( 3 ) although clinical and coronary angiographic features were of limited use in predicting major cardiac complications , most of the patients who had an uncomplicated course ( 11 of 14 patients , 79 % ) had either less than 50 % fixed coronary artery luminal diameter narrowing ( can ) or coronary artery bypass graft operations , the majority of patients with less than 50 % can ( 8 of 11 patients , 73 % ) had no major cardiac complications , and myocardial infarction or death usually occurred during periods of increased angina pectoris .
C0205042
coronary artery
C0010055
coronary artery bypass graft operations