title: Transient global amnesia: clinical characteristics and prognosis.
abstract: We studied the clinical characteristics of transient global amnesia (TGA) in 277 patients with an average follow-up of 80 months. The syndrome occurred most frequently after age 50. There was a history of migraine in 14.1% and cerebrovascular diseases in 11.2% of patients, but these conditions were usually not temporally linked to TGA. Characteristic antecedent events and activity such as exertion existed in 33.4%. The incidence of TGA was 5.2 per 100,000 per year in Rochester, MN. Although 23.8% of the patients had recurrent episodes, they were not at increased risk for subsequent stroke.
mesh_terms: D000368:Aged; D000647:Amnesia / Q000150:complications / Q000175:diagnosis / Q000209:etiology*; D002561:Cerebrovascular Disorders / Q000150:complications; D005260:Female; D005500:Follow-Up Studies; D006331:Heart Diseases / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000150:complications; D009460:Neurologic Examination; D011379:Prognosis; D012640:Seizures / Q000150:complications; D013923:Thromboembolism / Q000150:complications