) framework. Relevant information related to the methods of each study were extracted and rated for methodological quality using a standardized form-based evaluation tool. Results: The review revealed heterogeneity among the studies in terms of research design, as well as a number of methodological weaknesses and inconsistencies. Conclusion: Despite the proliferation of neuropsychological research on sports-related concussion over the past decade, the methodological quality of studies appears to be highly variable, with many lacking proper scientific rigour. Future research in this area needs to be carefully controlled, repeatable and generalizable, which will contribute to developing practical, evidence-based guidelines for concussion management.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Sveen, Unni; Bautz-Holter, Erik; Sandvik, Leiv; Alvsaker, Kristin; Roe, Cecilie
Relationship between competency in activities, injury severity, and post-concussion symptoms after traumatic brain injury Journal Article
In: Scandinavian Journal of Occupational Therapy, vol. 17, pp. 225–232, 2010.
Abstract | BibTeX | Tags: Post-Concussion
@article{Sveen2010,
title = {Relationship between competency in activities, injury severity, and post-concussion symptoms after traumatic brain injury},
author = {Sveen, Unni and Bautz-Holter, Erik and Sandvik, Leiv and Alvsaker, Kristin and Roe, Cecilie},
year = {2010},
date = {2010-01-01},
journal = {Scandinavian Journal of Occupational Therapy},
volume = {17},
pages = {225--232},
address = {Department of Physical Medicine and Rehabilitation, Oslo University Hospital, Ulleval, Oslo, Norway. unni.sveen@uus.no},
abstract = {OBJECTIVE: To determine to what extent injury severity and post-concussion symptoms after 3 months predict ability in activities 12 months after traumatic brain injury (TBI) and assess the frequency of problems in daily activities. METHODS: A one-year cohort of 63 persons with mild to severe TBI was assessed on admission, after three and 12 months. Injury severity was assessed using the Glasgow Coma Scale, Abbreviated Injury Scale for the head and Injury Severity Score. Post-concussion symptoms were reported using the Rivermead Post Concussion Symptoms Questionnaire after three months. The Patient Competency Rating Scale (PCRS), a self-rating scale of ability in activities, was applied 12 months post-injury. The PCRS consists of the domains interpersonal/emotional and cognitive competency, and instrumental ADL. Multiple backward regression models were performed with the three subscales of PCRS as dependent variables. RESULTS: Activity problems at 12 months were related to perceived cognitive and interpersonal/emotional competency. Post-concussion symptoms reported at three-month follow-up were main predictors of cognitive and interpersonal/emotional competency at 12 months. Injury severity predicted only cognitive competency. CONCLUSION: Symptoms evolving after the trauma seem to be the strongest predictor of perceived ability in activities in this population. This underlines the need for follow-up after TBI to identify persons at risk of developing long-term activity limitations.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Stovner, L J; Schrader, H; Mickeviciene, D; Surkiene, D; Sand, T
Headache after concussion Journal Article
In: European Journal of Neurology, vol. 16, pp. 112–120, 2009.
Abstract | BibTeX | Tags: Post-Concussion
@article{Stovner2009,
title = {Headache after concussion},
author = {Stovner, L J and Schrader, H and Mickeviciene, D and Surkiene, D and Sand, T},
year = {2009},
date = {2009-01-01},
journal = {European Journal of Neurology},
volume = {16},
pages = {112--120},
address = {Norwegian National Headache Centre, Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway. lars.stovner@ntnu.no},
abstract = {BACKGROUND AND PURPOSE: Chronic post-traumatic headache attributed to mild head injury is a somewhat disputed headache diagnosis. A main object of this study was to assess the validity of this diagnosis by studying the headache pattern of concussed patients that participated in one historic (n = 131) and one prospective cohort (n = 217) study. METHODS: Head injury patients were recruited from two hospitals in Kaunas, Lithuania. Controls were recruited amongst patients with minor orthopaedic traumas not involving the head and neck. RESULTS: When data from the two studies were pooled, no difference in any headache category (diagnosis, attack frequency, symptoms) was found one or more years after the trauma, except that photophobia was somewhat more prevalent amongst the concussed patients. In both injury groups, the existence of pre-traumatic headache was a predictor of post-traumatic headache, although pre-traumatic headache seems to have been underreported amongst the concussed patients. There was a significant negative correlation between the duration of unconsciousness and the headache. CONCLUSIONS: This negative correlation, and the lack of specificity indicates that headache occurring 3 months or more after concussion is not caused by the head or brain injury. Rather it may represent an episode of one of the primary headaches, possibly induced by the stress of the situation.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Bryant, Richard A
Disentangling mild traumatic brain injury and stress reactions Book
2008.
BibTeX | Tags: Post-Concussion
@book{Bryant2008,
title = {Disentangling mild traumatic brain injury and stress reactions},
author = {Bryant, Richard A},
year = {2008},
date = {2008-01-01},
booktitle = {New England Journal of Medicine},
volume = {358},
pages = {525--527},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {book}
}
Kashluba, Shauna; Paniak, Chris; Casey, Joseph E
Persistent symptoms associated with factors identified by the WHO Task Force on Mild Traumatic Brain Injury Journal Article
In: Clinical Neuropsychologist, vol. 22, pp. 195–208, 2008.
Abstract | BibTeX | Tags: Post-Concussion
@article{Kashluba2008a,
title = {Persistent symptoms associated with factors identified by the WHO Task Force on Mild Traumatic Brain Injury},
author = {Kashluba, Shauna and Paniak, Chris and Casey, Joseph E},
year = {2008},
date = {2008-01-01},
journal = {Clinical Neuropsychologist},
volume = {22},
pages = {195--208},
address = {'Department of Psychology, University of Windsor, Windsor, Ontario, Canada.},
abstract = {The current study examined the role of factors identified by the World Health Organization's Task Force on Mild Traumatic Brain Injury as being associated with poor outcome after mild traumatic brain injury. Employing symptom severity ratings at 3 months post-injury greater than "mild," subgroups of Higher-Severity (20%) and Lower-Severity (80%) participants were identified. Findings revealed that individuals who report greater symptom complaints at 3 months post-MTBI may be identifiable soon after injury on the basis of the magnitude and severity of early self-reported symptoms, pre-morbid psychological issues, and involvement in compensation-seeking. Injury severity factors did not differ between the groups.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Iverson, G L; Echemendia, R J; Brooks, B L
Lingering effects of concussion in athletes with multiple injuries Journal Article
In: Archives of Clinical Neuropsychology, vol. 22, pp. 897–898, 2007, ISSN: 0887-6177.
BibTeX | Tags: Post-Concussion
@article{Iverson2007,
title = {Lingering effects of concussion in athletes with multiple injuries},
author = {Iverson, G L and Echemendia, R J and Brooks, B L},
issn = {0887-6177},
year = {2007},
date = {2007-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {22},
pages = {897--898},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Solomon, Gary S
A comment on "exertion" after sports-related concussion Journal Article
In: Journal of Neuropsychiatry & Clinical Neurosciences, vol. 19, pp. 195–196, 2007.
BibTeX | Tags: Post-Concussion
@article{Solomon2007,
title = {A comment on "exertion" after sports-related concussion},
author = {Solomon, Gary S},
year = {2007},
date = {2007-01-01},
journal = {Journal of Neuropsychiatry \& Clinical Neurosciences},
volume = {19},
pages = {195--196},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Kongsted, A; Jorgensen, L V; Bendix, T; Korsholm, L; Leboeuf-Yde, C
Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study Journal Article
In: Clinical Rehabilitation, vol. 21, pp. 1038–1049, 2007.
Abstract | Links | BibTeX | Tags: Post-Concussion
@article{Kongsted2007,
title = {Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study},
author = {Kongsted, A and Jorgensen, L V and Bendix, T and Korsholm, L and Leboeuf-Yde, C},
doi = {10.1177/0269215507075519},
year = {2007},
date = {2007-01-01},
journal = {Clinical Rehabilitation},
volume = {21},
pages = {1038--1049},
abstract = {Objective: To evaluate whether smooth pursuit eye movements differed between patients with long-lasting whiplash-associated disorders and controls when using a purely computerized method for the eye movement analysis. Design: Cross-sectional study comparing patients with whiplash-associated disorders and controls who had not been exposed to head or neck trauma and had no notable neck complaints. Methods: Smooth pursuit eye movements were registered while the subjects were seated with and without rotated cervical spine. Subjects: Thirty-four patients with whiplash-associated disorders with symptoms more than six months after a car collision and 60 controls. Results: Smooth pursuit eye movements were almost identical in patients with chronic whiplash-associated disorders and controls, both when the neck was rotated and in the neutral position. Conclusion: Disturbed smooth pursuit eye movements do not appear to be a distinct feature in patients with chronic whiplash-associated disorders. This is in contrast to results of previous studies and may be due to the fact that analyses were performed in a computerized and objective manner. Other possible reasons for the discrepancy to previous studies are discussed.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Collie, A; McCrory, P; Makdissi, M
Does history of concussion affect current cognitive status?[see comment]. Journal Article
In: British Journal of Sports Medicine, vol. 40, pp. 550–551, 2006.
Abstract | BibTeX | Tags: Post-Concussion
@article{Collie2006a,
title = {Does history of concussion affect current cognitive status?[see comment].},
author = {Collie, A and McCrory, P and Makdissi, M},
year = {2006},
date = {2006-01-01},
journal = {British Journal of Sports Medicine},
volume = {40},
pages = {550--551},
abstract = {The association between self reported history of concussion and current neurocognitive status is controversial. Some football studies suggest that athletes with a history of concussion display cognitive impairment relative to athletes with no history of concussion, but other studies have not been able to reproduce such findings. This study shows that there is no relation between the number of previous self reported episodes of concussion and current cognitive state, directly contradicting the findings of previous research.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Lee, S M; Kelly, D F; Cantu, R C
Temporal window of vulnerability to repetitive experimental concussive brain injury - Comments Journal Article
In: Neurosurgery, vol. 56, pp. 373–374, 2005, ISSN: 0148-396X.
BibTeX | Tags: Post-Concussion
@article{Lee2005,
title = {Temporal window of vulnerability to repetitive experimental concussive brain injury - Comments},
author = {Lee, S M and Kelly, D F and Cantu, R C},
issn = {0148-396X},
year = {2005},
date = {2005-01-01},
journal = {Neurosurgery},
volume = {56},
pages = {373--374},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Belanger, Heather G; Curtiss, Glenn; Demery, Jason A; Lebowitz, Brian K; Vanderploeg, Rodney D
Factors moderating neuropsychological outcomes following mild traumatic brain injury: a meta-analysis Journal Article
In: Journal of the International Neuropsychological Society, vol. 11, pp. 215–227, 2005.
