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Rehabilitation Research and Practice
Volume 2012, Article ID 415740, 7 pages
http://dx.doi.org/10.1155/2012/415740
Clinical Study

Outcome from Complicated versus Uncomplicated Mild Traumatic Brain Injury

1Department of Psychiatry, University of British Columbia, 2255 Wesbrook Mall, Vancouver, BC, Canada V6T 2A1
2Department of Orthopaedics and Rehabilitation, Walter Reed National Military Medical Center and Defense and Veterans Brain Injury Center, 11300 Rockville Pike, Suite 1100, North Bethesda, MD 20852, USA
3Department of Neurosciences and Rehabilitation, Tampere University Hospital and University of Tampere Medical School, PL 2000, 33521 Tampere, Finland
4Department of Neurosciences and Rehabilitation and Emergency Department Acuta, Tampere University Hospital, PL 2000, 33521 Tampere, Finland
5Medical Imaging Centre of Pirkanmaa Hospital District and University of Tampere Medical School, PL 2000, 33521 Tampere, Finland

Received 4 November 2011; Revised 3 February 2012; Accepted 27 February 2012

Academic Editor: Anne Felicia Ambrose

Copyright © 2012 Grant L. Iverson et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. To compare acute outcome following complicated versus uncomplicated mild traumatic brain injury (MTBI) using neurocognitive and self-report measures. Method. Participants were 47 patients who presented to the emergency department of Tampere University Hospital, Finland. All completed MRI scanning, self-report measures, and neurocognitive testing at 3-4 weeks after injury. Participants were classified into the complicated MTBI or uncomplicated MTBI group based on the presence/absence of intracranial abnormality on day-of-injury CT scan or 3-4 week MRI scan. Results. There was a large statistically significant difference in time to return to work between groups. The patients with uncomplicated MTBIs had a median of 6.0 days (IQR = 0.75–14.75, range = 0–77) off work compared to a median of 36 days (IQR = 13.5–53, range = 3–315) for the complicated group. There were no significant differences between groups for any of the neurocognitive or self-report measures. There were no differences in the proportion of patients who (a) met criteria for ICD-10 postconcussional disorder or (b) had multiple low scores on the neurocognitive measures. Conclusion. Patients with complicated MTBIs took considerably longer to return to work. They did not perform more poorly on neurocognitive measures or report more symptoms, at 3-4 weeks after injury compared to patients with uncomplicated MTBIs.