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Association Between the Uric Acid to High-Density Lipoprotein Cholesterol Ratio and Residual Risk for Coronary Artery
Shan Zhong1,2,3, Siqi Wang1,2,3, Peng Zhao1,2,3
1Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150086, China.
Insights
Elevated uric acid to high-density lipoprotein cholesterol ratio (UHR) is linked to increased atherosclerotic plaque burden in coronary artery disease patients. This metabolic-inflammatory marker may help identify individuals at higher risk for plaque progression.
Area of Science:
- Cardiology
- Metabolic Syndrome
- Vascular Biology
Background:
- Coronary artery disease (CAD) management faces residual risk despite advanced therapies.
- The uric acid to high-density lipoprotein cholesterol ratio (UHR) is an emerging metabolic-inflammatory marker.
- The association between UHR and atherosclerotic plaque progression in CAD patients is not well understood.
Purpose of the Study:
- To investigate the impact of baseline UHR on atherosclerotic plaque burden and progression in patients with newly diagnosed CAD.
- To determine if UHR can serve as a predictive marker for plaque vulnerability and progression.
Main Methods:
- Prospective cohort study of 118 CAD patients undergoing percutaneous coronary intervention.
- Patients stratified into quartiles based on baseline UHR.
- Intravascular ultrasound used to assess plaque burden and characteristics at baseline and 12-month follow-up.
- Logistic regression and restricted cubic spline models used for analysis, adjusting for cardiovascular risk factors.
Main Results:
- Higher baseline UHR quartiles were associated with increased plaque rupture and microchannels.
- The highest UHR quartile showed greater baseline percent atheroma volume (PAV).
- Elevated UHR was independently associated with a >70% plaque burden at follow-up (adjusted RR 3.237, P=0.025), with a linear relationship observed.
Conclusions:
- Elevated UHR is an independent predictor of high atherosclerotic plaque burden in CAD patients receiving guideline-directed therapy.
- UHR may function as a complementary biomarker to current risk scores.
- UHR could aid in identifying patients who may benefit from targeted therapies to reduce plaque vulnerability.
Abstract:
Despite advances in anti-atherosclerotic therapies, residual risk persists in coronary artery disease (CAD). The uric acid to high-density lipoprotein cholesterol ratio (UHR), a metabolic-inflammatory marker, may predict residual risk, but its association with plaque progression remains unexplored. This study investigates the impact of UHR on atherosclerotic plaque burden in CAD patients after treatment. In this prospective cohort study, 118 patients with newly diagnosed CAD undergoing percutaneous coronary intervention were stratified into quartiles by baseline UHR. Intravascular ultrasound assessed plaque burden and characteristics at baseline and 12-month follow-up. Logistic regression and restricted cubic spline models evaluated associations between UHR and plaque progression, adjusting for cardiovascular risk factors. At baseline, the highest UHR quartile (UHR-4) exhibited higher rates of plaque rupture (19.6% vs. 0-8.7%, P = 0.002) and microchannels (56.5% vs. 33.3-55.3%, P = 0.031) compared to lower quartiles. Baseline percent atheroma volume (PAV) was greater in UHR-4 (52.73% vs. 51.04-52.09%, P = 0.006). At follow-up, UHR-4 had a 3.2-fold increased risk of plaque burden > 70% (adjusted RR 3.237, 95% CI 1.156-9.063, P = 0.025), with a linear UHR-plaque burden relationship (P = 0.015). No associations were observed between UHR and minimal lumen area or positive remodeling. Elevated UHR is independently associated with high atherosclerotic plaque burden (> 70%) in CAD patients under guideline-directed therapy after adjusting for traditional risk factors. UHR may serve as a complementary biomarker to existing risk scores, guiding targeted therapies to mitigate plaque vulnerability.
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