Abstract | BibTeX | Tags: Post-Concussion
@article{Belanger2005,
title = {Factors moderating neuropsychological outcomes following mild traumatic brain injury: a meta-analysis},
author = {Belanger, Heather G and Curtiss, Glenn and Demery, Jason A and Lebowitz, Brian K and Vanderploeg, Rodney D},
year = {2005},
date = {2005-01-01},
journal = {Journal of the International Neuropsychological Society},
volume = {11},
pages = {215--227},
address = {James A. Haley Veterans' Hospital, Tampa, Florida 33612, USA. Heather.Belanger@med.va.gov},
abstract = {There continues to be debate about the long-term neuropsychological impact of mild traumatic brain injury (MTBI). A meta-analysis of the relevant literature was conducted to determine the impact of MTBI across nine cognitive domains. The analysis was based on 39 studies involving 1463 cases of MTBI and 1191 control cases. The overall effect of MTBI on neuropsychological functioning was moderate (d = .54). However, findings were moderated by cognitive domain, time since injury, patient characteristics, and sampling methods. Acute effects (less than 3 months postinjury) of MTBI were greatest for delayed memory and fluency (d = 1.03 and .89, respectively). In unselected or prospective samples, the overall analysis revealed no residual neuropsychological impairment by 3 months postinjury (d = .04). In contrast, clinic-based samples and samples including participants in litigation were associated with greater cognitive sequelae of MTBI (d = .74 and .78, respectively at 3 months or greater). Indeed, litigation was associated with stable or worsening of cognitive functioning over time. The implications and limitations of these findings are discussed.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Gall, B; Parkhouse, W S; Goodman, D
Exercise following a sport induced concussion Journal Article
In: British Journal of Sports Medicine, vol. 38, pp. 773–777, 2004.
Abstract | BibTeX | Tags: Post-Concussion
@article{Gall2004,
title = {Exercise following a sport induced concussion},
author = {Gall, B and Parkhouse, W S and Goodman, D},
year = {2004},
date = {2004-01-01},
journal = {British Journal of Sports Medicine},
volume = {38},
pages = {773--777},
address = {Simon Fraser University, Burnaby, Canada.},
abstract = {OBJECTIVE: To determine if an athlete's capacity to perform exercise is impaired following concussion and whether this would be reflected by an altered heart rate response. METHODS: Of the 14 concussed athletes, nine missed playing time as a direct result of their concussion and five did not. The concussed athletes performed an exercise protocol on a cycle ergometer within 72 hours of being asymptomatic at rest and a second test at 5 days following the previous assessment. Matched controls (n = 14) were tested using the same time line. The exercise protocol consisted of a 2 minute warm up, 10 minute, low-moderate intensity, steady state exercise session, and a high intensity interval protocol. The interval protocol consisted of a 40 second high intensity bout, followed by a 40 second rest period. This protocol continued until the participant had reached volitional fatigue. RESULTS: The number of exercise bouts completed was not significantly different from their matched controls. However, concussed athletes who missed playing time had a significantly higher heart rate during the steady state exercise session. During this same period, they also exhibited a greater rise in heart rate over time. CONCLUSION: These findings indicate that exercise capacity is unaffected in concussed athletes who are asymptomatic at rest. However, their heart rate response to submaximal exercise is increased.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Cantu, R C; Kelly, D F; Maroon, J C; Balles, J E
Duration of cognitive impairment after sports concussion - Comments Journal Article
In: Neurosurgery, vol. 54, pp. 1078–1080, 2004, ISSN: 0148-396X.
BibTeX | Tags: Post-Concussion
@article{Cantu2004,
title = {Duration of cognitive impairment after sports concussion - Comments},
author = {Cantu, R C and Kelly, D F and Maroon, J C and Balles, J E},
issn = {0148-396X},
year = {2004},
date = {2004-01-01},
journal = {Neurosurgery},
volume = {54},
pages = {1078--1080},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Marshall, L F; Bailes, J E; McCleary, C A; Cantu, R C
Immediate neurocognitive effects of concussion - Comments Journal Article
In: Neurosurgery, vol. 50, pp. 1040–1042, 2002, ISSN: 0148-396X.
BibTeX | Tags: Post-Concussion
@article{Marshall2002a,
title = {Immediate neurocognitive effects of concussion - Comments},
author = {Marshall, L F and Bailes, J E and McCleary, C A and Cantu, R C},
issn = {0148-396X},
year = {2002},
date = {2002-01-01},
journal = {Neurosurgery},
volume = {50},
pages = {1040--1042},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Dorovskikh, I V; Shcheglov, A. Yu; Lyubin, A G
Computer processing of data on mental impairments during the acute period of concussion Journal Article
In: Computational Mathematics and Modeling, vol. 13, pp. 201–207, 2002.
Abstract | BibTeX | Tags: Post-Concussion
@article{Dorovskikh2002,
title = {Computer processing of data on mental impairments during the acute period of concussion },
author = {Dorovskikh, I V and Shcheglov, A.Yu and Lyubin, A G},
year = {2002},
date = {2002-01-01},
journal = {Computational Mathematics and Modeling},
volume = {13},
pages = {201--207},
abstract = {The article presents results of computer processing of experimental information obtained from patients during the acute period of concussion. A number of computational procedures are described.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Ferrari, R
Survey on the postconcussion and whiplash syndromes Journal Article
In: Headache, vol. 41, pp. 913–914, 2001.
BibTeX | Tags: Post-Concussion
@article{Ferrari2001,
title = {Survey on the postconcussion and whiplash syndromes},
author = {Ferrari, R},
year = {2001},
date = {2001-01-01},
journal = {Headache},
volume = {41},
pages = {913--914},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Mittenberg, W; Strauman, S
Diagnosis of mild head injury and the postconcussion syndrome Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 15, pp. 783–791, 2000.
Abstract | BibTeX | Tags: Post-Concussion
@article{Mittenberg2000,
title = {Diagnosis of mild head injury and the postconcussion syndrome},
author = {Mittenberg, W and Strauman, S},
year = {2000},
date = {2000-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {15},
pages = {783--791},
address = {Nova Southeastern University, Ft. Lauderdale, FL 33314, USA.},
abstract = {Mild head injuries can cause acute transient cognitive inefficiency that typically resolves within 3 months. Postconcussion syndrome may initially be related to acute cerebral dysfunction but can also arise as a psychological consequence of head trauma. The syndrome persists beyond 3 months in a significant number of patients with mild head trauma as a psychological disorder. International Classification of Diseases diagnostic criteria for postconcussion syndrome are currently recommended for clinical purposes. These criteria are contrasted with research diagnostic criteria used in the Diagnostic and Statistical Manual of Mental Disorders. The differential diagnosis of persistent cognitive and postconcussive symptoms in forensic practice is reviewed. [References: 42]},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
McCrory, P R; Berkovic, S F
Concussive convulsions. Incidence in sport and treatment recommendations Journal Article
In: Sports Medicine, vol. 25, pp. 131–136, 1998.
Abstract | BibTeX | Tags: Post-Concussion
@article{McCrory1998,
title = {Concussive convulsions. Incidence in sport and treatment recommendations},
author = {McCrory, P R and Berkovic, S F},
year = {1998},
date = {1998-01-01},
journal = {Sports Medicine},
volume = {25},
pages = {131--136},
address = {Department of Medicine (Neurology), University of Melbourne, Heidelberg, Australia. pmccrory@compuserve.com},
abstract = {Concussive convulsions (CC) are nonepileptic phenomena which are an immediate sequelae of concussive brain injury. Although uncommon, occurring with an approximate incidence of 1 case per 70 concussions, these episodes are often confused with post-traumatic epilepsy which may occur with more severe structural brain injury. The pathophysiological mechanism of CC remains speculative, but may involve a transient traumatic functional decerebration with loss of cortical inhibition and release of brainstem activity. The phenomenology of the CC is somewhat akin to convulsive syncope, with an initial tonic phase occurring within 2 seconds of impact, followed by a clonic or myoclonic phase which may last several minutes. Lateralising features are common during the convulsions. There is no evidence of structural or permanent brain injury on clinical assessment, neuropsychological testing or neuroimaging studies. Long term outcome is universally good with no evidence of long term epilepsy and athletes are usually able to return to sport within 2 weeks. The correct management of these episodes centres on the appropriate management of the associated concussive injury and the exclusion of other cerebral injury by medical assessment. The CC requires no specific management beyond immediate onfield first aid measures such as protection of the airway. Antiepileptic therapy is not indicated and prolonged absence from sport is unwarranted. These episodes, although dramatic, are relatively straightforward to manage and all team physicians and those involved in athlete care need to be aware of this condition. [References: 37]},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Gasquoine, P G
Postconcussion symptoms Journal Article
In: Neuropsychology Review, vol. 7, pp. 77–85, 1997.
Abstract | BibTeX | Tags: Post-Concussion
@article{Gasquoine1997,
title = {Postconcussion symptoms},
author = {Gasquoine, P G},
year = {1997},
date = {1997-01-01},
journal = {Neuropsychology Review},
volume = {7},
pages = {77--85},
address = {South Texas Neuropsychology, Corpus Christi 78411, USA.},
abstract = {Research pertaining to the self-report of symptoms after traumatic brain injury was reviewed. Cognitive, emotional, and motivational factors have more relevance than demographic (except for female sex) and personality factors. Specific neuropsychological deficits in attention and memory have been found in the early stages after head injury of even mild severity. This is unlikely to be the only factor affecting symptom persistence. Exaggeration of cognitive dysfunction occurs in some cases, but appears unrelated to symptom overreport. Increased emotional distress typically accompanies symptom persistence. The psychological reaction of preoccupation with symptoms and emotional distress is not unique to concussion, but also occurs after severe head injury and back injury and relates more to the personal interpretation of the effect of the trauma than to objective indicators of brain injury severity. [References: 75]},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Teasdale, T W; Engberg, A
Duration of cognitive dysfunction after concussion, and cognitive dysfunction as a risk factor: a population study of young men Journal Article
In: BMJ, vol. 315, pp. 569–572, 1997.
BibTeX | Tags: Post-Concussion
@article{Teasdale1997a,
title = {Duration of cognitive dysfunction after concussion, and cognitive dysfunction as a risk factor: a population study of young men},
author = {Teasdale, T W and Engberg, A},
year = {1997},
date = {1997-01-01},
journal = {BMJ},
volume = {315},
pages = {569--572},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Young, W B; Silberstein, S D
Post-concussion syndrome Journal Article
In: Neurology, vol. 46, pp. 1488, 1996.
BibTeX | Tags: Post-Concussion
@article{Young1996,
title = {Post-concussion syndrome},
author = {Young, W B and Silberstein, S D},
year = {1996},
date = {1996-01-01},
journal = {Neurology},
volume = {46},
pages = {1488},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Cremona-Meteyard, S L; Geffen, G M
Persistent visuospatial attention deficits following mild head injury in Australian Rules football players.[Erratum appears in Neuropsychologia 1995 May;33(5):659] Journal Article
In: Neuropsychologia, vol. 32, pp. 649–662, 1994.
Abstract | BibTeX | Tags: Post-Concussion
@article{Cremona-Meteyard1994,
title = {Persistent visuospatial attention deficits following mild head injury in Australian Rules football players.[Erratum appears in Neuropsychologia 1995 May;33(5):659]},
author = {Cremona-Meteyard, S L and Geffen, G M},
year = {1994},
date = {1994-01-01},
journal = {Neuropsychologia},
volume = {32},
pages = {649--662},
address = {Department of Psychology, University of Queensland, Brisbane, Australia.},
abstract = {The ability to direct visuospatial attention covertly was studied in two groups of Australian Rules football players who had sustained mild head injuries (MHI) during competition. Their performance was compared to 12 non-injured sportsmen using a cued reaction time (RT) task which measured the RT benefit of valid directional cueing and the RT cost of miscueing. In Experiment 1, nine footballers tested within 2 weeks of sustaining their injury showed the same cost as normals in speed of response to targets in the unexpected visual field. However, their responses to targets in the expected location (following valid cues) showed only a minor benefit compared to controls. Moderate to severely injured patients also show a normal cost but a reduced or absent benefit (Cremona-Meteyard and Geffen, Neuropsychologia 30, 123-132, 1992). When subjects were retested 1 year later their pattern of performance had not altered but overall RT had improved. Experiment 2 replicated these findings in another eight footballers tested at least 1 year after sustaining their MHI. A persistent consequence of MHI might be an inability to take action quickly in response to expected events.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Mittenberg, W; DiGiulio, D V; Perrin, S; Bass, A E
Symptoms following mild head injury: expectation as aetiology Journal Article
In: Journal of Neurology, Neurosurgery & Psychiatry, vol. 55, pp. 200–204, 1992.
