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Article Dans Une Revue Journal of Neurotrauma Année : 2016

Driving after concussion: Is it safe to drive after symptoms resolve?

Résumé

Post-concussion impairments may result in unsafe driving performance, but little research is available to guide consensus on when concussed individuals should return to driving. The purpose of this study was to compare driving performance between individuals with and without a concussion and to explore relationships between neuropsychological and driving performance. Fourteen participants with concussion (Age:20.2±0.9yo) and 14 non-concussed age and driving experience matched controls (Age:20.4±1.1yo) completed a graded symptom checklist, a brief neuropsychological exam, and a 20.5km driving simulation task. Participants with a concussion completed driving simulation within 48 hours of becoming asymptomatic (15.9±9.0 days post-concussion). One-way ANOVAs were used to compare total number of crashes, tickets, lane excursions; as well as standard deviation of lateral position (SDLP), and standard deviation of speed. Pearson's correlations were conducted to explore the relationship between the neuropsychological and driving performance separately by group (±=0.05). Participants with a concussion committed more frequent lane excursions (concussed:10.9±4.5; controls:7.4±2.4; p=0.017) and exhibited greater SDLP compared to controls during the first (concussed:45.7±21.3cm, controls:27.4±6.1cm; p=0.030) and final curve (concussed:39.6±24.4cm; controls:33.5±21.3cm; p=0.036). Poorer performance on symbol digit modalities (r=-0.54), Rey Osterrieth Complex Figure (r=-0.53), verbal memory (r=-0.77), and motor speed (r=-0.54) were correlated with more frequent lane excursions among the concussed group, but not the control group. Despite being asymptomatic, concussed participants exhibited poorer vehicle control, especially when navigating curves. Driving impairments may persist beyond when individuals with a concussion have returned to driving. Our study provides preliminary guidance regarding which neuropsychological functions may best indicate driving impairment following concussion.
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Dates et versions

hal-01425252 , version 1 (03-01-2017)
hal-01425252 , version 2 (11-05-2017)
hal-01425252 , version 3 (21-06-2017)

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Julianne Schmidt, Nicole L Hoffman, Maud Ranchet, Stephen Miller, Phillip Tomporowski, et al.. Driving after concussion: Is it safe to drive after symptoms resolve?. Journal of Neurotrauma, 2016, 34 (8), pp.1571-1578. ⟨10.1089/neu.2016.4668⟩. ⟨hal-01425252v3⟩
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