"Variant" angina: one aspect of a continuous spectrum of vasospastic myocardial ischemia. Pathogenetic mechanisms, estimated incidence and clinical and coronary arteriographic findings in 138 patients.

Adult Angina Pectoris/diagnosis Angina Pectoris, Variant/diagnosis,epidemiology,etiology Angiocardiography Arrhythmias, Cardiac/epidemiology Coronary Angiography Coronary Care Units Coronary Circulation Coronary Disease/etiology Death, Sudden/etiology Electrocardiography Exercise Test Female Heart/diagnostic imaging Heart Conduction System/physiopathology Hemodynamics Humans Male Middle Aged Monitoring, Physiologic Mortality Myocardial Infarction/epidemiology Radionuclide Imaging Risk Spasm/complications