Abstract | BibTeX | Tags: Post-Concussion
@article{Mittenberg1992,
title = {Symptoms following mild head injury: expectation as aetiology},
author = {Mittenberg, W and DiGiulio, D V and Perrin, S and Bass, A E},
year = {1992},
date = {1992-01-01},
journal = {Journal of Neurology, Neurosurgery \& Psychiatry},
volume = {55},
pages = {200--204},
address = {Nova University School of Psychology, Fort Lauderdale, Florida 33314.},
abstract = {An affective, somatic, and memory check-list of symptoms was administered to subjects who had no personal experience or knowledge of head injury. Subjects indicated their current experiences of symptoms, then imagined having sustained a mild head injury in a motor vehicle accident, and endorsed symptoms they expected to experience six months after the injury. The checklist of symptoms was also administered to a group of patients with head injuries for comparison. Imaginary concussion reliably showed expectations in controls of a coherent cluster of symptoms virtually identical to the postconcussion syndrome reported by patients with head trauma. Patients consistently underestimated the premorbid prevalence of these symptoms compared with the base rate in controls. Symptom expectations appear to share as much variance with postconcussion syndrome as head injury itself. An aetiological role is suggested.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Barth, J T; Macciocchi, S N; Giordani, B; Rimel, R; Jane, J A; Boll, T J
Neuropsychological sequelae of minor head injury Journal Article
In: Neurosurgery, vol. 13, pp. 529–533, 1983.
Abstract | BibTeX | Tags: Post-Concussion
@article{Barth1983,
title = {Neuropsychological sequelae of minor head injury},
author = {Barth, J T and Macciocchi, S N and Giordani, B and Rimel, R and Jane, J A and Boll, T J},
year = {1983},
date = {1983-01-01},
journal = {Neurosurgery},
volume = {13},
pages = {529--533},
abstract = {Seventy-one patients with minor head injury were given extensive neuropsychological evaluations 3 months after injury. A significant percentage of the patients demonstrated cognitive impairment, which seemed essentially unrelated to the length of unconsciousness or of posttraumatic amnesia. Impaired patients evidenced memory and visuospatial deficits. Cognitively impaired patients also had difficulty returning to work after injury. The psychological and cognitive impairment that follows minor head injury is discussed in relation to diagnostic and intervention issues.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Ewing, R; McCarthy, D; Gronwall, D M A; Wrightson, P
Persisting effects of concussion shown by impaired performance at altitude Journal Article
In: Journal of Clinical Neuropsychology, vol. 2, pp. 147–155, 1981.
BibTeX | Tags: Post-Concussion
@article{Ewing1981,
title = {Persisting effects of concussion shown by impaired performance at altitude},
author = {Ewing, R and McCarthy, D and Gronwall, D M A and Wrightson, P},
year = {1981},
date = {1981-01-01},
journal = {Journal of Clinical Neuropsychology},
volume = {2},
pages = {147--155},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Duhaime, A C
Response Journal Article
In: Journal of Neurosurgery, vol. 117, no. 6, pp. 1090–1091, 2012, ISBN: 0022-3085 1933-0693.
@article{Duhaime2012,
title = {Response},
author = {Duhaime, A C},
isbn = {0022-3085
1933-0693},
year = {2012},
date = {2012-01-01},
journal = {Journal of Neurosurgery},
volume = {117},
number = {6},
pages = {1090--1091},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Foley, Cassidy M; Wang, David H
Central diabetes insipidus following a sports-related concussion: a case report Journal Article
In: Sports & Health, vol. 4, pp. 139–141, 2012.
@article{Foley2012,
title = {Central diabetes insipidus following a sports-related concussion: a case report},
author = {Foley, Cassidy M and Wang, David H},
year = {2012},
date = {2012-01-01},
journal = {Sports \& Health},
volume = {4},
pages = {139--141},
address = {Connecticut Children's Medical Center, Farmington, Connecticut.},
abstract = {A 24-year-old female swimmer presented to a sports medicine clinic with complaints of frequent urination and increased thirst. The patient admitted to progressive worsening of her symptoms over a 4-year period since suffering a concussion. A water deprivation test, antidiuretic hormone level, and diamino-8-D-arginine vasopressin challenge were completed, and the patient was diagnosed with persistent central diabetes insipidus. As concussion awareness increases, health care professionals will be faced with treatment of post-concussive patients more often. The aim of this case report is to increase awareness of possible pituitary dysfunction-specifically, central diabetes insipidus-following a concussion.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
King, Nigel S; Kirwilliam, Simon
Permanent post-concussion symptoms after mild head injury Journal Article
In: Brain Injury, vol. 25, pp. 462–470, 2011.
@article{King2011,
title = {Permanent post-concussion symptoms after mild head injury},
author = {King, Nigel S and Kirwilliam, Simon},
year = {2011},
date = {2011-01-01},
journal = {Brain Injury},
volume = {25},
pages = {462--470},
address = {Community Head Injury Service, The Camborne Centre, Aylesbury, Bucks, UK. nigel.king@hmc.ox.ac.uk},
abstract = {OBJECTIVE: A small minority of individuals experience long-term or permanent post-concussion symptoms (PCS) after a mild head injury (MHI). There has been no systematic, quantitative research examining a wide range of variables in a representative sample of such patients (i.e. with PCS for more than 18 months). This study explores a broad spectrum of demographic, cognitive, emotional and psychosocial factors (known to be important in the development of early PCS) in a representative sample of patients with permanent PCS. METHOD: One hundred consecutively referred patients to a Community Head Injury Service in Buckinghamshire, UK for the treatment of persistent PCS, at least 18 months post-MHI, were identified and invited to participate. An exploratory design evaluated a range of demographic, cognitive, emotional and psychosocial variables and their relationship to PCS severity and quality-of-life (QoL). RESULTS: Twenty-four participants, with a mean time post-injury of 6.9 years, responded. They were characterized by: (i) older age compared to those typically presenting with MHI, (ii) very high levels of PCS, (iii) high post-injury unemployment, (iv) pre- or post-morbid factors which might exacerbate post-concussional difficulties, (v) elevated levels of anxiety and depression and (vi) mildly reduced scores on tests of short-term memory and speed of information processing. Post-hoc analysis of the total sample (n[THIN SPACE]=[THIN SPACE]100) confirmed older age and a high proportion having pre- or post-morbid factors. QoL negatively correlated with PCS severity, and anxiety scores accounted for 45.9% of the variance in PCS severity. CONCLUSIONS: Very high levels of PCS, high post-injury unemployment and measurable cognitive deficits can be permanent features of MHI. Quality-of-life is directly related to symptom severity. Age, pre-/post-morbid concomitant factors, neuropsychological deficits and emotional status are key variables in understanding the phenomenon of permanent PCS. Important vulnerability factors in the development of such may therefore be older age and any additional compromise to an individual's emotional or cognitive capacities.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Catena, Robert D; van Donkelaar, Paul; Chou, Li-Shan
The effects of attention capacity on dynamic balance control following concussion Journal Article
In: Journal of Neuroengineering & Rehabilitation, vol. 8, pp. 8, 2011.
@article{Catena2011,
title = {The effects of attention capacity on dynamic balance control following concussion},
author = {Catena, Robert D and van Donkelaar, Paul and Chou, Li-Shan},
year = {2011},
date = {2011-01-01},
journal = {Journal of Neuroengineering \& Rehabilitation},
volume = {8},
pages = {8},
address = {Motion Analysis Laboratory, Department of Human Physiology, University of Oregon, Eugene, Oregon 97403, USA.},
abstract = {The purpose of this study was to examine how individuals modulate attention in a gait/cognition dual task during a 4-week period following a concussion. Ten individuals suffering from a grade 2 concussion and 10 matched controls performed a single task of level walking, a seated auditory Stroop task and a simultaneous auditory Stroop and walking task. Reaction time and accuracy were measured from the Stroop task. Dynamic balance control during gait was measured by the interaction (displacement and velocity) between the center of mass (CoM) and center of pressure (CoP) in the coronal and sagittal planes. Concussed individuals shifted from conservative control of balance (shorter separation between CoM and CoP) immediately after injury to normal balance control over 28 days post-injury. Immediately after injury, correlations analyses using each subject on each testing day as a data point showed that there was a spectrum of deficient performance among concussed individuals on the first testing day. Within a testing session, deficiencies in reaction time of processing involved in the Stroop task were commonly seen with reduce dynamic balance control. However, the prioritization was not always towards the same task between trials. There were no correlations in the control group. Information provided in this study would enhance our understanding of the interaction between attention and gait following concussion.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Andersson, Elisabeth Elgmark; Bedics, Beate Karrdahl; Falkmer, Torbjorn
Mild traumatic brain injuries: a 10-year follow-up Journal Article
In: Journal of Rehabilitation Medicine, vol. 43, pp. 323–329, 2011.
@article{Andersson2011,
title = {Mild traumatic brain injuries: a 10-year follow-up},
author = {Andersson, Elisabeth Elgmark and Bedics, Beate Karrdahl and Falkmer, Torbjorn},
year = {2011},
date = {2011-01-01},
journal = {Journal of Rehabilitation Medicine},
volume = {43},
pages = {323--329},
address = {School of Health Sciences, Department of Rehabilitation, Jonkoping University, Jonkoping, Sweden. Elisabeth.Elgmark@hhj.hj.se},
abstract = {OBJECTIVE AND DESIGN: Long-term consequences of mild traumatic brain injuries were investigated based on a 10-year follow-up of patients from a previously-published randomized controlled study of mild traumatic brain injuries. One aim was to describe changes over time after mild traumatic brain injuries in terms of the extent of persisting post-concussion symptoms, life satisfaction, perceived health, activities of daily living, changes in life roles and sick leave. Another aim was to identify differences between the intervention and control groups. PATIENTS: The intervention group comprised 142 persons and the control group 56 persons. METHODS: Postal questionnaires with a response rate of 56%. RESULTS: No differences over time were found for the intervention and control groups in terms of post-concussion symptoms. In the intervention group some variables in life satisfaction, perceived health and daily life were decreased. Some roles had changed over the years for both groups. No other differences between the intervention and control groups were found. However, in both groups sick leave decreased. CONCLUSION: Early individual intervention by a qualified rehabilitation team does not appear to impact on the long-term outcome for persons with symptoms related to mild traumatic brain injuries. The status after approximately 3 weeks is indicative of the status after 10 years.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Turgeon, Christine; Champoux, Francois; Lepore, Franco; Leclerc, Suzanne; Ellemberg, Dave
Auditory processing after sport-related concussions Journal Article
In: Ear & Hearing, vol. 32, pp. 667–670, 2011.
