This study compared the safety and efficacy of repeat percutaneous coronary intervention (PCI) using sirolimus-eluting stents (SESs) with conventional therapies for restenosis after drug-eluting stent placement. Fifty-five consecutive patients with 58 restenotic lesions (31 treated with SESs and 27 treated with paclitaxel-eluting stents) underwent PCI using SESs (33 lesions) or conventional therapies comprising cutting balloon angioplasty alone (11 lesions) or intracoronary brachytherapy (14 lesions). Baseline characteristics were similar for the 2 groups, except for greater edge involvement (75.8% vs 36.0%, p = 0.002) and less stent expansion (0.74 ± 0.17 vs 0.95 ± 0.21, p = 0.006) in the SES group than in the conventional group. The SES group achieved a greater postprocedural luminal gain than the conventional group (1.98 ± 0.50 vs 1.22 ± 0.48 mm, p <0.001). Follow-up angiography showed that late luminal loss (0.27 ± 0.56 vs 0.76 ± 0.84 mm, p = 0.021) and recurrent angiographic restenosis rate (3.6% vs 35.0%, p = 0.006) were lower in the SES group than in the conventional group. The repeated target lesion revascularization-free survival rates at 1 year were 96.7 ± 3.2% for the SES group and 91.7 ± 5.6% for the conventional group (p = 0.399). In conclusion, use of SESs was associated with a lower recurrent restenosis rate compared with conventional therapies.
Bibliographical noteFunding Information:
This study was partly supported by the CardioVascular Research Foundation, Seoul, Korea, and Grant 0412-CR02-0704-0001 from the Korea Health 21 R&D Project, Ministry of Health & Welfare, Seoul, Korea.
All Science Journal Classification (ASJC) codes
- Cardiology and Cardiovascular Medicine