Long-term survival of patients with ischemic cardiomyopathy treated by coronary artery bypass grafting versus medical therapy.

摘要: Background We prospectively applied the Surgical Treatment of Ischemic Cardiomyopathy trial entry criteria to an observational database determine whether coronary artery bypass grafting (CABG) decreases mortality compared with medical therapy (MED) for patients disease and depressed left ventricular ejection fraction. Methods This was a retrospective, observational, cohort study collected data from Duke Databank Cardiovascular Disease. Long-term main outcome measure. Between January 1, 1995, July 31, 2009, 86,874 underwent cardiac catheterization suspected ischemic heart were evaluated inclusion in analysis. Results A total 2,624 found have fraction less than 0.35, amenable CABG, no stenosis greater 50%. After exclusions including ongoing Canadian Society class III angina acute myocardial infarction, 763 included propensity score analysis, 624 who received MED 139 CABG. Adjusted curves constructed those three quintiles most likely receive The diverged early, risk-adjusted rates at 5 years 46% versus 29% survival benefit CABG over continued through 10 follow-up (hazard ratio, 0.63; 95% confidence interval, 0.45 0.88). Conclusions Among propensity-matched, risk-adjusted, disease, 50%, is associated advantage follow-up.