@article{Turgeon2011,
title = {Auditory processing after sport-related concussions},
author = {Turgeon, Christine and Champoux, Francois and Lepore, Franco and Leclerc, Suzanne and Ellemberg, Dave},
year = {2011},
date = {2011-01-01},
journal = {Ear \& Hearing},
volume = {32},
pages = {667--670},
address = {1Centre de Recherche en Neuropsychologie et Cognition, Universite de Montreal; 2Centre de recherche interdisciplinaire en readaptation du Montreal metropolitain, Institut Raymond-Dewar; and 3Departement de Kinesiologie, Universite de Montreal, Montreal, Q},
abstract = {OBJECTIVE: : The aim of the study is to investigate whether sport-related concussions disrupt auditory processes. DESIGN: : Sixteen university athletes participated in the study: eight had one or more sport-related concussions, and eight never experienced a concussion. The Frequency Pattern Sequence test, the Duration Pattern Sequence test, the Synthetic Sentence Identification test, and the Staggered Spondaic Word test were used to assess auditory processing. RESULTS: : All nonconcussed athletes have normal auditory processing. In contrast, more than half of the concussed athletes had deficits for one or more of the auditory processing tests. CONCLUSIONS: : The pattern of results suggests that sport-related concussions can disrupt the neurological mechanisms implicated in several auditory processes, including monaural low-redundancy speech recognition, tone pattern recognition, and dichotic listening.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Iverson, Grant L
Mild traumatic brain injury meta-analyses can obscure individual differences Journal Article
In: Brain Injury, vol. 24, pp. 1246–1255, 2010.
@article{Iverson2010c,
title = {Mild traumatic brain injury meta-analyses can obscure individual differences},
author = {Iverson, Grant L},
year = {2010},
date = {2010-01-01},
journal = {Brain Injury},
volume = {24},
pages = {1246--1255},
address = {Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada. giverson@interchange.ubc.ca},
abstract = {PRIMARY OBJECTIVE: Several published meta-analyses indicate that mild traumatic brain injury (MTBI) is associated with a favourable course of recovery over a period of days-to-weeks, with no indication of permanent impairment on neuropsychological testing by 3 months post-injury in group studies. These meta-analyses provide important but not definitive information relating to outcome from MTBI in individual patients. The purpose of this paper was to illustrate that a sub-group of patients with residual cognitive deficits could exist, yet be obscured using group inferential statistics. MAIN OUTCOME AND RESULTS: A sample of 30 concussed amateur athletes and a hypothetical sample of 30 adults who had sustained MTBIs were used to illustrate these statistical issues. In both groups, a minority of subjects with residual cognitive deficits were not identified using group statistics. CONCLUSIONS: It is important to appreciate that MTBI meta-analyses represent an aggregation of effect sizes derived from multiple groups across multiple studies. Therefore, this methodology could, theoretically, obscure small sub-group or individual effects. Implications for interpreting meta-analyses are discussed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Comper, Paul; Hutchison, Michael; Magrys, Sylvia; Mainwaring, Lynda; Richards, Doug
Evaluating the methodological quality of sports neuropsychology concussion research: a systematic review Journal Article
In: Brain Injury, vol. 24, pp. 1257–1271, 2010.
@article{Comper2010,
title = {Evaluating the methodological quality of sports neuropsychology concussion research: a systematic review},
author = {Comper, Paul and Hutchison, Michael and Magrys, Sylvia and Mainwaring, Lynda and Richards, Doug},
year = {2010},
date = {2010-01-01},
journal = {Brain Injury},
volume = {24},
pages = {1257--1271},
address = {Toronto Rehabilitation Institute, Toronto, ON, Canada. comper.paul@torontorehab.on.ca},
abstract = {Primary objective: Sports-related concussion is a frequently-occurring, serious neurological event that can produce a spectrum of potentially debilitating primary and secondary problems. Many investigators-particularly neuropsychologists-have focused their efforts on identifying cognitive changes that accompany such injuries. As such, the present review evaluated the methodological quality of neuropsychological sports-related concussion research using a comprehensive, systematic method. Research design: Of 349 studies initially selected by search criteria, a total of 43 studies were evaluated using a Cochrane-style review format. Research methods: Studies were assigned a Level of Evidence using the Centre for Evidence-based Medicine (CEMB) framework. Relevant information related to the methods of each study were extracted and rated for methodological quality using a standardized form-based evaluation tool. Results: The review revealed heterogeneity among the studies in terms of research design, as well as a number of methodological weaknesses and inconsistencies. Conclusion: Despite the proliferation of neuropsychological research on sports-related concussion over the past decade, the methodological quality of studies appears to be highly variable, with many lacking proper scientific rigour. Future research in this area needs to be carefully controlled, repeatable and generalizable, which will contribute to developing practical, evidence-based guidelines for concussion management.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Sveen, Unni; Bautz-Holter, Erik; Sandvik, Leiv; Alvsaker, Kristin; Roe, Cecilie
Relationship between competency in activities, injury severity, and post-concussion symptoms after traumatic brain injury Journal Article
In: Scandinavian Journal of Occupational Therapy, vol. 17, pp. 225–232, 2010.
@article{Sveen2010,
title = {Relationship between competency in activities, injury severity, and post-concussion symptoms after traumatic brain injury},
author = {Sveen, Unni and Bautz-Holter, Erik and Sandvik, Leiv and Alvsaker, Kristin and Roe, Cecilie},
year = {2010},
date = {2010-01-01},
journal = {Scandinavian Journal of Occupational Therapy},
volume = {17},
pages = {225--232},
address = {Department of Physical Medicine and Rehabilitation, Oslo University Hospital, Ulleval, Oslo, Norway. unni.sveen@uus.no},
abstract = {OBJECTIVE: To determine to what extent injury severity and post-concussion symptoms after 3 months predict ability in activities 12 months after traumatic brain injury (TBI) and assess the frequency of problems in daily activities. METHODS: A one-year cohort of 63 persons with mild to severe TBI was assessed on admission, after three and 12 months. Injury severity was assessed using the Glasgow Coma Scale, Abbreviated Injury Scale for the head and Injury Severity Score. Post-concussion symptoms were reported using the Rivermead Post Concussion Symptoms Questionnaire after three months. The Patient Competency Rating Scale (PCRS), a self-rating scale of ability in activities, was applied 12 months post-injury. The PCRS consists of the domains interpersonal/emotional and cognitive competency, and instrumental ADL. Multiple backward regression models were performed with the three subscales of PCRS as dependent variables. RESULTS: Activity problems at 12 months were related to perceived cognitive and interpersonal/emotional competency. Post-concussion symptoms reported at three-month follow-up were main predictors of cognitive and interpersonal/emotional competency at 12 months. Injury severity predicted only cognitive competency. CONCLUSION: Symptoms evolving after the trauma seem to be the strongest predictor of perceived ability in activities in this population. This underlines the need for follow-up after TBI to identify persons at risk of developing long-term activity limitations.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Stovner, L J; Schrader, H; Mickeviciene, D; Surkiene, D; Sand, T
Headache after concussion Journal Article
In: European Journal of Neurology, vol. 16, pp. 112–120, 2009.
@article{Stovner2009,
title = {Headache after concussion},
author = {Stovner, L J and Schrader, H and Mickeviciene, D and Surkiene, D and Sand, T},
year = {2009},
date = {2009-01-01},
journal = {European Journal of Neurology},
volume = {16},
pages = {112--120},
address = {Norwegian National Headache Centre, Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway. lars.stovner@ntnu.no},
abstract = {BACKGROUND AND PURPOSE: Chronic post-traumatic headache attributed to mild head injury is a somewhat disputed headache diagnosis. A main object of this study was to assess the validity of this diagnosis by studying the headache pattern of concussed patients that participated in one historic (n = 131) and one prospective cohort (n = 217) study. METHODS: Head injury patients were recruited from two hospitals in Kaunas, Lithuania. Controls were recruited amongst patients with minor orthopaedic traumas not involving the head and neck. RESULTS: When data from the two studies were pooled, no difference in any headache category (diagnosis, attack frequency, symptoms) was found one or more years after the trauma, except that photophobia was somewhat more prevalent amongst the concussed patients. In both injury groups, the existence of pre-traumatic headache was a predictor of post-traumatic headache, although pre-traumatic headache seems to have been underreported amongst the concussed patients. There was a significant negative correlation between the duration of unconsciousness and the headache. CONCLUSIONS: This negative correlation, and the lack of specificity indicates that headache occurring 3 months or more after concussion is not caused by the head or brain injury. Rather it may represent an episode of one of the primary headaches, possibly induced by the stress of the situation.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bryant, Richard A
Disentangling mild traumatic brain injury and stress reactions Book
2008.
@book{Bryant2008,
title = {Disentangling mild traumatic brain injury and stress reactions},
author = {Bryant, Richard A},
year = {2008},
date = {2008-01-01},
booktitle = {New England Journal of Medicine},
volume = {358},
pages = {525--527},
keywords = {},
pubstate = {published},
tppubtype = {book}
}
Kashluba, Shauna; Paniak, Chris; Casey, Joseph E
Persistent symptoms associated with factors identified by the WHO Task Force on Mild Traumatic Brain Injury Journal Article
In: Clinical Neuropsychologist, vol. 22, pp. 195–208, 2008.
@article{Kashluba2008a,
title = {Persistent symptoms associated with factors identified by the WHO Task Force on Mild Traumatic Brain Injury},
author = {Kashluba, Shauna and Paniak, Chris and Casey, Joseph E},
year = {2008},
date = {2008-01-01},
journal = {Clinical Neuropsychologist},
volume = {22},
pages = {195--208},
address = {'Department of Psychology, University of Windsor, Windsor, Ontario, Canada.},
abstract = {The current study examined the role of factors identified by the World Health Organization's Task Force on Mild Traumatic Brain Injury as being associated with poor outcome after mild traumatic brain injury. Employing symptom severity ratings at 3 months post-injury greater than "mild," subgroups of Higher-Severity (20%) and Lower-Severity (80%) participants were identified. Findings revealed that individuals who report greater symptom complaints at 3 months post-MTBI may be identifiable soon after injury on the basis of the magnitude and severity of early self-reported symptoms, pre-morbid psychological issues, and involvement in compensation-seeking. Injury severity factors did not differ between the groups.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Iverson, G L; Echemendia, R J; Brooks, B L
Lingering effects of concussion in athletes with multiple injuries Journal Article
In: Archives of Clinical Neuropsychology, vol. 22, pp. 897–898, 2007, ISSN: 0887-6177.
@article{Iverson2007,
title = {Lingering effects of concussion in athletes with multiple injuries},
author = {Iverson, G L and Echemendia, R J and Brooks, B L},
issn = {0887-6177},
year = {2007},
date = {2007-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {22},
pages = {897--898},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Solomon, Gary S
A comment on "exertion" after sports-related concussion Journal Article
In: Journal of Neuropsychiatry & Clinical Neurosciences, vol. 19, pp. 195–196, 2007.
@article{Solomon2007,
title = {A comment on "exertion" after sports-related concussion},
author = {Solomon, Gary S},
year = {2007},
date = {2007-01-01},
journal = {Journal of Neuropsychiatry \& Clinical Neurosciences},
volume = {19},
pages = {195--196},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Kongsted, A; Jorgensen, L V; Bendix, T; Korsholm, L; Leboeuf-Yde, C
Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study Journal Article
In: Clinical Rehabilitation, vol. 21, pp. 1038–1049, 2007.
