Plaque vulnerability at non-culprit lesions in obese patients with coronary artery disease: Frequency-domain optical coherence tomography analysis
Background Obesity is associated with adverse atherosclerotic cardiovascular events. While various metabolic abnormalities associated with obesity promote plaque formation, the morphological phenotype of atherosclerotic plaque has not been well characterized in the setting of obesity. Frequency-domain optical coherence tomography (FD-OCT) enables in vivo visualization of plaque microstructures associated with vulnerability. We characterized plaque microstructures in obese patients. Methods FD-OCT imaging was performed in 308 patients with coronary artery disease undergoing percutaneous coronary intervention. Patients were stratified according to the presence or absence of obesity (body mass index > 30 kg/m 2 ). Plaques in obese ( n = 129) and non-obese ( n = 179 ...
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