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Classification of hyperlipidaemias - a time for review?
Summary
Diagnosis of lipid metabolism disorders can be simplified by evaluating plasma lipids alone, replacing complex lipoprotein phenotyping. This approach accounts for the heterogeneity of lipoproteins and hyperlipoproteinemias, offering a more straightforward diagnostic method.
Area of Science:
- Biochemistry
- Metabolic Disorders
- Clinical Diagnostics
Background:
- Classical diagnosis of lipid metabolism disturbances relies on lipoprotein phenotyping.
- Lipoprotein phenotypes are chemically heterogeneous.
- Hyperlipoproteinemias exhibit significant clinical, biochemical, pathogenic, and genetic diversity.
Purpose of the Study:
- To advocate for a simplified diagnostic approach to lipid metabolism disorders.
- To challenge the utility of traditional lipoprotein phenotyping.
- To propose plasma lipid evaluation as a sufficient diagnostic basis.
Main Methods:
- Review of existing evidence on lipoprotein chemistry.
- Analysis of the heterogeneity within hyperlipoproteinemia classifications.
- Evaluation of the diagnostic and clinical value of lipoprotein typing.
Main Results:
- Lipoproteins are chemically diverse, making phenotyping complex.
- Hyperlipoproteinemias are highly heterogeneous, limiting the value of distinct types.
- The classification of secondary disorders based on lipoprotein types has questionable clinical utility.
Conclusions:
- The classical lipoprotein phenotyping method for diagnosing lipid metabolism disturbances is outdated.
- A simpler diagnostic strategy focusing on plasma lipid levels is recommended.
- This revised approach offers a more practical and effective method for assessing lipid disorders.