Association of non-HDL cholesterol with plaque burden and composition of culprit lesion in acute coronary syndrome. An intravascular ultrasound-virtual histology study
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引用次数: 0
Abstract
Objective
Lipids play key role in coronary atherosclerosis. The role of non-high-density lipoprotein cholesterol (non-HDL-C) in atherosclerotic plaques using intravascular imaging remains unclear. This study aimed to assess its relationship with coronary plaque features using intravascular ultrasound (IVUS) in acute coronary syndrome (ACS).
Methods
A total of 601 patients divided into two groups: normal non-HDL-C≤130 mg/dl (n = 410) and high non-HDL cholesterol >130 mg/dl (n = 191). IVUS performed before coronary intervention.
Results
Mean age 53.18 ± 12.29 years. No significant differences in hypertension, diabetes, and smoking between groups. Plaque burden was significantly higher among normal versus high non-HDL-C groups (79.59 ± 9.98 % vs. 81.61 ± 5.39 %; p = 0.001). At minimal luminal site, fibrofatty percentage was higher in normal non-HDL-C group (p = 0.027), while necrotic core greater in high non-HDL-C group (p = 0.033). Segmental analysis, necrotic core was significantly higher in percentage (p = 0.006) and volumes (p = 0.011) in normal versus high non-HDL-C groups. Total cholesterol (r = 0.099, p = 0.015), LDL-C (r = 0.081, p = 0.046), triglycerides (r = 0.083, p = 0.041),and non-HDL-C (r = 0.099, p = 0.015) positively correlated with plaque burden. Total cholesterol (r = 0.115, p = 0.005), LDL-C (r = 0.107, p = 0.009), and non-HDL-C (r = 0.105, p = 0.010) positively correlated with necrotic core volume. Linear regression analysis showed age and non-HDL-C as predictors of higher plaque burden. Multiple linear regression analysis; age, body mass index, and non-HDL-C were predictors of larger necrotic core volume.
Conclusion
Non-HDL-C levels were positively associated with plaque burden, measure of extent of atherosclerosis. It is closely associated with and is a predictor of necrotic core volume; a marker of plaque vulnerability. This IVUS study demonstrates potential role of non-HDL-C in causation of plaque in ACS.
期刊介绍:
Indian Heart Journal (IHJ) is the official peer-reviewed open access journal of Cardiological Society of India and accepts articles for publication from across the globe. The journal aims to promote high quality research and serve as a platform for dissemination of scientific information in cardiology with particular focus on South Asia. The journal aims to publish cutting edge research in the field of clinical as well as non-clinical cardiology - including cardiovascular medicine and surgery. Some of the topics covered are Heart Failure, Coronary Artery Disease, Hypertension, Interventional Cardiology, Cardiac Surgery, Valvular Heart Disease, Pulmonary Hypertension and Infective Endocarditis. IHJ open access invites original research articles, research briefs, perspective, case reports, case vignette, cardiovascular images, cardiovascular graphics, research letters, correspondence, reader forum, and interesting photographs, for publication. IHJ open access also publishes theme-based special issues and abstracts of papers presented at the annual conference of the Cardiological Society of India.