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  • Title: Long-term outcomes following drug-eluting stent implantation in unprotected left main bifurcation lesions.
    Author: Ge L, Cosgrave J, Iakovou I, Qian JY, Agostoni P, Sangiorgi GM, Airoldi F, Michev I, Chieffo A, Corvaja N, Colombo A, Ge JB.
    Journal: Chin Med J (Engl); 2007 Apr 05; 120(7):545-51. PubMed ID: 17442200.
    Abstract:
    BACKGROUND: The safety and efficacy of drug-eluting stents (DES) implantation in unprotected left main (LM) bifurcation lesions has yet to be determined. The aim of the present report was to evaluate the long-term outcome following implantation of DES in unprotected LM bifurcation lesions. METHODS: We identified 70 consecutive patients treated with DES in unprotected LM bifurcation lesions from April 2003 to January 2005. Of them, 42 patients were treated with sirolimus-eluting stent (SES) and 28 patients were treated with paclitaxel-eluting stent (PES). RESULTS: Stents to the left anterior descending and to the circumflex were implanted in 62 patients. During 1-year follow-up, 3 (4.3%) patients died of cardiac causes. One of them had myocardial infarction and adjudicated as possibly due to stent thrombosis. Angiographic follow-up was available in 80% of patients. The per lesion restenosis rate was 13.4% in the entire cohort, of which 10.7% occurred in lesions treated with SES and 16.1% in those treated with PES (P = 0.58). All restenosis was focal and occurred in the lesions treated with a stent with stent size to post-procedural reference vessel diameter ratio < 1.0 (17.6% vs 0, P = 0.04). The per patient target lesion revascularization rate at 1 year was 17.1%. One year survival free from major adverse cardiac events was 77.1%. CONCLUSIONS: Treatment of LM bifurcation lesions using DES is a safe and feasible way with a low one-year mortality. The need for revascularization in 17% of patients demands for improvement.
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