Clinical and Angiographic Outcomes With Sirolimus-Eluting Stent for Coronary Bifurcation Lesions : The J-PMS Study

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Background: Long-term outcomes of patients with bifurcated lesions and the restenotic response of the side branches after sirolimus-eluting stent (SES) implantation, comparing 1-stent with 2-stent treatment, are still under discussion. Methods and Results: Japan Post-Marketing Surveillance Registry (J-PMS) is a prospective registry designed to evaluate the safety and efficacy of the SES in routine clinical practice. Angiograms of 1,063 patients with 1,250 lesions were analyzed at the independent core lab. Of these, 324 patients with bifurcation lesions were enrolled. Clinical endpoints were assessed at 3 years. Both main and side branches were evaluated by quantitative coronary angiography at post-procedure (n=349) and 8-month follow up (n=293). Two-stent treatment was performed in 12% of the cases. In-segment restenosis rates at 8 months were 25.6% in the side branch, but newly developed restenosis was seen in only 6.8%. Late loss at the carina of the side branch was -0.11mm in the 1-stent group. Major adverse cardiovascular events rate was 18.3% at 3 years. Target-lesion revascularization rate up to 3 years was 21.6% in the 2-stent group and 8.7% in the 1-stent group (P=0.037). Stent thrombosis occurred in 6 cases (2.0%) until 3 years. Of these, 4 cases were treated with 2-stent (10.81% vs. 0.76% in 1-stent, P=0.003, respectively). Conclusions: In a real-world setting, treatment of coronary bifurcation lesions using SES demonstrated favorable long-term outcomes as long as the side branch was not stented. (Circ J 2011; 75: 306-314)
2011-01-25

Clinical and Angiographic Outcomes With Sirolimus-Eluting Stent for Coronary Bifurcation Lesions : The J-PMS Study

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