title: Ambulatory cassette EEG in clinical practice.
abstract: We reviewed ambulatory cassette EEG (A/EEG) records of 500 patients. Epileptiform abnormalities, seizures, or both were detected in 87 patients (17.4%), including 22 who were not taking anticonvulsant drugs. Epileptiform abnormalities were found in 1.5% of patients with syncope and in none without a clear history of episodic complaints. Abnormalities were found in 5.1% of patients referred by nonneurologic physicians. Some clinical seizures were not accompanied by A/EEG change and some episodes were not seizures, despite detection of epileptiform abnormalities.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000553:Ambulatory Care; D002648:Child; D002675:Child, Preschool; D004569:Electroencephalography; D004827:Epilepsy / Q000188:drug therapy; D006801:Humans; D007223:Infant; D008875:Middle Aged; D010672:Phenytoin / Q000009:adverse effects / Q000627:therapeutic use; D012640:Seizures / Q000139:chemically induced / Q000175:diagnosis*
chemical_list: D010672:Phenytoin