title: Long-term survival of more than 2,000 patients after coronary artery bypass grafting.
abstract: Among 2,004 patients who underwent their first coronary artery bypass graft operation between January 1970 and December 1980 without concomitant valve replacement or aneurysmectomy, life-table survival was 89% at 5 years and 80% at 8 years after surgery. In a multivariate Cox model analysis, the independent correlates of long-term survival were emergent operation with cardiogenic shock (multivariate mortality rate ratio [RR] = 14.0), use of a postoperative intraaortic balloon pump (RR = 3.9), ejection fraction less than 50% (RR = 2.4), preoperative history of congestive heart failure (RR = 2.2), cardiopulmonary bypass time (RR = 1.4 for each 30-minute increment), uncorrected mitral regurgitation (RR = 1.5 for each increment of angiographic gradation), left main coronary artery narrowing (RR = 1.7) and diabetes (RR = 1.6). After controlling for these factors, age, sex and the percentage of narrowings that were bypassed were not independent correlates of long-term survival.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001026:Coronary Artery Bypass; D003327:Coronary Disease / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D003331:Coronary Vessels / Q000473:pathology; D048909:Diabetes Complications; D005260:Female; D006333:Heart Failure / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications; D011446:Prospective Studies; D012306:Risk; D012737:Sex Factors; D013223:Statistics as Topic; D013997:Time Factors