Diagnostic criteria and prognosis of perioperative myocardial infarction following coronary bypass.

摘要: To evaluate the incidence of perioperative myocardial infarction (PMI), serial determinations serum creatine kinase isoenzymes (CK-MB), electrocardiograms (ECGs), and pyrophosphate scans were performed in 112 patients undergoing isolated coronary bypass grafting. An abnormal increase total CK-MB liberation (Q greater than 9.8 IU ml-1 kg) occurred 25 (22.3%), new Q waves present at ECG 10 (8.9%), scan was 13 (11.6%). All tests negative 81 (72.3%). A diagnosis PMI established if confirmed by least two techniques; this made 15 (13.4%). The pattern with a PMI, characterized high peak prolonged release, significantly different from that without PMI. most important predictive factor for duration ischemia during operation. Patients who had more frequent early complications, their prognosis 2 years showed 51% probability remaining free cardiac events as compared to 96% group (p less 0.001). is not benign complication bypass, its detection appears improved combination diagnostic tests.