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Long-term outcomes of bifurcation lesions after implantation of drug-eluting stents with the "mini-crush technique"

Catheterization and Cardiovascular Interventions, ISSN: 1522-1946, Vol: 69, Issue: 7, Page: 976-983
2007
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Article Description

Objectives: To evaluate clinical and angiographic long-term outcome of "the mini-crush" technique for treating bifurcation lesions. Background: Despite proven efficacy of drug-eluting stent (DES) within most lesions subsets, bifurcation lesions continue to exhibit high restenosis rate using current DES stenting technique. Methods: We report a new stenting technique which was employed in 45 consecutive patients (52 lesions) between April 2004 and July 2005 to treat true bifurcation lesions using DES in both branches. Results: Using this technique procedural success was obtained in 100% of cases, without complications and with excellent angiographic result in 96.1% and 98.1% of main vessel and side branch. Preprocedure reference vessel diameter and minimal lumen diameter (MLD) were 2.68 ± 0.48 and 0.90 ± 0.55 mm for the main branch, respectively and 2.28 ± 0.34 and 1.14 ± 0.47 mm for the side branch, respectively. Postprocedure MLD was 2.56 ± 0.39 mm for the main branch and 2.16 ± 0.29 mm for the side branch. There were no in-hospital major adverse cardiac events (MACE). At 72 days after procedure there was one case of side branch stent thrombosis (2.2%), which resulted in non Q-wave MI. Angiographic follow up was obtained in 100% of patients at 7.5 ± 1.3 months. Target lesion revascularization (TLR) was 12.2%; no death and Q-wave MI were observed; reference vessel diameter and MLD for the main branch were 2.79 ± 0.51 and 1.99 ± 0.65 mm respectively and for the side branch 2.28 ± 0.40 and 1.63 ± 0.48 mm respectively. Restenosis rate in the main branch was 12.2% while in the side branch was 2.0%. Conclusions: In-hospital outcome indicates that the mini-crush technique for bifurcation lesions with DES can be easily performed. It provides very low total MACE rate and restenosis at 8-month follow-up. These results confirmed the advantage of this specific technique to give complete coverage of the ostium of the side branch using two stents technique. © 2007 Wiley-Liss, Inc.

Bibliographic Details

Galassi, Alfredo R; Colombo, Antonio; Buchbinder, Maurice; Grasso, Carmelo; Tomasello, Salvatore D; Ussia, Gian P; Tamburino, Corrado

Wiley

Medicine

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