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Poor Long-Term Survival in Patients With Moderate Aortic Stenosis From Focal Lipid Storage to Systemic Inflammation Dapagliflozin in Patients with Heart Failure and Reduced Ejection Fraction Association of Cardiovascular Disease With Respiratory Disease Transcatheter aortic-valve replacement with a self-expanding prosthesis 2019 ACC/AHA/ASE Advanced Training Statement on Echocardiography (Revision of the 2003 ACC/AHA Clinical Competence Statement on Echocardiography): A Report of the ACC Competency Management Committee Heart Failure With Improved Ejection Fraction-Is it Possible to Escape One’s Past? Aliskiren, Enalapril, or Aliskiren and Enalapril in Heart Failure Is Cardiac Diastolic Dysfunction a Part of Post-Menopausal Syndrome? Clinical Risk Factors and Atherosclerotic Plaque Extent to Define Risk for Major Events in Patients Without Obstructive Coronary Artery Disease: The Long-Term Coronary Computed Tomography Angiography CONFIRM Registry

Original Research2018 Mar 23. doi: 10.1253/circj.CJ-17-0921.

JOURNAL:Circ J. Article Link

Effect of Side Branch Predilation in Coronary Bifurcation Stenting With the Provisional Approach - Results From the COBIS (Coronary Bifurcation Stenting) II Registry

Lee SH, Song YB, Lee JM et al. Keywords: Bifurcation; Percutaneous coronary intervention; Side branch predilation

ABSTRACT


BACKGROUND - Whether side branch (SB) predilation before main vessel (MV) stenting is beneficial is uncertain, so we investigated the effects of SB predilation on procedural and long-term outcomes in coronary bifurcation lesions treated using the provisional approach.Methods and Results:A total of 1,083 patients with true bifurcation lesions undergoing percutaneous coronary intervention were evaluated. The primary outcome was a major adverse cardiovascular event (MACE): cardiac death, myocardial infarction, or target lesion revascularization. SB predilation was performed in 437 (40.4%) patients. Abrupt (10.5% vs. 11.3%; P=0.76) or final SB occlusion (2.7% vs. 3.9%; P=0.41) showed no differences between the predilation and non-predilation groups. The rates of angiographic success (69.1% vs. 52.9%, P<0.001) and SB stent implantation (69.1% vs. 52.9%, P<0.001) were significantly higher in the predilation group. During a median follow-up of 36 months, we found no significant difference between the groups in the rate of MACE (9.4% vs. 11.5%; P=0.67) in a propensity score-matched population. In subgroup analysis, patients with minimal luminal diameter of the parent vessel ≤1 mm benefited from SB predilation in terms of preventing abrupt SB occlusion (P for interaction=0.04).


CONCLUSIONS - For the treatment of true bifurcation lesions, SB predilation improved acute angiographic and procedural outcomes, but could not improve long-term clinical outcomes. It may benefit patients with severe stenosis in the parent vessel.