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GW24-e3192 A novel culotte technique in treatment of true coronary bifurcation lesions: efficacy and safety of double kissing mini-culotte stenting
  1. Fan Lin,
  2. Lianglong Chen
  1. Department of Cardiology, Fujian Medical University Union Hospital, Fuzhou, China

Abstract

Objectives The conventional culotte stenting remains not to be widely used for treating coronary bifurcation lesions (CBLs) due to the potential risk of intra-procedural vessel occlusion, requirement of similar branch size and relatively higher rate of restenosis of the side branch (SB). To evaluated efficacy and safety of a novel culottestenting, double kissing mini-culotte stenting (DK mini-culotte) used in patients with true CBLs.

Methods A total of 45 consecutive patients with true CBL according to Medina’s classification were included in this study for DK mini-culotte stenting, which was characterised by stenting the smaller SB first, mini-protrusion (1–2 mm) of the first stent into the parent vessel, and performing double-balloon kissing inflation two times. The immediate and 9-month outcomes were prospectively evaluated.

Results The immediate angiographic success rate was 100% per lesions or per patients, with 100% success of final double-balloon kissing inflation. The procedural time was 41.2 ± 13.7 minutes and the fluoroscopy time was 21.6 ± 8.7 minutes. Clinical follow up was completed in all patients and angiographic follow up in 44 patients (97.8%). The clinical success rate was 95.6%. There were no all-cause death, myocardial infarction, and in-stent thrombosis. At 9 months, the defined restenosis was found only at 2 sites from 2 patients (4.4%), one of which underwent target lesion revascularisation due to the edge restenosis of main branch (MB). Quantitative coronary angiography data showed that late lumen loss was acceptable with (0.10 ± 0.09) mm for the parent vessel, (0.17 ± 0.15) mm for the MB and (0.22 ± 0.26) mm for the SB.

Conclusions DK mini-culotte technique for treatment of true BLs was technically feasible and was associated with highangiographic and procedural success, and optimal 9-month outcomes.

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