The Lee index or “revised cardiac risk” index  was designed to predict postoperative myocardial infarction, pulmonary edema, ventricular fibrillation or cardiac arrest, and complete heart block. This risk index comprises six variables: high-risk type of surgery, history of ischemic heart disease, history of congestive heart failure (HF), history of cerebrovascular disease, preoperative treatment with insulin, and preoperative creatinine >2 mg/dL. Calculate your risk of heart disease if you are male. Take your point total and then find the corresponding percentage. This percentage represents the risk that you have of developing heart disease or of experiencing a cardiac event in the next 10 years. The points-risk relationship is different for males and females.