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Lipoprotein (a) and lipid and non-lipid risk factors in coronaries risk assessment
Lucia Agoşton-Coldea1, L D Rusu, D Zdrenghea
1Department of Medical Sciences, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania. luciacoldea@yahoo.com
Insights
Elevated lipoprotein(a) [Lp(a)] is an independent cardiovascular risk factor. High Lp(a) levels predict coronary heart disease risk better than traditional lipid fractions.
Area of Science:
- Cardiovascular Medicine
- Clinical Chemistry
- Biomarkers
Background:
- Elevated lipoprotein(a) [Lp(a)] is a recognized predictor of cardiovascular risk.
- Understanding the relationship between Lp(a), lipids, and other risk factors is crucial for cardiovascular disease (CVD) management.
Purpose of the Study:
- To investigate the association between Lp(a) levels, lipid profiles, and other cardiovascular risk factors in patients with and without coronary heart disease (CHD).
- To determine if Lp(a) serves as an independent predictor of CHD.
Main Methods:
- A cross-sectional study involving 208 patients (aged 37-75) with or without a history of myocardial infarction.
- Evaluation of cardiovascular risk factors, plasma lipid fractions, and Lp(a) levels.
- Logistic regression analysis to assess the relationship between Lp(a) and lipid/non-lipid risk factors.
Main Results:
- Patients with myocardial infarction exhibited significantly higher plasma Lp(a) and LDL-C levels, and a higher TC/HDL-C ratio, compared to those without CHD.
- The myocardial infarction group also showed significantly lower HDL-C levels.
- Multivariate analysis confirmed Lp(a), LDL-C, and TC/HDL-C ratio as independent predictors of CHD, with a significant association between high Lp(a) and the extent of coronary artery involvement.
Conclusions:
- High plasma Lp(a) levels are an independent risk factor for cardiovascular disease.
- Lp(a) offers superior risk prediction for CHD compared to conventional lipid fractions.
- Lp(a) is a valuable marker for cardiovascular risk assessment in clinical practice.
Purpose:
Several studies showed that elevated plasma levels of lipoprotein(a) [Lp(a)] represent a predictor for cardiovascular risk. Based on already existing literature data, we aim to study the relationship between Lp(a), lipids and other cardiovascular risk factors in individuals with or without coronary heart disease.
Methods:
We performed a cross-sectional transversal study on 208 patients (100 men and 108 women) aged between 37-75, with or without old myocardial infarction. In all the patients were evaluated the cardiovascular risk factors, the plasma level of the lipid fractions and Lp(a). The relationship between Lp(a) and the lipid and non-lipid risk factors were evaluated by the logistic regression method.
Results:
The myocardial infarction group had higher values of plasma levels of Lp(a) (0.37 +/- 0.28 vs. 0.29 +/- 0.23 g/L, p < 0.05), and LDL-C (125.66 +/- 41.21 vs. 113.44 +/- 46.64 mg/dL, p < 0.05), than the group without coronary heart disease, as well as higher values of plasmatic TC/HDL-C ratio (4.31 +/- 1.55 vs. 4.08 +/- 1.29, p < 0.05), with significantly decreased plasmatic levels of HDL-C (45.88 +/- 12.04 vs. 53.22 +/- 23.12 mg/dL, p < 0.05). The association between the high Lp(a) plasma levels and the severity of coronary vessels number involved was significant. Multivariate analysis performed with adjustments for cardiovascular risk factors showed that the Lp(a), LDL-C and CT/HDL-C ratio levels are significant and independent predictive markers of coronary heart disease.
Conclusion:
The results show that the high Lp(a) plasma levels represent an independent cardiovascular risk factor, with superior risk prediction than the conventional lipid fractions. Our results confirm the Lp(a) as a marker for cardiovascular risk assessment in clinical practice.
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