Characteristics of Pediatric and Adolescent Concussion Clinic Patients With Postconcussion Amnesia.
OBJECTIVE
The current study examines the demographics, injury characteristics, and outcomes associated with the presence of postconcussion amnesia in young concussion clinic patients.


METHODS
Cross-sectional, retrospective clinical cohort.


METHODS
Concussion services clinic.


METHODS
Pediatric and adolescent concussion services program patients, presenting within 10 days postinjury, aged 10-18 years, with the goal of returning to sport (n = 245).


METHODS
Age, gender, race, head trauma history, injury mechanism, loss of consciousness (LOC), injury-related visit to an emergency department, cognitive and balance scores, symptoms, and management recommendations.


METHODS
Univariate and multivariate analyses determined adjusted odds ratios for reported presence of any postconcussion amnesia (anterograde or retrograde).


RESULTS
Factors associated with amnesia (univariate, P < 0.10) and included in the multivariate model were race, head trauma history, mechanism of injury, LOC, injury-related visit to an emergency department, management recommendations and time of injury and initial visit symptom severity. Age and gender were also included in the model due to biological significance. Of the 245 patients, 181 had data for all model variables. Of the 181 patients, 58 reported amnesia. History of head trauma [odds ratio (OR), 2.7; 95% confidence interval (CI), 1.3-5.7]; time of injury (TOI) symptom severity >75th percentile (OR, 2.6; 95% CI, 1.2-5.3) and LOC (OR, 2.2; 95% CI, 1.1-4.6) were found to have significant and independent relationships with amnesia in the multivariate model.


CONCLUSIONS
This study illustrates that patients presenting with postconcussion amnesia are more likely to have a history of head trauma, LOC, and greater symptom severity. Future research is needed to better understand amnesia following concussion.


CONCLUSIONS
Amnesia presence, previous head trauma, LOC, and increased symptom severity may aid in identifying patients with a greater initial injury burden who warrant closer observation and more conservative management.
*Matthew Gfeller Sport-Related Traumatic Brain Injury Research Center, Department of Exercise and Sport Science, The University of North Carolina at Chapel Hill, Chapel Hill, NC; †The Injury Prevention Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC; ‡Emergency Medicine Physicians (EMP), Canton, OH; §Emergency Services Institute, WakeMed Health & Hospitals, Raleigh, NC; ¶Raleigh Neurology Associates, P.A., Raleigh, NC; and ‖WakeMed Concussion Services, WakeMed Health & Hospitals, Raleigh, NC.
Johna K
JK
Register-Mihalik
Valerie J
VJ
De Maio
Holly L
HL
Tibbo-Valeriote
John D
JD
Wooten
D000293:Adolescent; D000647:Amnesia / Q000208:ethnology / Q000209:etiology*; D001924:Brain Concussion / Q000150:complications*; D002648:Child; D003430:Cross-Sectional Studies; D003710:Demography; D006801:Humans; D008487:Medical History Taking; D016017:Odds Ratio; D012189:Retrospective Studies; D012307:Risk Factors; D014474:Unconsciousness / Q000150:complications