1. Spontaneous Coronary Artery Dissection: Pathophysiological Insights From Optical Coherence Tomography

    Spontaneous Coronary Artery Dissection: Pathophysiological Insights From Optical Coherence Tomography

    Objectives This study used optical coherence tomography to investigate the mechanism of false lumen (FL) formation in spontaneous coronary artery dissection (SCAD) by studying: 1) differences between fenestrated and nonfenestrated SCAD; 2) vasa vasorum density; and 3) light attenuation characteristics of the FL. Background SCAD is an increasingly recognized cause of acute coronary syndromes , characterized by FL formation and compression of the true lumen (TL). The mechanisms underlying FL formation remain poorly understood. Methods A total of 65 SCAD patients (68 vessels) who underwent acute OCT imaging as part of routine clinical care were included. Images were classified by the ...

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