Complex partial seizures. Clinical features and differential diagnosis.

Complex partial seizures are the most common seizure type in patients with partial epilepsy. Most complex partial seizures emanate from the temporal lobe; however, the seizures also may be extratemporal in origin. The clinical phenomenology may distinguish complex partial seizures from nonepileptic paroxysmal disorders and other seizure types. Physiologic and psychological disorders need to be considered in the differential diagnosis of seizure activity. Long-term EEG monitoring may be necessary for select patients to confirm the diagnosis of epilepsy and to classify appropriately seizure type. Carbamazepine and phenytoin are the antiepileptic drugs of choice in the management of complex partial seizures. Polypharmacy and use of cognitively impairing antiepileptic drugs may reduce patient compliance and further impair the quality of life of the patient with epilepsy. Finally, epilepsy surgery is an important alternative for the patient with intractable partial seizures.