The ideal rehabilitation of traumatic brain injury(TBI) would include prevention and identification of the risk factors of posttraumatic seizure(PTS).

We analyzed the medical records of 316 consecutive series of TBI patients, admitted to the Soonchunhyang University Hospital ,Chunan, Chung Nam, Korea, between March, 1991 and March, 1994. Of these patients, 40(12.7%) developed PTS following TBI, the incidence of early seizure(occuring within 1 week following TBI) being 19(6.5%), and of late seizure(occuring after 1 weeks) being 21(6.7%). 52.5% of PTS classified as focal seizure, 30% as general, 17.5% as focal to general or general to focal. Of thoes with severe, moderate and mild TBI, 24.2%, 17.2 %, and 7.1% developed PTS, respectively. Diffuse axonal injury, intradural hemorrhage confirmed with CT and/or MRI, increased the incidence of PTS. In the patients with cranicetomy including dura incision, 52.5% of the patients developed PTS as compared with 8.4% of patients without dura incision.

As a results, severity of TBI, and CT/MRI findings and craniectomy including dura incision provide useful predictive values of PTS.