@article{Kongsted2007,
title = {Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study},
author = {Kongsted, A and Jorgensen, L V and Bendix, T and Korsholm, L and Leboeuf-Yde, C},
doi = {10.1177/0269215507075519},
year = {2007},
date = {2007-01-01},
journal = {Clinical Rehabilitation},
volume = {21},
pages = {1038--1049},
abstract = {Objective: To evaluate whether smooth pursuit eye movements differed between patients with long-lasting whiplash-associated disorders and controls when using a purely computerized method for the eye movement analysis. Design: Cross-sectional study comparing patients with whiplash-associated disorders and controls who had not been exposed to head or neck trauma and had no notable neck complaints. Methods: Smooth pursuit eye movements were registered while the subjects were seated with and without rotated cervical spine. Subjects: Thirty-four patients with whiplash-associated disorders with symptoms more than six months after a car collision and 60 controls. Results: Smooth pursuit eye movements were almost identical in patients with chronic whiplash-associated disorders and controls, both when the neck was rotated and in the neutral position. Conclusion: Disturbed smooth pursuit eye movements do not appear to be a distinct feature in patients with chronic whiplash-associated disorders. This is in contrast to results of previous studies and may be due to the fact that analyses were performed in a computerized and objective manner. Other possible reasons for the discrepancy to previous studies are discussed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Collie, A; McCrory, P; Makdissi, M
Does history of concussion affect current cognitive status?[see comment]. Journal Article
In: British Journal of Sports Medicine, vol. 40, pp. 550–551, 2006.
@article{Collie2006a,
title = {Does history of concussion affect current cognitive status?[see comment].},
author = {Collie, A and McCrory, P and Makdissi, M},
year = {2006},
date = {2006-01-01},
journal = {British Journal of Sports Medicine},
volume = {40},
pages = {550--551},
abstract = {The association between self reported history of concussion and current neurocognitive status is controversial. Some football studies suggest that athletes with a history of concussion display cognitive impairment relative to athletes with no history of concussion, but other studies have not been able to reproduce such findings. This study shows that there is no relation between the number of previous self reported episodes of concussion and current cognitive state, directly contradicting the findings of previous research.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Lee, S M; Kelly, D F; Cantu, R C
Temporal window of vulnerability to repetitive experimental concussive brain injury - Comments Journal Article
In: Neurosurgery, vol. 56, pp. 373–374, 2005, ISSN: 0148-396X.
@article{Lee2005,
title = {Temporal window of vulnerability to repetitive experimental concussive brain injury - Comments},
author = {Lee, S M and Kelly, D F and Cantu, R C},
issn = {0148-396X},
year = {2005},
date = {2005-01-01},
journal = {Neurosurgery},
volume = {56},
pages = {373--374},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Belanger, Heather G; Curtiss, Glenn; Demery, Jason A; Lebowitz, Brian K; Vanderploeg, Rodney D
Factors moderating neuropsychological outcomes following mild traumatic brain injury: a meta-analysis Journal Article
In: Journal of the International Neuropsychological Society, vol. 11, pp. 215–227, 2005.
@article{Belanger2005,
title = {Factors moderating neuropsychological outcomes following mild traumatic brain injury: a meta-analysis},
author = {Belanger, Heather G and Curtiss, Glenn and Demery, Jason A and Lebowitz, Brian K and Vanderploeg, Rodney D},
year = {2005},
date = {2005-01-01},
journal = {Journal of the International Neuropsychological Society},
volume = {11},
pages = {215--227},
address = {James A. Haley Veterans' Hospital, Tampa, Florida 33612, USA. Heather.Belanger@med.va.gov},
abstract = {There continues to be debate about the long-term neuropsychological impact of mild traumatic brain injury (MTBI). A meta-analysis of the relevant literature was conducted to determine the impact of MTBI across nine cognitive domains. The analysis was based on 39 studies involving 1463 cases of MTBI and 1191 control cases. The overall effect of MTBI on neuropsychological functioning was moderate (d = .54). However, findings were moderated by cognitive domain, time since injury, patient characteristics, and sampling methods. Acute effects (less than 3 months postinjury) of MTBI were greatest for delayed memory and fluency (d = 1.03 and .89, respectively). In unselected or prospective samples, the overall analysis revealed no residual neuropsychological impairment by 3 months postinjury (d = .04). In contrast, clinic-based samples and samples including participants in litigation were associated with greater cognitive sequelae of MTBI (d = .74 and .78, respectively at 3 months or greater). Indeed, litigation was associated with stable or worsening of cognitive functioning over time. The implications and limitations of these findings are discussed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gall, B; Parkhouse, W S; Goodman, D
Exercise following a sport induced concussion Journal Article
In: British Journal of Sports Medicine, vol. 38, pp. 773–777, 2004.
@article{Gall2004,
title = {Exercise following a sport induced concussion},
author = {Gall, B and Parkhouse, W S and Goodman, D},
year = {2004},
date = {2004-01-01},
journal = {British Journal of Sports Medicine},
volume = {38},
pages = {773--777},
address = {Simon Fraser University, Burnaby, Canada.},
abstract = {OBJECTIVE: To determine if an athlete's capacity to perform exercise is impaired following concussion and whether this would be reflected by an altered heart rate response. METHODS: Of the 14 concussed athletes, nine missed playing time as a direct result of their concussion and five did not. The concussed athletes performed an exercise protocol on a cycle ergometer within 72 hours of being asymptomatic at rest and a second test at 5 days following the previous assessment. Matched controls (n = 14) were tested using the same time line. The exercise protocol consisted of a 2 minute warm up, 10 minute, low-moderate intensity, steady state exercise session, and a high intensity interval protocol. The interval protocol consisted of a 40 second high intensity bout, followed by a 40 second rest period. This protocol continued until the participant had reached volitional fatigue. RESULTS: The number of exercise bouts completed was not significantly different from their matched controls. However, concussed athletes who missed playing time had a significantly higher heart rate during the steady state exercise session. During this same period, they also exhibited a greater rise in heart rate over time. CONCLUSION: These findings indicate that exercise capacity is unaffected in concussed athletes who are asymptomatic at rest. However, their heart rate response to submaximal exercise is increased.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Cantu, R C; Kelly, D F; Maroon, J C; Balles, J E
Duration of cognitive impairment after sports concussion - Comments Journal Article
In: Neurosurgery, vol. 54, pp. 1078–1080, 2004, ISSN: 0148-396X.
@article{Cantu2004,
title = {Duration of cognitive impairment after sports concussion - Comments},
author = {Cantu, R C and Kelly, D F and Maroon, J C and Balles, J E},
issn = {0148-396X},
year = {2004},
date = {2004-01-01},
journal = {Neurosurgery},
volume = {54},
pages = {1078--1080},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Duhaime, A C
Response Journal Article
In: Journal of Neurosurgery, vol. 117, no. 6, pp. 1090–1091, 2012, ISBN: 0022-3085 1933-0693.
BibTeX | Tags: Accident prevention, Assessment & Testing, athlete, Biomechanics, brain concussion, Equipment, headache, Helmets, human, Neck pain, neurosurgery, Note, Post-Concussion, priority journal, sport injury, surgeon, symptom, Syndrome, traumatic brain injury, unconsciousness
@article{Duhaime2012,
title = {Response},
author = {Duhaime, A C},
isbn = {0022-3085
1933-0693},
year = {2012},
date = {2012-01-01},
journal = {Journal of Neurosurgery},
volume = {117},
number = {6},
pages = {1090--1091},
keywords = {Accident prevention, Assessment \& Testing, athlete, Biomechanics, brain concussion, Equipment, headache, Helmets, human, Neck pain, neurosurgery, Note, Post-Concussion, priority journal, sport injury, surgeon, symptom, Syndrome, traumatic brain injury, unconsciousness},
pubstate = {published},
tppubtype = {article}
}
Foley, Cassidy M; Wang, David H
Central diabetes insipidus following a sports-related concussion: a case report Journal Article
In: Sports & Health, vol. 4, pp. 139–141, 2012.
Abstract | BibTeX | Tags: Post-Concussion
@article{Foley2012,
title = {Central diabetes insipidus following a sports-related concussion: a case report},
author = {Foley, Cassidy M and Wang, David H},
year = {2012},
date = {2012-01-01},
journal = {Sports \& Health},
volume = {4},
pages = {139--141},
address = {Connecticut Children's Medical Center, Farmington, Connecticut.},
abstract = {A 24-year-old female swimmer presented to a sports medicine clinic with complaints of frequent urination and increased thirst. The patient admitted to progressive worsening of her symptoms over a 4-year period since suffering a concussion. A water deprivation test, antidiuretic hormone level, and diamino-8-D-arginine vasopressin challenge were completed, and the patient was diagnosed with persistent central diabetes insipidus. As concussion awareness increases, health care professionals will be faced with treatment of post-concussive patients more often. The aim of this case report is to increase awareness of possible pituitary dysfunction-specifically, central diabetes insipidus-following a concussion.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
King, Nigel S; Kirwilliam, Simon
Permanent post-concussion symptoms after mild head injury Journal Article
In: Brain Injury, vol. 25, pp. 462–470, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{King2011,
title = {Permanent post-concussion symptoms after mild head injury},
author = {King, Nigel S and Kirwilliam, Simon},
year = {2011},
date = {2011-01-01},
journal = {Brain Injury},
volume = {25},
pages = {462--470},
address = {Community Head Injury Service, The Camborne Centre, Aylesbury, Bucks, UK. nigel.king@hmc.ox.ac.uk},
abstract = {OBJECTIVE: A small minority of individuals experience long-term or permanent post-concussion symptoms (PCS) after a mild head injury (MHI). There has been no systematic, quantitative research examining a wide range of variables in a representative sample of such patients (i.e. with PCS for more than 18 months). This study explores a broad spectrum of demographic, cognitive, emotional and psychosocial factors (known to be important in the development of early PCS) in a representative sample of patients with permanent PCS. METHOD: One hundred consecutively referred patients to a Community Head Injury Service in Buckinghamshire, UK for the treatment of persistent PCS, at least 18 months post-MHI, were identified and invited to participate. An exploratory design evaluated a range of demographic, cognitive, emotional and psychosocial variables and their relationship to PCS severity and quality-of-life (QoL). RESULTS: Twenty-four participants, with a mean time post-injury of 6.9 years, responded. They were characterized by: (i) older age compared to those typically presenting with MHI, (ii) very high levels of PCS, (iii) high post-injury unemployment, (iv) pre- or post-morbid factors which might exacerbate post-concussional difficulties, (v) elevated levels of anxiety and depression and (vi) mildly reduced scores on tests of short-term memory and speed of information processing. Post-hoc analysis of the total sample (n[THIN SPACE]=[THIN SPACE]100) confirmed older age and a high proportion having pre- or post-morbid factors. QoL negatively correlated with PCS severity, and anxiety scores accounted for 45.9% of the variance in PCS severity. CONCLUSIONS: Very high levels of PCS, high post-injury unemployment and measurable cognitive deficits can be permanent features of MHI. Quality-of-life is directly related to symptom severity. Age, pre-/post-morbid concomitant factors, neuropsychological deficits and emotional status are key variables in understanding the phenomenon of permanent PCS. Important vulnerability factors in the development of such may therefore be older age and any additional compromise to an individual's emotional or cognitive capacities.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Catena, Robert D; van Donkelaar, Paul; Chou, Li-Shan
