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Coronary artery disease in heterozygous familial hypercholesterolemia
Insights
In heterozygous familial hypercholesterolemia (FH), lower high-density lipoprotein cholesterol (HDL-C) and increased Achilles tendon thickness are key indicators for coronary artery disease (CAD) development. Early identification of these factors aids in predicting CAD risk.
Area of Science:
- Cardiovascular Medicine
- Metabolic Disorders
- Genetics
Background:
- Familial hypercholesterolemia (FH) is a genetic disorder characterized by high cholesterol levels.
- Coronary artery disease (CAD) is a significant complication in FH patients.
- Identifying key risk factors for CAD in FH is crucial for effective management.
Purpose of the Study:
- To investigate the relationship between serum lipids, lipoproteins, and Achilles tendon thickness with CAD in heterozygous FH patients.
- To identify predictive factors for the development of CAD in this population.
Main Methods:
- Cross-sectional study involving 52 patients with heterozygous FH.
- Analysis of serum lipid profiles, including total cholesterol, triglyceride, and HDL cholesterol (HDL-C).
- Measurement of Achilles tendon thickness and calculation of the atherogenic index.
Main Results:
- No significant difference in total cholesterol or triglyceride levels between patients with and without CAD.
- Significantly lower HDL-C levels in FH patients with CAD compared to those without.
- Achilles tendon thickness was greater in patients with CAD, though less correlated with CAD incidence than HDL-C.
Conclusions:
- HDL-C levels and Achilles tendon thickness are important indicators for CAD development in heterozygous FH.
- A combination of parameters like HDL-C, atherogenic index, and tendon thickness may enable CAD risk forecasting in FH.
Abstract:
Serum lipids, lipoproteins and Achilles tendon thickness in 52 patients with heterozygous familial hypercholesterolemia (FH) were investigated in order to clarify what are the important factors for the development of coronary artery disease (CAD) in heterozygous FH patients. There were no significant differences in the average concentration of total cholesterol and triglyceride between the patients with and those without CAD. The HDL cholesterol (HDL-C) level was significantly lower in patients with CAD than in those without, and the HDL-C value was within the normal range in most of the patients with heterozygous FH, if not associated with CAD. Although most of the males aged over 50 years had CAD and a decreased level of HDL-C, many of the aged females were without signs of CAD. The HDL-C value of heterozygous FH patients with CAD was significantly lower compared with the age-matched group without CAD. The Achilles tendon was thicker in patients with CAD than in those without CAD, both for males and females, although it was less closely correlated with the incidence of CAD than HDL-C or the atherogenic index. A forecast concerning the development of CAD in heterozygous FH may be possible if we consider multiple parameters, such as HDL-C, atherogenic index, Achilles tendon thickness, etc.