Published Online
on October 23, 2006

A more recent version of this article appeared on November 14, 2006

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Submitted on September 22, 2006
Revised on October 6, 2006
Accepted on October 13, 2006

Sirolimus-Eluting Stent Versus Paclitaxel-Eluting Stent for Patients With Long Coronary Artery Disease

Young-Hak Kim MD, PhD, Seong-Wook Park MD, PhD, Seung-Whan Lee MD, PhD, Duk-Woo Park MD, Sung-Cheol Yun PhD, Cheol Whan Lee MD, PhD, Myeong-Ki Hong MD, PhD, Hyun-Sook Kim MD, PhD, Jae-Ki Ko MD, PhD, Jae-Hyeong Park MD, PhD, Jae-Hwan Lee MD, PhD, Si Wan Choi MD, PhD, In-Whan Seong MD, PhD, Yoon Haeng Cho MD, Nae-Hee Lee MD, June Hong Kim MD, PhD, Kook-Jin Chun MD, PhD, Seung-Jung Park MD, PhD^*, for the Long-DES-II Study Investigators

From Asan Medical Center (Y.-H.K., S.-W.P., S.-W.L., D.-W.P., S.-C.Y., C.W.L., M.-K.H., S.-J.P.), University of Ulsan College of Medicine, Seoul, Korea; Chonbuk National University Hospital (H.-S.K., J.-K.K.), Jeonju, Korea; Chungnam National University Hospital (J.-H.P., J.-H.L., S.W.C., I.-W.S.), Daejeon, Korea; Soonchunhyang University Bucheon Hospital (Y.H.C., N.-H.L.), Soonchunhyang, Korea; and Pusan National University Hospital (J.H.K., K.-J.C.), Busan, Korea.

^* To whom correspondence should be addressed. E-mail: sjpark{at}amc.seoul.kr.

Background--Outcomes remain relatively unfavorable for stent-based coronary intervention of lesions with long diseased segments. This study compared sirolimus-eluting stents (SES) and paclitaxel-eluting stents (PES) for long coronary lesions.

Methods and Results--The present randomized, multicenter, prospective study compared the use of long (32 mm) SES with PES in 500 patients with long (25 mm) native coronary lesions. The primary end point of the trial was the rate of binary in-segment restenosis according to follow-up angiography at 6 months. The SES and PES groups had similar baseline characteristics. Lesion length was 33.9±11.6 mm in the SES group and 34.5±12.6 mm in the PES group (P=0.527). The in-segment binary restenosis rate was significantly lower in the SES group than in the PES group (3.3% versus 14.6%; relative risk 0.23; P<0.001). In-stent late loss of lumen diameter was 0.09±0.37 mm in the SES group and 0.45±0.55 mm in the PES group (P<0.001). In patients with restenoses, a pattern of focal restenosis was more common in the SES group than in the PES group (100% versus 53.3%, P=0.031). Consequently, SES patients had a lower rate of target-lesion revascularization at 9 months (2.4% versus 7.2%, P=0.012). The incidence of death (0.8% in SES versus 0% in PES, P=0.499) or myocardial infarction (8.8% in SES versus 10.8% in PES, P=0.452) at 9 months of follow-up was not statistically different between the 2 groups.

Conclusions--For patients with long native coronary artery disease, SES implantation was associated with a reduced incidence of angiographic restenosis and a reduced need for target-lesion revascularization compared with PES implantation.

Key words: coronary disease • stents • restenosis

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