The effects of attention capacity on dynamic balance control following concussion Journal Article
In: Journal of Neuroengineering & Rehabilitation, vol. 8, pp. 8, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{Catena2011,
title = {The effects of attention capacity on dynamic balance control following concussion},
author = {Catena, Robert D and van Donkelaar, Paul and Chou, Li-Shan},
year = {2011},
date = {2011-01-01},
journal = {Journal of Neuroengineering \& Rehabilitation},
volume = {8},
pages = {8},
address = {Motion Analysis Laboratory, Department of Human Physiology, University of Oregon, Eugene, Oregon 97403, USA.},
abstract = {The purpose of this study was to examine how individuals modulate attention in a gait/cognition dual task during a 4-week period following a concussion. Ten individuals suffering from a grade 2 concussion and 10 matched controls performed a single task of level walking, a seated auditory Stroop task and a simultaneous auditory Stroop and walking task. Reaction time and accuracy were measured from the Stroop task. Dynamic balance control during gait was measured by the interaction (displacement and velocity) between the center of mass (CoM) and center of pressure (CoP) in the coronal and sagittal planes. Concussed individuals shifted from conservative control of balance (shorter separation between CoM and CoP) immediately after injury to normal balance control over 28 days post-injury. Immediately after injury, correlations analyses using each subject on each testing day as a data point showed that there was a spectrum of deficient performance among concussed individuals on the first testing day. Within a testing session, deficiencies in reaction time of processing involved in the Stroop task were commonly seen with reduce dynamic balance control. However, the prioritization was not always towards the same task between trials. There were no correlations in the control group. Information provided in this study would enhance our understanding of the interaction between attention and gait following concussion.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Andersson, Elisabeth Elgmark; Bedics, Beate Karrdahl; Falkmer, Torbjorn
Mild traumatic brain injuries: a 10-year follow-up Journal Article
In: Journal of Rehabilitation Medicine, vol. 43, pp. 323–329, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{Andersson2011,
title = {Mild traumatic brain injuries: a 10-year follow-up},
author = {Andersson, Elisabeth Elgmark and Bedics, Beate Karrdahl and Falkmer, Torbjorn},
year = {2011},
date = {2011-01-01},
journal = {Journal of Rehabilitation Medicine},
volume = {43},
pages = {323--329},
address = {School of Health Sciences, Department of Rehabilitation, Jonkoping University, Jonkoping, Sweden. Elisabeth.Elgmark@hhj.hj.se},
abstract = {OBJECTIVE AND DESIGN: Long-term consequences of mild traumatic brain injuries were investigated based on a 10-year follow-up of patients from a previously-published randomized controlled study of mild traumatic brain injuries. One aim was to describe changes over time after mild traumatic brain injuries in terms of the extent of persisting post-concussion symptoms, life satisfaction, perceived health, activities of daily living, changes in life roles and sick leave. Another aim was to identify differences between the intervention and control groups. PATIENTS: The intervention group comprised 142 persons and the control group 56 persons. METHODS: Postal questionnaires with a response rate of 56%. RESULTS: No differences over time were found for the intervention and control groups in terms of post-concussion symptoms. In the intervention group some variables in life satisfaction, perceived health and daily life were decreased. Some roles had changed over the years for both groups. No other differences between the intervention and control groups were found. However, in both groups sick leave decreased. CONCLUSION: Early individual intervention by a qualified rehabilitation team does not appear to impact on the long-term outcome for persons with symptoms related to mild traumatic brain injuries. The status after approximately 3 weeks is indicative of the status after 10 years.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Turgeon, Christine; Champoux, Francois; Lepore, Franco; Leclerc, Suzanne; Ellemberg, Dave
Auditory processing after sport-related concussions Journal Article
In: Ear & Hearing, vol. 32, pp. 667–670, 2011.
Abstract | BibTeX | Tags: Post-Concussion
@article{Turgeon2011,
title = {Auditory processing after sport-related concussions},
author = {Turgeon, Christine and Champoux, Francois and Lepore, Franco and Leclerc, Suzanne and Ellemberg, Dave},
year = {2011},
date = {2011-01-01},
journal = {Ear \& Hearing},
volume = {32},
pages = {667--670},
address = {1Centre de Recherche en Neuropsychologie et Cognition, Universite de Montreal; 2Centre de recherche interdisciplinaire en readaptation du Montreal metropolitain, Institut Raymond-Dewar; and 3Departement de Kinesiologie, Universite de Montreal, Montreal, Q},
abstract = {OBJECTIVE: : The aim of the study is to investigate whether sport-related concussions disrupt auditory processes. DESIGN: : Sixteen university athletes participated in the study: eight had one or more sport-related concussions, and eight never experienced a concussion. The Frequency Pattern Sequence test, the Duration Pattern Sequence test, the Synthetic Sentence Identification test, and the Staggered Spondaic Word test were used to assess auditory processing. RESULTS: : All nonconcussed athletes have normal auditory processing. In contrast, more than half of the concussed athletes had deficits for one or more of the auditory processing tests. CONCLUSIONS: : The pattern of results suggests that sport-related concussions can disrupt the neurological mechanisms implicated in several auditory processes, including monaural low-redundancy speech recognition, tone pattern recognition, and dichotic listening.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Iverson, Grant L
Mild traumatic brain injury meta-analyses can obscure individual differences Journal Article
In: Brain Injury, vol. 24, pp. 1246–1255, 2010.
Abstract | BibTeX | Tags: Post-Concussion
@article{Iverson2010c,
title = {Mild traumatic brain injury meta-analyses can obscure individual differences},
author = {Iverson, Grant L},
year = {2010},
date = {2010-01-01},
journal = {Brain Injury},
volume = {24},
pages = {1246--1255},
address = {Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada. giverson@interchange.ubc.ca},
abstract = {PRIMARY OBJECTIVE: Several published meta-analyses indicate that mild traumatic brain injury (MTBI) is associated with a favourable course of recovery over a period of days-to-weeks, with no indication of permanent impairment on neuropsychological testing by 3 months post-injury in group studies. These meta-analyses provide important but not definitive information relating to outcome from MTBI in individual patients. The purpose of this paper was to illustrate that a sub-group of patients with residual cognitive deficits could exist, yet be obscured using group inferential statistics. MAIN OUTCOME AND RESULTS: A sample of 30 concussed amateur athletes and a hypothetical sample of 30 adults who had sustained MTBIs were used to illustrate these statistical issues. In both groups, a minority of subjects with residual cognitive deficits were not identified using group statistics. CONCLUSIONS: It is important to appreciate that MTBI meta-analyses represent an aggregation of effect sizes derived from multiple groups across multiple studies. Therefore, this methodology could, theoretically, obscure small sub-group or individual effects. Implications for interpreting meta-analyses are discussed.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Comper, Paul; Hutchison, Michael; Magrys, Sylvia; Mainwaring, Lynda; Richards, Doug
Evaluating the methodological quality of sports neuropsychology concussion research: a systematic review Journal Article
In: Brain Injury, vol. 24, pp. 1257–1271, 2010.
Abstract | BibTeX | Tags: Post-Concussion
@article{Comper2010,
title = {Evaluating the methodological quality of sports neuropsychology concussion research: a systematic review},
author = {Comper, Paul and Hutchison, Michael and Magrys, Sylvia and Mainwaring, Lynda and Richards, Doug},
year = {2010},
date = {2010-01-01},
journal = {Brain Injury},
volume = {24},
pages = {1257--1271},
address = {Toronto Rehabilitation Institute, Toronto, ON, Canada. comper.paul@torontorehab.on.ca},
abstract = {Primary objective: Sports-related concussion is a frequently-occurring, serious neurological event that can produce a spectrum of potentially debilitating primary and secondary problems. Many investigators-particularly neuropsychologists-have focused their efforts on identifying cognitive changes that accompany such injuries. As such, the present review evaluated the methodological quality of neuropsychological sports-related concussion research using a comprehensive, systematic method. Research design: Of 349 studies initially selected by search criteria, a total of 43 studies were evaluated using a Cochrane-style review format. Research methods: Studies were assigned a Level of Evidence using the Centre for Evidence-based Medicine (CEMB) framework. Relevant information related to the methods of each study were extracted and rated for methodological quality using a standardized form-based evaluation tool. Results: The review revealed heterogeneity among the studies in terms of research design, as well as a number of methodological weaknesses and inconsistencies. Conclusion: Despite the proliferation of neuropsychological research on sports-related concussion over the past decade, the methodological quality of studies appears to be highly variable, with many lacking proper scientific rigour. Future research in this area needs to be carefully controlled, repeatable and generalizable, which will contribute to developing practical, evidence-based guidelines for concussion management.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Sveen, Unni; Bautz-Holter, Erik; Sandvik, Leiv; Alvsaker, Kristin; Roe, Cecilie
Relationship between competency in activities, injury severity, and post-concussion symptoms after traumatic brain injury Journal Article
In: Scandinavian Journal of Occupational Therapy, vol. 17, pp. 225–232, 2010.
Abstract | BibTeX | Tags: Post-Concussion
@article{Sveen2010,
title = {Relationship between competency in activities, injury severity, and post-concussion symptoms after traumatic brain injury},
author = {Sveen, Unni and Bautz-Holter, Erik and Sandvik, Leiv and Alvsaker, Kristin and Roe, Cecilie},
year = {2010},
date = {2010-01-01},
journal = {Scandinavian Journal of Occupational Therapy},
volume = {17},
pages = {225--232},
address = {Department of Physical Medicine and Rehabilitation, Oslo University Hospital, Ulleval, Oslo, Norway. unni.sveen@uus.no},
abstract = {OBJECTIVE: To determine to what extent injury severity and post-concussion symptoms after 3 months predict ability in activities 12 months after traumatic brain injury (TBI) and assess the frequency of problems in daily activities. METHODS: A one-year cohort of 63 persons with mild to severe TBI was assessed on admission, after three and 12 months. Injury severity was assessed using the Glasgow Coma Scale, Abbreviated Injury Scale for the head and Injury Severity Score. Post-concussion symptoms were reported using the Rivermead Post Concussion Symptoms Questionnaire after three months. The Patient Competency Rating Scale (PCRS), a self-rating scale of ability in activities, was applied 12 months post-injury. The PCRS consists of the domains interpersonal/emotional and cognitive competency, and instrumental ADL. Multiple backward regression models were performed with the three subscales of PCRS as dependent variables. RESULTS: Activity problems at 12 months were related to perceived cognitive and interpersonal/emotional competency. Post-concussion symptoms reported at three-month follow-up were main predictors of cognitive and interpersonal/emotional competency at 12 months. Injury severity predicted only cognitive competency. CONCLUSION: Symptoms evolving after the trauma seem to be the strongest predictor of perceived ability in activities in this population. This underlines the need for follow-up after TBI to identify persons at risk of developing long-term activity limitations.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Stovner, L J; Schrader, H; Mickeviciene, D; Surkiene, D; Sand, T
Headache after concussion Journal Article
In: European Journal of Neurology, vol. 16, pp. 112–120, 2009.
