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April 4, 1980

The Probability of Surviving Coronary Bypass Surgery: Five-Year Results From 1,718 Patients

JAMA. 1980;243(13):1341-1344. doi:10.1001/jama.1980.03300390025016

This study of 1,718 men with bypass surgery from 1970 to 1974 in Milwaukee has indicated that the following factors are significantly associated with five-year survival: left ventricular end-diastolic pressure (LVEDP), plasma cholesterol level, coronary occlusion score, age, and left ventricular function (LVF). The 31 men with a previous stroke had a high risk (five-year survival was 32%). To serve as a guide to patient risk, a logistic model is used to predict five-year survival. These probabilities are tabulated for all combinations of LVEDP, age, LVF, occlusion score, and plasma cholesterol level.

(JAMA 243:1341-1344, 1980)