Causes of sudden cardiac death in young athletes: the role of hypoperfusion.
The role of hypoperfusion in cases of sudden cardiac death of young athletes is discussed. The coronary index, a ratio of the coronary caliber and the myocardial mass, was estimated from postmortem coronary angiograms. The coronary index reflects the degree of myocardial blood supply. In each case, a decrease in the coronary index, in combination with fibrosis and necrosis of the myocardium, was revealed. We suggest that recurring myocardial necrosis developed as a result of hypoperfusion of the hypertrophic myocardium during physical overload.
Lesauskaite
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Kaunas Medical Academy, Institute of Cardiology, Lithuania.
Valanciute
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D000328:Adult; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000473:pathology / Q000503:physiopathology; D002423:Cause of Death; D017023:Coronary Angiography; D003326:Coronary Circulation; D003331:Coronary Vessels / Q000473:pathology / Q000503:physiopathology; D016757:Death, Sudden, Cardiac / Q000209:etiology* / Q000473:pathology; D005355:Fibrosis / Q000209:etiology; D006321:Heart / Q000503:physiopathology; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology; D009336:Necrosis; D013177:Sports