Angiographic evidence of myocardial squeezing accompanying tachyarrhythmia as a possible cause of myocardial infarction.
The coronary arteriogram of a 52-year-old man with Basedow's disease and who was suffering from myocardial infarction following rapid atrial fibrillation, showed severe myocardial squeezing without organic stenosis. Angiographically, the functional obstructive lesion was always observed both at systole and diastole during atrial pacing, 150 beats per minute, and suggests that myocardial squeezing may be the cause of myocardial infarction following tachyarrhythmia.
D001281:Atrial Fibrillation / Q000150:complications* / Q000503:physiopathology; D006321:Heart / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D009203:Myocardial Infarction / Q000209:etiology* / Q000503:physiopathology