Abstract
We compared the clinical efficacy of paclitaxel-eluting stents (PESs) and sirolimus-eluting stents (SESs) in a contemporary cohort of patients who had complex lesions. We collected data on 9-month outcomes in 529 patients (281 in the PES group and 248 in the SES group) whose de novo lesions were treated with drug-eluting stents. The end point was per-patient in-hospital and follow-up major adverse cardiac events, which were defined as a composite of death, myocardial infarction, and target vessel revascularization, including target lesion revascularization. There were no in-hospital deaths or repeat revascularizations; however, 5.7% of the PES group and 2% of the SES group developed a myocardial infarction (p = 0.04). At a median follow-up of 10.6 months, the rate of major adverse cardiac events was similar between groups (18.1% vs 21%, adjusted hazard ratio 0.85, 95% confidence interval 0.57 to 1.25), without any difference in the occurrence of death or myocardial infarction. Diabetes and total stent length were independent predictors of major adverse cardiac events. Propensity analysis confirmed the similarity between devices (hazard ratio 0.87, 95% confidence interval 0.62 to 1.25). Most restenoses were focal and only 2 patients required surgical revascularization. In conclusion, implantation of drug-eluting stents in complex lesions was associated with favorable results and most patients remained free from surgical revascularization at follow-up. Overall, the 2 available stent platforms had similar performance characteristics.
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