ArticleJournal of atherosclerosis and thrombosis2026
Lipoprotein(a) Is Associated with Coronary Plaque Vulnerability and Compensatory Vascular Enlargement: An Intravascular Ultrasound Study.
Article in Journal of atherosclerosis and thrombosis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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6 authors.
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Abstract
aimsLipoprotein(a) [Lp(a)] has emerged as a critical determinant of residual cardiovascular risk. However, its impact on plaque morphology remains underinvestigated. This study aimed to elucidate the relationship between the serum Lp(a) levels, coronary plaque vulnerability, and vascular remodeling characteristics by utilizing intravascular ultrasound (IVUS).
methodsWe retrospectively enrolled 292 consecutive patients with coronary artery disease who underwent IVUS. Target lesions were classified into vulnerable (n = 83) or stable (n = 209) plaque groups based on the IVUS criteria. Multivariate binary logistic regression was performed to identify independent predictors. The morphological parameters were further compared between the high (＞18.8 mg/dL) and low (≤ 18.8 mg/dL) Lp(a) groups.
resultsThe vulnerable plaque group exhibited significantly higher median serum Lp(a) levels than the stable group (14.56 vs. 11.04 mg/dL, P = 0.011). After adjusting for age, sex, LDL-C, smoking, diabetes, and hypertension, Lp(a) ＞18.8 mg/dL remained an independent predictor of plaque vulnerability (OR = 1.76; 95% CI: 1.00-3.07; P = 0.049). Notably, the LDL-C levels did not predict vulnerability in this cohort. Furthermore, the high Lp(a) group demonstrated significantly larger vascular dimensions (EEM CSA: 14.67±4.95 vs. 13.22±4.20 mm
conclusionElevated serum Lp(a) levels are independent predictors of coronary plaque vulnerability. The underlying mechanism involves Lp(a) promoting compensatory vascular enlargement, accompanied by an increased plaque volume. These findings underscore the necessity of Lp(a) screening to identify any residual risk, particularly in patients with effectively controlled low-density lipoprotein cholesterol (LDL-C).
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