Acute myocardial infarction associated with myocardial bridge and coronary artery vasospasm.
A 65-year-old man was admitted to our hospital with acute myocardial infarction (MI). Emergency coronary angiography showed no significant organic lesions, but a myocardial bridge was found at the mid-left anterior descending artery An acetylcholine provocation test revealed 90% spastic stenosis just proximal to the myocardial bridge. His acute MI could have been caused by both a coronary spasm and the myocardial bridge.
Sakuma
M
M
Department of Cardiology, Koshigaya Hospital, Dokkyo University School of Medicine, Saitama, Japan.
Kamishirado
H
H
Inoue
T
T
Ichihara
M
M
Takayanagi
K
K
Hayashi
T
T
Morooka
S
S
D000109:Acetylcholine; D000368:Aged; D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000150:complications* / Q000000981:diagnostic imaging; D003330:Coronary Vessel Anomalies / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000209:etiology*
D000109:Acetylcholine