Influence of diabetes mellitus on long-term outcomes of patients with unprotected left main coronary artery disease treated with either drug-eluting stents or coronary artery bypass grafting

International Heart Journal
Xianpeng YuFang Chen

Abstract

Whether the effect of diabetes on patients with unprotected left main coronary artery (ULMCA) disease differs according to different strategies of revascularization was unknown. This study was conducted to evaluate the impact of diabetes on patients with ULMCA disease treated with either percutaneous coronary intervention (PCI) or coronary-artery bypass grafting (CABG).A total of 922 patients with ULMCA disease who received drug-eluting stent (DES) (n = 465) implantation or underwent CABG (n = 457) were retrospectively analyzed. We compared the effects of these 2 treatments on clinical outcomes (death, myocardial infarction, stroke, repeat revascularization, and the composite of death, myocardial infarction, or stroke), according to diabetic status.During the median follow-up of 7.1 years (interquartile range, 5.3 to 8.2 years), no difference was found between PCI and CABG in the adjusted occurrence of death (P = 0.112) and the composite endpoints of death, myocardial infarction, and stroke (P = 0.235). Significantly higher incidence of repeat revascularization (P < 0.001) was observed in the DES group, whereas the CABG group had a significantly higher rate of stroke (P = 0.001). These trends were consistent in both diabetic an...Continue Reading

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