
Eleven patients of ipsilateral seizures or ipsilateral neurological deficit were studied under the heading of ipsilateral cerebral events. Ipsilateral localisation was based on electroencephalogram (EEG) and computed tomography (CT) scan or both. Group A had 4 patients who had predominantly motor neurological deficit and ipsilateral pathology was evident on CT scan. Surgery re-confirmed the lesion in one case. Group B had 7 patients who had partial motor seizures with or without generalisation. EEG showed ipsilateral focus in all but only 3 patients revealed ipsilateral lesion on CT scan. All patients showed improvement on medical treatment except one case which underwent surgery. Various hypotheses are put forward for the ipsilateral phenomenon and the mechanism implicated are discussed.
