title: Vasospastic coronary occlusion associated with a myocardial bridge.
abstract: A 53-year-old woman was admitted with unstable angina. Acute coronary angiography showed myocardial bridging and total occlusion of the left anterior descending artery in the middle one-third of its course. The occlusion was completely relieved by intracoronary administration of nitroglycerin. The occurrence of coronary spasm may explain angina and myocardial infarction in symptomatic patients with myocardial bridges.
mesh_terms: D000787:Angina Pectoris / Q000209:etiology; D001157:Arterial Occlusive Diseases / Q000150:complications / Q000000981:diagnostic imaging* / Q000188:drug therapy; D017023:Coronary Angiography; D003327:Coronary Disease / Q000150:complications / Q000000981:diagnostic imaging* / Q000188:drug therapy; D003329:Coronary Vasospasm / Q000150:complications* / Q000188:drug therapy / Q000209:etiology; D005260:Female; D006801:Humans; D007269:Injections, Intra-Arterial; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology; D005996:Nitroglycerin / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D005996:Nitroglycerin