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In order to compare the long-term clinical and angiographic outcomes after sirolimus-eluting stent (SES) and bare-metal stent (BMS) placement in severely calcified lesions using a rotablator under the widespread indication of SES, a nonrandomized examination of 312 consecutive lesions after successful implantation of a BMS (99 lesions in 84 patients; from January 2003) or SES (213 in 167; from September 2004) using a rotablator was conducted. The lesion-based primary endpoints (cardiac death and nonfatal recurrent myocardial infarction) and the secondary endpoint [binary restenosis (BR) (diameter stenosis &gt; 50%) at follow-up angiography] were retrospectively determined in August 2010. The incidence of primary endpoint in the SES group (2.3%; mean follow-up period of 1289 ± 526 days) was significantly lower than that in the BMS group (7.1%; P = 0.043; 1803 ± 887 days), although the several variables related to the endpoints were present in the SES group. Cox proportional hazard model analysis revealed that SES was not significantly related to a primary endpoint [hazard ratio of 0.42 (95% CI, 0.073-2.42; P = 0.33)]. The incidence of BR in the SES group (21.3%) was not significantly different from that in the BMS group (27.1%) (P = 0.33). Multivariate logistic regression analysis revealed that SES was not a significant predictor of BR [Odds ratio of 0.78 (95% CI, 0.41-1.51; P = 0.47)]. Thus, although the results of the present retrospective nonrandomized study demonstrate the long-term safety of SES for calcified lesions using a rotablator in daily practice, SES did not show a benefit for the angiographic outcomes compared to BMS.

international heart journal

Retrospective Comparison of Clinical and Angiographic Outcomes After Sirolimus-Eluting and Bare-Metal Stent Implantation in 312 Consecutive, Nonrandomized Severely Calcified Lesions Using a Rotablator