Ontario CABG Risk Score Calculator

Ontario CABG Risk Score: Explanation and Clinical Context The Ontario CABG Risk Score is a validated tool designed to estimate the risk of operative mortality in patients undergoing coronary artery bypass grafting surgery. It incorporates preoperative variables including age, sex, left ventricular ejection fraction (LVEF), history of myocardial infarction, urgency of surgery, chronic renal failure, chronic pulmonary disease, and peripheral vascular disease. By combining these clinical parameters into a logistic regression model, the score provides a predicted probability of in-hospital mortality.

This tool is particularly useful for preoperative risk stratification, aiding clinicians in counseling patients, optimizing perioperative management, and benchmarking surgical outcomes.