Culotte stenting technique in coronary bifurcation disease: angiographic follow-up using dedicated quantitative...

Area of Science:

• Cardiology
• Interventional Cardiology
• Vascular Medicine

Background:

• Percutaneous coronary intervention for bifurcation lesions is complex.
• The culotte technique is a common two-stent strategy for these challenging cases.
• Dedicated bifurcation analysis systems improve quantitative coronary angiography.

Purpose of the Study:

• To evaluate the clinical and angiographic outcomes of the culotte stenting technique.
• To assess the efficacy and safety of culotte stenting in a real-world setting.
• To identify predictors of restenosis after culotte stenting.

Main Methods:

• Prospective enrollment of patients undergoing culotte stenting with drug-eluting stents.
• Classification of lesions using the Medina classification.
• Clinical and angiographic follow-up up to 12 months, utilizing a dedicated bifurcation analysis system.

Main Results:

• High procedural success (100%) in 134 lesions (92.5% true bifurcations).
• Median late lumen loss varied by vessel segment (0.10 mm proximal MV, 0.34 mm distal MB, 0.30 mm SB).
• 12-month target lesion revascularization rate was 21%, with a 1.5% stent thrombosis incidence.

Conclusions:

• Culotte stenting demonstrates high procedural success and a low risk of restenosis.
• The technique is associated with favorable safety outcomes, including low stent thrombosis rates.
• Predictors of restenosis include age, bifurcation angle, and lesion severity.