Plaque Morphology Predictors of Side Branch Occlusion After Main Vessel Stenting in Coronary Bifurcation Lesions Optical Coherence Tomography Imaging Study
Side branch (SB) occlusion remains a major complication of bifurcation lesion treatment. Although plaque and carina shift are suggested as mechanisms of SB occlusion (1) , little is known about underlying plaque morphology and composition of the main vessel (MV) and its potential impact on SB occlusion after MV stenting. Optical coherence tomography (OCT) allows precise evaluation of plaque characteristics, and dedicated bifurcation 3-dimensional (3D) quantitative coronary angiography (QCA) software permits highly accurate lesion assessment (2) . The primary aim of this study was to identify the predictors of SB occlusion after MV stenting by OCT and dedicated bifurcation 3D-QCA.