A SEVERITY SCORE FOR PREOPERATIVE RISK-FACTORS AS RELATED TO MORBIDITY AND MORTALITY IN PATIENTS WITH CORONARY-ARTERY DISEASE UNDERGOING MYOCARDIAL REVASCULARIZATION SURGERY

This paper reviews the morbidity and mortality of preoperative risk factors for patients undergoing myocardial revascularization surgery for coronary artery disease and reviews a clinical severity scoring system for risk factors. Risk factors include severe ventricular dysfunction, congestive heart failure, prior myocardial infarction, urgent and emergency surgery, repeat surgery, vascular disease, renal dysfunction, combined coronary artery bypass grafting and valve procedures, diabetes, age, sex and body weight, preoperative anemia, respiratory function, surgical volume, and so forth.