Seventy-two consecutive patients with complete observations were studied at the Heart Institute (InCór) between January and December 1988, to determine the main risk factors of nosocomial morbidity and mortality of elderly coronary patients (>65 years) submitted to elective isolated myocardial revascularization. Clinical, radiologic, hemodynamic, operative and post-operative factors were included in the protocol. The results were analysed through Pearson's X² test and Fisher's Exact Test using the SPSS (Statistical Package for Social Science). Among the analyzed factors, smoking habit, number of impaired coronary vessels, duration of extracorporeal circulation, time of aortic clamping, total number of performed grafts, presence of the coronary-mammary anastomisis and index of the left ventricular wall movement present statistical significance.
myocardial revascularization; myocardial revascularization