|Yellowish patch consisting of cholesterol above the eyelids. These are more common in people with familial hypercholesterolemia.|
|Symptoms||None, yellowish lipid deposits in the skin|
|Complications||Heart disease, stroke, pancreatitis|
|Types||Phenotype I, IIa, IIb, III, IV, V|
|Risk factors||Genetics, poor diet, inactivity, obesity, smoking, diabetes, nephrotic syndrome, biliary obstruction, hypothyroidism, certain medications|
|Diagnostic method||Blood tests for total, LDL, and HDL cholesterol, and triglycerides|
|Treatment||Lifestyle changes, medications|
Dyslipidemia is an abnormal amount of lipids (fats) in the blood. It is divided into six types which result in some combination of high total cholesterol, high LDL cholesterol, low HDL cholesterol, high triglycerides, or high apolipoprotein B. There are generally no symptoms, though occasionally yellowish lipid deposits within the skin occur. Complications may include heart disease, stroke, and pancreatitis.
Causes may include poor diet, inactivity, obesity, excessive alcohol, and smoking. Other health conditions that can result in dyslipiedmia include diabetes, nephrotic syndrome, biliary obstruction, hypothyroidism, and certain medications. Some types run in families such as familial hypercholesterolemia. Diagnosis is generally by blood tests for total, LDL, and HDL cholesterol, and triglycerides.
Treatment involves lifestyle changes including a diet high in vegetables and exercise. Other treatments depend in part on the types of dyslipidemia. If medications are used, the initial choice is generally a statin. Dyslipidemia becomes more common with age. In the United States high cholesterol affects about 34% of those over the age of 20.
Dyslipidemias are classified in two ways:
- Presentation in the body (including the specific type of lipid that is increased)
- Underlying cause for the condition (genetic, or 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.
|Elevated lipoprotein||Chylomicron||LDL||LDL and VLDL||IDL||VLDL||VLDL and chylomicrons|
If medications are used the first line treatment is generally statins. With statins, the goal is to increase the medication to a specific dose, rather than adjust the medication to a cholesterol level.
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