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Journal of Head Trauma Rehabilitation:
doi: 10.1097/HTR.0000000000000057
Original Article: PDF Only

Traumatic Brain Injury and Psychogenic Seizures in Veterans.

Salinsky, Martin MD; Storzbach, Daniel PhD; Goy, Elizabeth PhD; Evrard, Collette FNP

Published Ahead-of-Print
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Abstract

Objective: To evaluate a proposed seizure etiology of traumatic brain injury (TBI) as a risk factor for psychogenic nonepileptic seizures (PNESs), the effect of reported TBI severity on the diagnosis of PNES versus epileptic seizures (ESs), and the potential moderating role of posttraumatic stress disorder (PTSD).

Participants, Setting: Veterans with a diagnosis of PNES or ES during epilepsy monitoring at a Veterans Affairs Medical Center.

Design: Retrospective review of seizure type, proposed seizure etiology, TBI severity, and PTSD.

Main Outcomes: Both PNES and ES groups were compared for TBI history and severity, and prior diagnosis of PTSD.

Results: Traumatic brain injury was the proposed seizure etiology for 57% of 67 PNES patients versus 35% of 54 ES patients (P < .05). It was mild in 87% of PNES patients and 37% of ES patients (P < .001). Posttraumatic stress disorder increased the likelihood of diagnosing PNES versus ES in Veterans with mild TBI as the proposed seizure etiology.

Conclusions: Veterans with PNES commonly cite a TBI as the cause for seizures. Mild TBI was strongly associated with PNES versus ES. Posttraumatic stress disorder may moderate the development of PNES in Veterans with a history of mild TBI. Clinicians caring for Veterans with seizures may use these results in selecting patients for early diagnostic evaluation.

(C) 2014 Wolters Kluwer Health | Lippincott Williams & Wilkins

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