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  • Title: Sirolimus- versus paclitaxel-eluting stents for coronary bifurcations intervention: a meta-analysis of five clinical trials.
    Author: Qian J, Chen Z, Ma J, Ge J.
    Journal: Catheter Cardiovasc Interv; 2012 Oct 01; 80(4):507-13. PubMed ID: 22045690.
    Abstract:
    BACKGROUNDS: Relative efficacy and safety of sirolimus-eluting stents (SES) compared with paclitaxel-eluting stents (PES) remains controversial. It is unknown whether there are different effect and safety in coronary bifurcation treatment between SES and PES. OBJECTIVES: The meta-analysis was performed to compare the clinical outcomes of SES and PES in coronary bifurcation intervention. METHODS: Five head-to-head clinical trials of SES versus PES in coronary bifurcation intervention were included. A total of 2,567 patients were involved in the meta-analysis. Mean follow-up period ranged from 6 to 35 months. The primary end points were the need for target lesion revascularization (TLR) and main-branch restenosis. Secondary end points were target vessel revascularization (TVR), cardiac death, major adverse cardiac events (MACE), and stent thrombosis. RESULTS: Compared with PES, SES significantly reduced the risk of TLR (5.3% vs. 10.6%, odds ratio (OR) 0.52; 95% confidence interval (CI) = 0.38-0.70, P < 0.001), main-branch restenosis (4.59% vs. 12.59%, OR 0.31; 95% CI = 0.18-0.55, P < 0.001) and TVR (7.05% vs. 12.57%, OR 0.58; 95% CI = 0.42-0.81, P = 0.001) in coronary bifurcation intervention. In addition, SES group also had a significantly lower incidence of MACE (8.20% vs. 14.13%, OR 0.58; 95% CI = 0.40-0.84, P = 0.004) than PES group. However, there were no statistical difference with respect to the incidence of cardiac death (1.64% vs. 1.09%, P = 0.19) and stent thrombosis (0.84% vs. 1.08%, P = 0.64) between SES and PES groups. CONCLUSIONS: Compared with PES, SES reduced the incidence of TLR, main-branch restenosis and MACE in coronary bifurcation intervention, while the risk of stent thrombosis was similar between SES and PES groups.
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