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Randomized study on simple versus complex stenting of coronary artery bifurcation lesions: the Nordic bifurcation study Coronary CT Angiographic and Flow Reserve-Guided Management of Patients With Stable Ischemic Heart Disease The Natural History of Nonculprit Lesions in STEMI: An FFR Substudy of the Compare-Acute Trial Treatment of Very Small De Novo Coronary Artery Disease With 2.0 mm Drug-Coated Balloons Showed 1-Year Clinical Outcome Comparable With 2.0 mm Drug-Eluting Stents Contemporary techniques in percutaneous coronary intervention for bifurcation lesions Influence of Local Myocardial Damage on Index of Microcirculatory Resistance and Fractional Flow Reserve in Target and Nontarget Vascular Territories in a Porcine Microvascular Injury Model Pulmonary Artery Denervation: A New, Long-Awaited Interventional Treatment for Combined Pre- and Post-Capillary Pulmonary Hypertension? A sirolimus-eluting bioabsorbable polymer-coated stent (MiStent) versus an everolimus-eluting durable polymer stent (Xience) after percutaneous coronary intervention (DESSOLVE III): a randomised, single-blind, multicentre, non-inferiority, phase 3 trial Percutaneous Repair or Medical Treatment for Secondary Mitral Regurgitation: Outcomes at 2 years Reply: Will Pulmonary Artery Denervation Really Have a Place in the Armamentarium of the Pulmonary Hypertension Specialist?

Clinical Trial2014 Mar;7(3):255-63.

JOURNAL:JACC Cardiovasc Interv. Article Link

Differential prognostic impact of treatment strategy among patients with left main versus non-left main bifurcation lesions undergoing percutaneous coronary intervention: results from the COBIS (Coronary Bifurcation Stenting) Registry II

Song YB, Hahn JY, Gwon HC et al. Keywords: angioplasty; bifurcation lesions; drug-eluting stent(s); left main

ABSTRACT


OBJECTIVES - The authors sought to investigate whether the impact of treatment strategies on clinical outcomes differed between patients with left main (LM) bifurcation lesions and those with non-LM bifurcation lesions.


BACKGROUND - Few studies have considered anatomic location when comparing 1- and 2-stent strategies for bifurcation lesions.

METHODS - We compared the prognostic impact of treatment strategies on clinical outcomes in 2,044 patients with non-LM bifurcation lesions and 853 with LM bifurcation lesions. The primary outcome was target lesion failure (TLF) defined as a composite of cardiac death, myocardial infarction (MI), and target lesion revascularization.

RESULTS - The 2-stent strategy was used more frequently in the LM bifurcation group than in the non-LM bifurcation group (40.3% vs. 20.8%, p < 0.01). During a median follow-up of 36 months, the 2-stent strategy was not associated with a higher incidence of cardiac death (hazard ratio [HR]: 1.24; 95% confidence interval [CI]: 0.72 to 2.14; p = 0.44), cardiac death or MI (HR: 1.12; 95% CI: 0.58 to 2.19; p = 0.73), or TLF (HR: 1.39; 95% CI: 0.99 to 1.94; p = 0.06) in the non-LM bifurcation group. In contrast, in patients with LM bifurcation lesions, the 2-stent strategy was associated with a higher incidence of cardiac death (HR: 2.43; 95% CI: 1.05 to 5.59; p = 0.04), cardiac death or MI (HR: 2.09; 95% CI: 1.08 to 4.04; p = 0.03), as well as TLF (HR: 2.38; 95% CI: 1.60 to 3.55; p < 0.01). Significant interactions were present between treatment strategies and bifurcation lesion locations for TLF (p = 0.01).

CONCLUSIONS - The 1-stent strategy, if possible, should initially be considered the preferred approach for the treatment of coronary bifurcation lesions, especially LM bifurcation lesions. (Korean Coronary Bifurcation Stenting [COBIS] Registry II; NCT01642992).

Copyright © 2014 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.