In-Stent Restenosis is Inhibited in a Bare Metal Stent Implanted Distal to a Sirolimus-Eluting Stent to Treat a Long De Novo Coronary Lesion With Small Distal Vessel Diameter

被引:6
作者
Obata, Jyun-ei [1 ]
Nakamura, Takamitsu [1 ]
Kitta, Yoshinobu [1 ]
Saito, Yukio [1 ]
Sano, Keita [1 ]
Fujioka, Daisuke [1 ]
Kawabata, Ken-ichi [1 ]
Kugiyama, Kiyotaka [1 ]
机构
[1] Univ Yamanashi, Interdisciplinary Grad Sch Med & Engn, Dept Internal Med 2, Chuo City 4093898, Japan
基金
日本学术振兴会;
关键词
coronary artery disease (CAD); percutaneous coronary intervention (PCI); restenosis (RSTN); quantitative coronary angiography (QCA); BX VELOCITY STENT; SHEAR-STRESS; EFFICACY; PATTERNS; OUTCOMES; SAFETY; FLOW;
D O I
10.1002/ccd.24841
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
ObjectivesThis study examined whether sirolimus-eluting stent (SES) implantation exerts an antiproliferative action on a bare metal stent (BMS) placed distally in the same coronary artery. BackgroundDiffusion of sirolimus into flowing coronary blood may cause accumulation of this drug in the coronary bed beyond the distal edge of an SES. MethodsWe analyzed data from 115 consecutive patients with ischemic heart disease who were treated with two overlapping stents without a gap in the same coronary artery for a long de novo lesion. The distal stent was a 2.25 mm BMS in all patients, and the proximal stent was an SES in 73 patients (SES-BMS group) and a BMS in 42 patients (BMS-BMS group). Quantitative coronary angiography (QCA) and intravascular ultrasound (IVUS) were performed at stent implantation and 8 months later. ResultsClinical and procedural variables were comparable between the two groups. QCA and IVUS showed that the SES-BMS group had less luminal late loss and a lower percent of in-stent volume obstruction in the distal BMS compared with the BMS-BMS group. Furthermore, compared with the BMS-BMS group, the SES-BMS group had less in-stent restenosis (23.3 vs. 54.8%, P<0.0005) and target lesion revascularization (21.9 vs. 50.0%, P<0.005). ConclusionsSES implantation just proximal to a BMS inhibits neointimal proliferation in the BMS, when both stents are implanted in the same coronary artery to treat a de novo lesion. (c) 2013 Wiley Periodicals, Inc.
引用
收藏
页码:E777 / E787
页数:11
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