Dyslipidemia

Not to be confused with lipedema.

Dyslipidemia
Classification and external resources
ICD-10	E78
ICD-9	272
MeSH	D050171

Dyslipidemia or dyslipidaemia is an abnormal amount of lipids (e.g. cholesterol and/or fat) in the blood. In developed countries, most dyslipidemias are hyperlipidemias; that is, an elevation of lipids in the blood, often due to diet and lifestyle. The prolonged elevation of insulin levels can lead to dyslipidemia. Increased levels of O-GlcNAc transferase (OGT) are known to cause dyslipidemia.[1]

Classification

There are two major ways in which dyslipidemias are classified:

• Phenotype, or the presentation in the body (including the specific type of lipid that is increased)
• Etiology, or the reason for the condition (genetic, or secondary to another condition.) This classification can be problematic, because most conditions involve the intersection of genetics and lifestyle issues. However, there are a few well-defined genetic conditions that are usually easy to identify.

Fredrickson Classification:

For more a detailed version, see Hyperlipidemia#Classification.

Phenotype	I	IIa	IIb	III	IV	V
Elevated Lipoprotein	Chylomicron	LDL	LDL and VLDL	IDL	Triglycerides	VLDL and chylomicrons

Types

	Increases	Decreases
Lipid	Hyperlipidemia: lipids Hypercholesterolemia: cholesterol. Familial hypercholesterolemia is a specific form of hypercholesterolemia due to a defect on chromosome 19 (19p13.1-13.3). Hyperglyceridemia: glycerides Hypertriglyceridemia: triglycerides	Hypolipidemia Hypocholesterolemia: cholesterol
Lipoprotein	Hyperlipoproteinemia: lipoproteins (usually LDL unless otherwise specified) Hyperchylomicronemia: chylomicrons	Hypolipoproteinemia: lipoproteins Abetalipoproteinemia: beta lipoproteins Tangier disease: high density lipoprotein
Both	Combined hyperlipidemia: both LDL and triglycerides

References

[