Ventricular tachycardia manifested as tonic seizure.

Nonepileptic seizures are sudden changes in behavior that resemble epileptic seizures but are not associated with the typical neurophysiological changes that characterize epileptic seizures. Cardiovascular disorders may cause loss of consciousness complicated by abnormal movements due to generalized cerebral hypoxia, leading to the initial impression of seizure. We report a case where a patient suffered from frequent loss of consciousness together with generalized tonic postures manifesting as leg extension, arm flexion or extension and upward gazing. These episodes were confirmed to be nonepileptic and caused by ventricular tachycardia.