Focal temporal burst-suppression during Wada-test correlated with speech arrest

Abstract

This patient underwent a repeat Wada test after placement of subdural grid electrodes for chronic electrocorticographic recording (ECoG). Focal burst suppression pattern was recorded by the left temporal but not the suprasylvian subdural electrodes after intracarotid injection of 100 mg of sodium-amobarbital. Speech arrest continued until the recorded became record became continuous. In contrast to the prolonged hemispheric slowing by surface electroencephalogram (EEG), focal burst suppression on ECoG can be related tightly related with cortical dysfunction induced by intracarotid amobarbital injection.