Abstract | BibTeX | Tags: Post-Concussion
@article{Stovner2009,
title = {Headache after concussion},
author = {Stovner, L J and Schrader, H and Mickeviciene, D and Surkiene, D and Sand, T},
year = {2009},
date = {2009-01-01},
journal = {European Journal of Neurology},
volume = {16},
pages = {112--120},
address = {Norwegian National Headache Centre, Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway. lars.stovner@ntnu.no},
abstract = {BACKGROUND AND PURPOSE: Chronic post-traumatic headache attributed to mild head injury is a somewhat disputed headache diagnosis. A main object of this study was to assess the validity of this diagnosis by studying the headache pattern of concussed patients that participated in one historic (n = 131) and one prospective cohort (n = 217) study. METHODS: Head injury patients were recruited from two hospitals in Kaunas, Lithuania. Controls were recruited amongst patients with minor orthopaedic traumas not involving the head and neck. RESULTS: When data from the two studies were pooled, no difference in any headache category (diagnosis, attack frequency, symptoms) was found one or more years after the trauma, except that photophobia was somewhat more prevalent amongst the concussed patients. In both injury groups, the existence of pre-traumatic headache was a predictor of post-traumatic headache, although pre-traumatic headache seems to have been underreported amongst the concussed patients. There was a significant negative correlation between the duration of unconsciousness and the headache. CONCLUSIONS: This negative correlation, and the lack of specificity indicates that headache occurring 3 months or more after concussion is not caused by the head or brain injury. Rather it may represent an episode of one of the primary headaches, possibly induced by the stress of the situation.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Bryant, Richard A
Disentangling mild traumatic brain injury and stress reactions Book
2008.
BibTeX | Tags: Post-Concussion
@book{Bryant2008,
title = {Disentangling mild traumatic brain injury and stress reactions},
author = {Bryant, Richard A},
year = {2008},
date = {2008-01-01},
booktitle = {New England Journal of Medicine},
volume = {358},
pages = {525--527},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {book}
}
Kashluba, Shauna; Paniak, Chris; Casey, Joseph E
Persistent symptoms associated with factors identified by the WHO Task Force on Mild Traumatic Brain Injury Journal Article
In: Clinical Neuropsychologist, vol. 22, pp. 195–208, 2008.
Abstract | BibTeX | Tags: Post-Concussion
@article{Kashluba2008a,
title = {Persistent symptoms associated with factors identified by the WHO Task Force on Mild Traumatic Brain Injury},
author = {Kashluba, Shauna and Paniak, Chris and Casey, Joseph E},
year = {2008},
date = {2008-01-01},
journal = {Clinical Neuropsychologist},
volume = {22},
pages = {195--208},
address = {'Department of Psychology, University of Windsor, Windsor, Ontario, Canada.},
abstract = {The current study examined the role of factors identified by the World Health Organization's Task Force on Mild Traumatic Brain Injury as being associated with poor outcome after mild traumatic brain injury. Employing symptom severity ratings at 3 months post-injury greater than "mild," subgroups of Higher-Severity (20%) and Lower-Severity (80%) participants were identified. Findings revealed that individuals who report greater symptom complaints at 3 months post-MTBI may be identifiable soon after injury on the basis of the magnitude and severity of early self-reported symptoms, pre-morbid psychological issues, and involvement in compensation-seeking. Injury severity factors did not differ between the groups.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Iverson, G L; Echemendia, R J; Brooks, B L
Lingering effects of concussion in athletes with multiple injuries Journal Article
In: Archives of Clinical Neuropsychology, vol. 22, pp. 897–898, 2007, ISSN: 0887-6177.
BibTeX | Tags: Post-Concussion
@article{Iverson2007,
title = {Lingering effects of concussion in athletes with multiple injuries},
author = {Iverson, G L and Echemendia, R J and Brooks, B L},
issn = {0887-6177},
year = {2007},
date = {2007-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {22},
pages = {897--898},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Solomon, Gary S
A comment on "exertion" after sports-related concussion Journal Article
In: Journal of Neuropsychiatry & Clinical Neurosciences, vol. 19, pp. 195–196, 2007.
BibTeX | Tags: Post-Concussion
@article{Solomon2007,
title = {A comment on "exertion" after sports-related concussion},
author = {Solomon, Gary S},
year = {2007},
date = {2007-01-01},
journal = {Journal of Neuropsychiatry \& Clinical Neurosciences},
volume = {19},
pages = {195--196},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Kongsted, A; Jorgensen, L V; Bendix, T; Korsholm, L; Leboeuf-Yde, C
Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study Journal Article
In: Clinical Rehabilitation, vol. 21, pp. 1038–1049, 2007.
Abstract | Links | BibTeX | Tags: Post-Concussion
@article{Kongsted2007,
title = {Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study},
author = {Kongsted, A and Jorgensen, L V and Bendix, T and Korsholm, L and Leboeuf-Yde, C},
doi = {10.1177/0269215507075519},
year = {2007},
date = {2007-01-01},
journal = {Clinical Rehabilitation},
volume = {21},
pages = {1038--1049},
abstract = {Objective: To evaluate whether smooth pursuit eye movements differed between patients with long-lasting whiplash-associated disorders and controls when using a purely computerized method for the eye movement analysis. Design: Cross-sectional study comparing patients with whiplash-associated disorders and controls who had not been exposed to head or neck trauma and had no notable neck complaints. Methods: Smooth pursuit eye movements were registered while the subjects were seated with and without rotated cervical spine. Subjects: Thirty-four patients with whiplash-associated disorders with symptoms more than six months after a car collision and 60 controls. Results: Smooth pursuit eye movements were almost identical in patients with chronic whiplash-associated disorders and controls, both when the neck was rotated and in the neutral position. Conclusion: Disturbed smooth pursuit eye movements do not appear to be a distinct feature in patients with chronic whiplash-associated disorders. This is in contrast to results of previous studies and may be due to the fact that analyses were performed in a computerized and objective manner. Other possible reasons for the discrepancy to previous studies are discussed.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Collie, A; McCrory, P; Makdissi, M
Does history of concussion affect current cognitive status?[see comment]. Journal Article
In: British Journal of Sports Medicine, vol. 40, pp. 550–551, 2006.
Abstract | BibTeX | Tags: Post-Concussion
@article{Collie2006a,
title = {Does history of concussion affect current cognitive status?[see comment].},
author = {Collie, A and McCrory, P and Makdissi, M},
year = {2006},
date = {2006-01-01},
journal = {British Journal of Sports Medicine},
volume = {40},
pages = {550--551},
abstract = {The association between self reported history of concussion and current neurocognitive status is controversial. Some football studies suggest that athletes with a history of concussion display cognitive impairment relative to athletes with no history of concussion, but other studies have not been able to reproduce such findings. This study shows that there is no relation between the number of previous self reported episodes of concussion and current cognitive state, directly contradicting the findings of previous research.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Lee, S M; Kelly, D F; Cantu, R C
Temporal window of vulnerability to repetitive experimental concussive brain injury - Comments Journal Article
In: Neurosurgery, vol. 56, pp. 373–374, 2005, ISSN: 0148-396X.
BibTeX | Tags: Post-Concussion
@article{Lee2005,
title = {Temporal window of vulnerability to repetitive experimental concussive brain injury - Comments},
author = {Lee, S M and Kelly, D F and Cantu, R C},
issn = {0148-396X},
year = {2005},
date = {2005-01-01},
journal = {Neurosurgery},
volume = {56},
pages = {373--374},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Belanger, Heather G; Curtiss, Glenn; Demery, Jason A; Lebowitz, Brian K; Vanderploeg, Rodney D
Factors moderating neuropsychological outcomes following mild traumatic brain injury: a meta-analysis Journal Article
In: Journal of the International Neuropsychological Society, vol. 11, pp. 215–227, 2005.
Abstract | BibTeX | Tags: Post-Concussion
@article{Belanger2005,
title = {Factors moderating neuropsychological outcomes following mild traumatic brain injury: a meta-analysis},
author = {Belanger, Heather G and Curtiss, Glenn and Demery, Jason A and Lebowitz, Brian K and Vanderploeg, Rodney D},
year = {2005},
date = {2005-01-01},
journal = {Journal of the International Neuropsychological Society},
volume = {11},
pages = {215--227},
address = {James A. Haley Veterans' Hospital, Tampa, Florida 33612, USA. Heather.Belanger@med.va.gov},
abstract = {There continues to be debate about the long-term neuropsychological impact of mild traumatic brain injury (MTBI). A meta-analysis of the relevant literature was conducted to determine the impact of MTBI across nine cognitive domains. The analysis was based on 39 studies involving 1463 cases of MTBI and 1191 control cases. The overall effect of MTBI on neuropsychological functioning was moderate (d = .54). However, findings were moderated by cognitive domain, time since injury, patient characteristics, and sampling methods. Acute effects (less than 3 months postinjury) of MTBI were greatest for delayed memory and fluency (d = 1.03 and .89, respectively). In unselected or prospective samples, the overall analysis revealed no residual neuropsychological impairment by 3 months postinjury (d = .04). In contrast, clinic-based samples and samples including participants in litigation were associated with greater cognitive sequelae of MTBI (d = .74 and .78, respectively at 3 months or greater). Indeed, litigation was associated with stable or worsening of cognitive functioning over time. The implications and limitations of these findings are discussed.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Gall, B; Parkhouse, W S; Goodman, D
Exercise following a sport induced concussion Journal Article
In: British Journal of Sports Medicine, vol. 38, pp. 773–777, 2004.
Abstract | BibTeX | Tags: Post-Concussion
@article{Gall2004,
title = {Exercise following a sport induced concussion},
author = {Gall, B and Parkhouse, W S and Goodman, D},
year = {2004},
date = {2004-01-01},
journal = {British Journal of Sports Medicine},
volume = {38},
pages = {773--777},
address = {Simon Fraser University, Burnaby, Canada.},
abstract = {OBJECTIVE: To determine if an athlete's capacity to perform exercise is impaired following concussion and whether this would be reflected by an altered heart rate response. METHODS: Of the 14 concussed athletes, nine missed playing time as a direct result of their concussion and five did not. The concussed athletes performed an exercise protocol on a cycle ergometer within 72 hours of being asymptomatic at rest and a second test at 5 days following the previous assessment. Matched controls (n = 14) were tested using the same time line. The exercise protocol consisted of a 2 minute warm up, 10 minute, low-moderate intensity, steady state exercise session, and a high intensity interval protocol. The interval protocol consisted of a 40 second high intensity bout, followed by a 40 second rest period. This protocol continued until the participant had reached volitional fatigue. RESULTS: The number of exercise bouts completed was not significantly different from their matched controls. However, concussed athletes who missed playing time had a significantly higher heart rate during the steady state exercise session. During this same period, they also exhibited a greater rise in heart rate over time. CONCLUSION: These findings indicate that exercise capacity is unaffected in concussed athletes who are asymptomatic at rest. However, their heart rate response to submaximal exercise is increased.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Cantu, R C; Kelly, D F; Maroon, J C; Balles, J E
Duration of cognitive impairment after sports concussion - Comments Journal Article
In: Neurosurgery, vol. 54, pp. 1078–1080, 2004, ISSN: 0148-396X.
BibTeX | Tags: Post-Concussion
@article{Cantu2004,
title = {Duration of cognitive impairment after sports concussion - Comments},
author = {Cantu, R C and Kelly, D F and Maroon, J C and Balles, J E},
issn = {0148-396X},
year = {2004},
date = {2004-01-01},
journal = {Neurosurgery},
volume = {54},
pages = {1078--1080},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Marshall, L F; Bailes, J E; McCleary, C A; Cantu, R C
Immediate neurocognitive effects of concussion - Comments Journal Article
In: Neurosurgery, vol. 50, pp. 1040–1042, 2002, ISSN: 0148-396X.
