Epilepsy Associated with Hemiplegia: 1. Seizure Manifestations

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Abstract
1. The seizure manifestations of patients with hemiplegia were reminiscent of partial seizures. The motor manifestations were notably asymmetrical and impairment of consciousness was mild. Nevertheless, tonic seizures, identified by electroclinical correlation were found in 49 patients (88%) although they were predominantly unilateral or asymmetrical. 2. Unclassified seizures characterized by ictal automatisms, which mimic complex partial seizures was observed in 5 patients (9%). 3. Late epileptic seizures of the HHE syndrome were regarded as psychomotor seizures by Gastaut et al. In the present study, however, complex partial seizures were found in only 3 at 28 patients with HHE syndrome (11%) whereas tonic seizures in 23 of these patients (82%). One possible reason for this discrepancy is bias in the selected patient population, because those with transient hemiplegia were not included, and infrequently occurring partial seizures might have been missed. Further study is therefore needed to determine whether the HHE syndrome is associated with complex partial seizures or predominantly unilateral tonic seizures.