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The Annals of Thoracic Surgery, Vol 26, 208-214, Copyright © 1978 by The Society of Thoracic Surgeons
JE Codd, RD Wiens, GC Kaiser, HB Barner, DH Tyras, JG Mudd and VL Willman
The late suquelae of myocardial injury occurring at the time of direct
myocardial revascularization are unknown. Fifty of 500 consecutive patients
undergoing aortocoronary bypass grafting developed both
electrocardiographic and enzymatic evidence of myocardial injury. They were
matched with 50 patients of similar age, sex, history of previous
infarction, severity of angina, degree of coronary arteriosclerosis, and
level of ventricular function as determined by preoperative angiographic
studies. The conduct of the operation was identical in each group except
for prolongation of total cross-clamp time in those patients with
myocardial injury. The total number of vessels grafted, the conduit used,
and the operative mean graft flow were similar. Results of treadmill stress
testing at 24 to 36 months were not significantly different between groups.
Angina status, long-term survival, graft patency, and ventricular function
were not adversely affected by intraoperative myocardial injury. However,
postoperative ventricular function and stress test performance were related
to graft patency.
ARTICLES
Late sequelae of perioperative myocardial infarction
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