Abstract
Patients with diabetes mellitus (DM) have more severe CAD and higher mortality in acute coronary syndrome (ACS) than patients without DM. The optimal mode of revascularization-coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI)-remains controversial in this setting. For patients with DM and ST-segment elevation myocardial infarction, prompt revascularization of the culprit artery via PCI is generally preferable. In non-ST-elevation ACS, the decision on mode of revascularization is more challenging. Trials comparing CABG with percutaneous transluminal coronary angioplasty, bare metal stents, and first-generation drug-eluting stents in DM patients with multivessel have demonstrated decreased mortality in those receiving CABG. On the other hand, trials and retrospective analyses comparing CABG to PCI with second-generation drug-eluting stents have not shown a statistically significant mortality benefit favoring CABG. This potentially narrowed that gap between CABG and PCI requires further investigation.
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