Acute subdural hematoma and the periodic lateralized epileptiform discharges.

Focal motor seizures associated with periodic lateralized epileptiform discharges (PLEDs) were observed in two patients with acute subudral hematoma. Following the surgery, one patient continued to exhibit PLEDs but clinical seizures were absent PLEDs recurred in the second patient due to inadequate anticonvulsant medication. Autopsy study in one patient suggests that underlying cerebral contusion was not responsible for the occurrence of PLEDs.