Are drug-eluting stents indicated in large coronary arteries? Insights from a multi-centre percutaneous coronary intervention registry

International Journal of Cardiology
Bryan P YanMelbourne Interventional Group Investigators

Abstract

Restenosis rates are low in large coronary vessels >/=3.5 mm after bare-metal stent (BMS) implantation. The benefit of drug-eluting stents (DES) in large vessels is not established. We aim to assess clinical outcomes after deployment of BMS compared to DES in patients with large coronary vessels >/=3.5 mm. We analysed 672 consecutive patients undergoing percutaneous coronary interventions with >/=3.5 mm stent implantation in native coronary artery de-novo lesions from the Melbourne Interventional Group (MIG) registry. Baseline characteristics, 30-day and 12-month outcomes of patients receiving BMS were compared to DES. Multivariate analysis was performed to identify predictors of major adverse cardiac events [MACE, consisting of death, myocardial infarction (MI) and target vessel revascularisation (TVR)]. Of the 672 PCIs performed in 844 lesions, DES was implanted in 39.5% (n=333) and BMS in 60.5% (n=511) of lesions. Patients who received DES compared to BMS were older, more likely to be diabetic, had left ventricular dysfunction <45% or complex lesions. Significantly fewer patients who presented with ST-elevation MI received DES compared to BMS. There were no significant differences in 12-month mortality (0.5 vs. 2.9%, p=0.07)...Continue Reading

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