Association of transient abnormal Q-waves during exercise testing with a stenosis of the main stem of the left coronary artery.
Transient electrocardiographic changes resembling acute myocardial infarction, with Q-waves and ST-segment elevation, have been reported in a variety of clinical situations in which evidence for acute myocardial necrosis was not apparent. Such electrocardiographic changes resolved to normal within minutes. We report a case in which exercise testing induced a painless reversible electrocardiographic abnormality identical to acute anterior myocardial infarction, and subsequent angiography revealed a severe stenosis in the proximal left coronary artery. We suggest that patients presenting with this type of electrocardiographic exercise response should proceed to urgent coronary angiography.
West
J N
JN
General Hospital, Birmingham, U.K.
Bennett
M R
MR
Pentecost
B L
BL
D003251:Constriction, Pathologic; D003327:Coronary Disease / Q000473:pathology* / Q000503:physiopathology; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D008297:Male; D008875:Middle Aged