Andrew R Mayer1, Christopher J Wertz, Cidney R Robertson-Benta, Sharvani Pabbathi Reddy, David D Stephenson, Andrew B Dodd, Scott J Oglesbee, Edward J Bedrick, Christina L Master, Mathew Grady, Nicholas A Shaff, Faith M Hanlon, Richard A Campbell, John P Phillips, Roger L Zemek, Keith Owen Yeates, Timothy B Meier, Rebekah Mannix, John J Leddy, Kristy B Arbogast, Grace Park. 1. The Mind Research Network/Lovelace Biomedical and Environmental Research Institute, Albuquerque, New Mexico (Drs Mayer, Stephenson, Hanlon, and Phillips, Messrs Wertz, Dodd, and Shaff, and Mss Robertson-Benta and Pabbathi Reddy); Departments of Psychiatry and Behavioral Sciences (Dr Mayer), Psychology (Drs Mayer and Campbell), Neurology (Drs Mayer and Phillips), and Emergency Medicine (Mr Oglesbee and Dr Park), University of New Mexico, Albuquerque; Department of Epidemiology and Biostatistics, University of Arizona, Tucson (Dr Bedrick); Center for Injury Research and Prevention, Department of Pediatrics (Drs Master, Grady, and Arbogast), and Division of Orthopedic Surgery (Drs Master and Grady), The Children's Hospital of Philadelphia, Philadelphia; Department of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Ontario, Canada (Dr Zemek); Department of Psychology (Dr Yeates), Alberta Children's Hospital Research Institute (Dr Yeates), and Hotchkiss Brain Institute (Dr Yeates), University of Calgary, Calgary, Alberta, Canada; Department of Neurosurgery, Medical College of Wisconsin, Milwaukee (Dr Meier); Departments of Cell Biology, Neurobiology and Anatomy (Dr Meier) and Biomedical Engineering (Dr Meier), Medical College of Wisconsin, Milwaukee; Division of Emergency Medicine, Boston Children's Hospital, Boston, Massachusetts (Dr Mannix); and UBMD Department of Orthopaedics and Sports Medicine, Jacobs School of Medicine, University at Buffalo, Buffalo, New York (Dr Leddy).
Abstract
OBJECTIVE: To evaluate diagnostic/prognostic implications of neurosensory testing during the subacute stage in patients with pediatric mild traumatic brain injury (pmTBI). SETTING: Recruitment from pediatric emergency department and urgent care clinics, assessment in a controlled environment. PARTICIPANTS: In total, 146 pmTBI patients evaluated 7.4 ± 2.3 days and approximately 4 months postinjury; 104 age/sex-matched healthy controls (HCs) at equivalent time points. DESIGN: Prospective cohort study. MAIN MEASURES: Neurosensory examination based on sequence of 10 established tests of vestibular-ocular, oculomotor, vestibulospinal, and visual functioning. RESULTS: The amount of symptom provocation (positive change from pretest symptomatology) was significantly increased in pmTBI relative to HCs on every subtest 1 week postinjury, as were deficits in monocular accommodative amplitude and King-Devick Test errors. However, symptom provocation did not meaningfully alter diagnostic sensitivity/specificity relative to more easily obtained pretest symptom ratings. Evidence of clinically significant symptom provocation 1 week postinjury improved sensitivity (Δ = +12.9%) of identifying patients with persistent postconcussive symptoms 4 months postinjury on an independent symptom measure. CONCLUSIONS: The diagnostic sensitivity/specificity of neurosensory testing in acutely concussed youth may be limited at 1 week postinjury as a function of natural recovery occurring in most emergency department cohorts. Neurosensory screening may have greater utility for identifying patients who experience delayed recovery.
OBJECTIVE: To evaluate diagnostic/prognostic implications of neurosensory testing during the subacute stage in patients with pediatric mild traumatic brain injury (pmTBI). SETTING: Recruitment from pediatric emergency department and urgent care clinics, assessment in a controlled environment. PARTICIPANTS: In total, 146 pmTBI patients evaluated 7.4 ± 2.3 days and approximately 4 months postinjury; 104 age/sex-matched healthy controls (HCs) at equivalent time points. DESIGN: Prospective cohort study. MAIN MEASURES: Neurosensory examination based on sequence of 10 established tests of vestibular-ocular, oculomotor, vestibulospinal, and visual functioning. RESULTS: The amount of symptom provocation (positive change from pretest symptomatology) was significantly increased in pmTBI relative to HCs on every subtest 1 week postinjury, as were deficits in monocular accommodative amplitude and King-Devick Test errors. However, symptom provocation did not meaningfully alter diagnostic sensitivity/specificity relative to more easily obtained pretest symptom ratings. Evidence of clinically significant symptom provocation 1 week postinjury improved sensitivity (Δ = +12.9%) of identifying patients with persistent postconcussive symptoms 4 months postinjury on an independent symptom measure. CONCLUSIONS: The diagnostic sensitivity/specificity of neurosensory testing in acutely concussed youth may be limited at 1 week postinjury as a function of natural recovery occurring in most emergency department cohorts. Neurosensory screening may have greater utility for identifying patients who experience delayed recovery.
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