BibTeX | Tags: Post-Concussion
@article{Marshall2002a,
title = {Immediate neurocognitive effects of concussion - Comments},
author = {Marshall, L F and Bailes, J E and McCleary, C A and Cantu, R C},
issn = {0148-396X},
year = {2002},
date = {2002-01-01},
journal = {Neurosurgery},
volume = {50},
pages = {1040--1042},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Dorovskikh, I V; Shcheglov, A. Yu; Lyubin, A G
Computer processing of data on mental impairments during the acute period of concussion Journal Article
In: Computational Mathematics and Modeling, vol. 13, pp. 201–207, 2002.
Abstract | BibTeX | Tags: Post-Concussion
@article{Dorovskikh2002,
title = {Computer processing of data on mental impairments during the acute period of concussion },
author = {Dorovskikh, I V and Shcheglov, A.Yu and Lyubin, A G},
year = {2002},
date = {2002-01-01},
journal = {Computational Mathematics and Modeling},
volume = {13},
pages = {201--207},
abstract = {The article presents results of computer processing of experimental information obtained from patients during the acute period of concussion. A number of computational procedures are described.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Ferrari, R
Survey on the postconcussion and whiplash syndromes Journal Article
In: Headache, vol. 41, pp. 913–914, 2001.
BibTeX | Tags: Post-Concussion
@article{Ferrari2001,
title = {Survey on the postconcussion and whiplash syndromes},
author = {Ferrari, R},
year = {2001},
date = {2001-01-01},
journal = {Headache},
volume = {41},
pages = {913--914},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Mittenberg, W; Strauman, S
Diagnosis of mild head injury and the postconcussion syndrome Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 15, pp. 783–791, 2000.
Abstract | BibTeX | Tags: Post-Concussion
@article{Mittenberg2000,
title = {Diagnosis of mild head injury and the postconcussion syndrome},
author = {Mittenberg, W and Strauman, S},
year = {2000},
date = {2000-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {15},
pages = {783--791},
address = {Nova Southeastern University, Ft. Lauderdale, FL 33314, USA.},
abstract = {Mild head injuries can cause acute transient cognitive inefficiency that typically resolves within 3 months. Postconcussion syndrome may initially be related to acute cerebral dysfunction but can also arise as a psychological consequence of head trauma. The syndrome persists beyond 3 months in a significant number of patients with mild head trauma as a psychological disorder. International Classification of Diseases diagnostic criteria for postconcussion syndrome are currently recommended for clinical purposes. These criteria are contrasted with research diagnostic criteria used in the Diagnostic and Statistical Manual of Mental Disorders. The differential diagnosis of persistent cognitive and postconcussive symptoms in forensic practice is reviewed. [References: 42]},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
McCrory, P R; Berkovic, S F
Concussive convulsions. Incidence in sport and treatment recommendations Journal Article
In: Sports Medicine, vol. 25, pp. 131–136, 1998.
Abstract | BibTeX | Tags: Post-Concussion
@article{McCrory1998,
title = {Concussive convulsions. Incidence in sport and treatment recommendations},
author = {McCrory, P R and Berkovic, S F},
year = {1998},
date = {1998-01-01},
journal = {Sports Medicine},
volume = {25},
pages = {131--136},
address = {Department of Medicine (Neurology), University of Melbourne, Heidelberg, Australia. pmccrory@compuserve.com},
abstract = {Concussive convulsions (CC) are nonepileptic phenomena which are an immediate sequelae of concussive brain injury. Although uncommon, occurring with an approximate incidence of 1 case per 70 concussions, these episodes are often confused with post-traumatic epilepsy which may occur with more severe structural brain injury. The pathophysiological mechanism of CC remains speculative, but may involve a transient traumatic functional decerebration with loss of cortical inhibition and release of brainstem activity. The phenomenology of the CC is somewhat akin to convulsive syncope, with an initial tonic phase occurring within 2 seconds of impact, followed by a clonic or myoclonic phase which may last several minutes. Lateralising features are common during the convulsions. There is no evidence of structural or permanent brain injury on clinical assessment, neuropsychological testing or neuroimaging studies. Long term outcome is universally good with no evidence of long term epilepsy and athletes are usually able to return to sport within 2 weeks. The correct management of these episodes centres on the appropriate management of the associated concussive injury and the exclusion of other cerebral injury by medical assessment. The CC requires no specific management beyond immediate onfield first aid measures such as protection of the airway. Antiepileptic therapy is not indicated and prolonged absence from sport is unwarranted. These episodes, although dramatic, are relatively straightforward to manage and all team physicians and those involved in athlete care need to be aware of this condition. [References: 37]},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Gasquoine, P G
Postconcussion symptoms Journal Article
In: Neuropsychology Review, vol. 7, pp. 77–85, 1997.
Abstract | BibTeX | Tags: Post-Concussion
@article{Gasquoine1997,
title = {Postconcussion symptoms},
author = {Gasquoine, P G},
year = {1997},
date = {1997-01-01},
journal = {Neuropsychology Review},
volume = {7},
pages = {77--85},
address = {South Texas Neuropsychology, Corpus Christi 78411, USA.},
abstract = {Research pertaining to the self-report of symptoms after traumatic brain injury was reviewed. Cognitive, emotional, and motivational factors have more relevance than demographic (except for female sex) and personality factors. Specific neuropsychological deficits in attention and memory have been found in the early stages after head injury of even mild severity. This is unlikely to be the only factor affecting symptom persistence. Exaggeration of cognitive dysfunction occurs in some cases, but appears unrelated to symptom overreport. Increased emotional distress typically accompanies symptom persistence. The psychological reaction of preoccupation with symptoms and emotional distress is not unique to concussion, but also occurs after severe head injury and back injury and relates more to the personal interpretation of the effect of the trauma than to objective indicators of brain injury severity. [References: 75]},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Teasdale, T W; Engberg, A
Duration of cognitive dysfunction after concussion, and cognitive dysfunction as a risk factor: a population study of young men Journal Article
In: BMJ, vol. 315, pp. 569–572, 1997.
BibTeX | Tags: Post-Concussion
@article{Teasdale1997a,
title = {Duration of cognitive dysfunction after concussion, and cognitive dysfunction as a risk factor: a population study of young men},
author = {Teasdale, T W and Engberg, A},
year = {1997},
date = {1997-01-01},
journal = {BMJ},
volume = {315},
pages = {569--572},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Young, W B; Silberstein, S D
Post-concussion syndrome Journal Article
In: Neurology, vol. 46, pp. 1488, 1996.
BibTeX | Tags: Post-Concussion
@article{Young1996,
title = {Post-concussion syndrome},
author = {Young, W B and Silberstein, S D},
year = {1996},
date = {1996-01-01},
journal = {Neurology},
volume = {46},
pages = {1488},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Cremona-Meteyard, S L; Geffen, G M
Persistent visuospatial attention deficits following mild head injury in Australian Rules football players.[Erratum appears in Neuropsychologia 1995 May;33(5):659] Journal Article
In: Neuropsychologia, vol. 32, pp. 649–662, 1994.
Abstract | BibTeX | Tags: Post-Concussion
@article{Cremona-Meteyard1994,
title = {Persistent visuospatial attention deficits following mild head injury in Australian Rules football players.[Erratum appears in Neuropsychologia 1995 May;33(5):659]},
author = {Cremona-Meteyard, S L and Geffen, G M},
year = {1994},
date = {1994-01-01},
journal = {Neuropsychologia},
volume = {32},
pages = {649--662},
address = {Department of Psychology, University of Queensland, Brisbane, Australia.},
abstract = {The ability to direct visuospatial attention covertly was studied in two groups of Australian Rules football players who had sustained mild head injuries (MHI) during competition. Their performance was compared to 12 non-injured sportsmen using a cued reaction time (RT) task which measured the RT benefit of valid directional cueing and the RT cost of miscueing. In Experiment 1, nine footballers tested within 2 weeks of sustaining their injury showed the same cost as normals in speed of response to targets in the unexpected visual field. However, their responses to targets in the expected location (following valid cues) showed only a minor benefit compared to controls. Moderate to severely injured patients also show a normal cost but a reduced or absent benefit (Cremona-Meteyard and Geffen, Neuropsychologia 30, 123-132, 1992). When subjects were retested 1 year later their pattern of performance had not altered but overall RT had improved. Experiment 2 replicated these findings in another eight footballers tested at least 1 year after sustaining their MHI. A persistent consequence of MHI might be an inability to take action quickly in response to expected events.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Mittenberg, W; DiGiulio, D V; Perrin, S; Bass, A E
Symptoms following mild head injury: expectation as aetiology Journal Article
In: Journal of Neurology, Neurosurgery & Psychiatry, vol. 55, pp. 200–204, 1992.
Abstract | BibTeX | Tags: Post-Concussion
@article{Mittenberg1992,
title = {Symptoms following mild head injury: expectation as aetiology},
author = {Mittenberg, W and DiGiulio, D V and Perrin, S and Bass, A E},
year = {1992},
date = {1992-01-01},
journal = {Journal of Neurology, Neurosurgery \& Psychiatry},
volume = {55},
pages = {200--204},
address = {Nova University School of Psychology, Fort Lauderdale, Florida 33314.},
abstract = {An affective, somatic, and memory check-list of symptoms was administered to subjects who had no personal experience or knowledge of head injury. Subjects indicated their current experiences of symptoms, then imagined having sustained a mild head injury in a motor vehicle accident, and endorsed symptoms they expected to experience six months after the injury. The checklist of symptoms was also administered to a group of patients with head injuries for comparison. Imaginary concussion reliably showed expectations in controls of a coherent cluster of symptoms virtually identical to the postconcussion syndrome reported by patients with head trauma. Patients consistently underestimated the premorbid prevalence of these symptoms compared with the base rate in controls. Symptom expectations appear to share as much variance with postconcussion syndrome as head injury itself. An aetiological role is suggested.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Barth, J T; Macciocchi, S N; Giordani, B; Rimel, R; Jane, J A; Boll, T J
Neuropsychological sequelae of minor head injury Journal Article
In: Neurosurgery, vol. 13, pp. 529–533, 1983.
Abstract | BibTeX | Tags: Post-Concussion
@article{Barth1983,
title = {Neuropsychological sequelae of minor head injury},
author = {Barth, J T and Macciocchi, S N and Giordani, B and Rimel, R and Jane, J A and Boll, T J},
year = {1983},
date = {1983-01-01},
journal = {Neurosurgery},
volume = {13},
pages = {529--533},
abstract = {Seventy-one patients with minor head injury were given extensive neuropsychological evaluations 3 months after injury. A significant percentage of the patients demonstrated cognitive impairment, which seemed essentially unrelated to the length of unconsciousness or of posttraumatic amnesia. Impaired patients evidenced memory and visuospatial deficits. Cognitively impaired patients also had difficulty returning to work after injury. The psychological and cognitive impairment that follows minor head injury is discussed in relation to diagnostic and intervention issues.},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}
Ewing, R; McCarthy, D; Gronwall, D M A; Wrightson, P
Persisting effects of concussion shown by impaired performance at altitude Journal Article
In: Journal of Clinical Neuropsychology, vol. 2, pp. 147–155, 1981.
BibTeX | Tags: Post-Concussion
@article{Ewing1981,
title = {Persisting effects of concussion shown by impaired performance at altitude},
author = {Ewing, R and McCarthy, D and Gronwall, D M A and Wrightson, P},
year = {1981},
date = {1981-01-01},
journal = {Journal of Clinical Neuropsychology},
volume = {2},
pages = {147--155},
keywords = {Post-Concussion},
pubstate = {published},
tppubtype = {article}
}