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Primary Dyslipidemia - Causes, Types, Symptoms, Treatment

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Dyslipidemia is defined as abnormally high or low blood lipid levels. Triglycerides and cholesterol are examples of blood lipids.

Medically reviewed by

Dr. Sugandh Garg

Published At June 20, 2023
Reviewed AtSeptember 11, 2023

What Is Dyslipidemia?

When lipid levels in the blood are abnormal, dyslipidemia occurs. Dyslipidemia covers a wide range of conditions, the most common types of dyslipidemia are as follows:

  • High levels of low-density lipoproteins (LDL), also known as bad cholesterol.

  • Low levels of high-density lipoproteins (HDL), also known as good cholesterol.

  • High triglyceride levels.

  • High LDL and triglyceride levels.

Lipids, also known as fats, are the building blocks of life that provide energy to cells. Lipids include the following:

  • LDL cholesterol is regarded as bad because it can cause plaques to form in blood vessels.

  • HDL cholesterol is regarded as good because it can aid in the removal of LDL from the blood.

  • Triglycerides form when calories are not burned immediately and are stored in fat cells.

Healthy blood lipid levels differ from person to person. People with high LDL and triglyceride levels, or very low HDL levels, are at a higher risk of atherosclerosis. Atherosclerosis occurs when hard, fatty deposits called plaques accumulate in blood vessels, making blood flow difficult. These plaques can accumulate over time and cause major circulation issues, such as heart attacks and strokes.

What Are the Causes of Primary Dyslipidemia?

A variety of behaviors can contribute to dyslipidemia. Smoking cigarettes, obesity, and sedentary lifestyles lead to a diet high in trans and saturated fats. Triglyceride levels can also be raised by excessive alcohol consumption. If one or both parents have dyslipidemia a person is more likely to develop primary dyslipidemia. Another risk factor for high cholesterol is age. Women have lower LDL levels than men until menopause. LDL cholesterol levels in women begin to rise at this point.

The primary causes are single or multiple gene mutations that result in either excessive or defective clearance of triglycerides (TG) and low-density lipoprotein (LDL) or excessive or insufficient clearance of high-density lipoprotein (HDL).

What Are the Types of Dyslipidemia?

Dyslipidemia refers to fat blood levels that are either low or higher than the normal range. Dyslipidemia is classified as either primary or secondary. Primary dyslipidemia is a genetic disorder. Secondary dyslipidemia is a condition that develops over time. It develops due to other factors, such as obesity or diabetes.

The types of dyslipidemia are:

Primary Dyslipidemia: Primary hyperlipidemias are diverse monogenic and polygenic conditions distinguished by strong family aggregation, severe hypercholesterolemia and hypertriglyceridemia, early onset, and a high risk of cardiovascular events and recurrent pancreatitis. The common causes of primary dyslipidemia include:

  • Familial Combined Hyperlipidemia - Familial combined hyperlipidemia is the most common inherited cause of high levels of triglyceride and high LDL cholesterol. Having familial combined hyperlipidemia, one may develop these issues in the teens or early twenties. People are also more likely to develop early coronary artery disease, which can result in a heart attack.

  • Familial Hypercholesterolemia and Polygenic Hypercholesterolemia - High total cholesterol levels characterize these. The ideal total cholesterol level is less than 200 milligrams per deciliter (mg/dL). This condition indicates that one has high levels of apolipoprotein B, a protein in LDL cholesterol.

  • Familial Hyperapobetalipoproteinemia - This condition indicates that one has high levels of apolipoprotein B, a protein in LDL cholesterol.

Secondary Dyslipidemia: Secondary dyslipidemia is caused by lifestyle or medical conditions that disrupt blood lipid levels over time. The following factors commonly cause secondary dyslipidemia:

  • Obesity.

  • Diabetes.

  • Polycystic ovary syndrome.

  • Hypothyroidism.

  • Cushing syndrome.

  • Alcoholism.

  • Metabolic syndrome.

  • Inflammatory bowel syndrome.

  • Abdominal aortic aneurysm.

  • Sexually transmitted disease.

What Are the Symptoms of Dyslipidemia?

Most people with dyslipidemia are unaware they have it unless it is severe. The diagnosis of dyslipidemia is done during a routine blood test or while testing for another condition. Severe or untreated dyslipidemia can lead to other health problems, such as coronary artery disease (CAD) and peripheral artery disease (PAD). CAD and PAD can lead to serious health problems such as heart attacks and strokes. The most common symptoms of this condition are:

  • Leg pain.

  • Chest pain.

  • Dizziness.

  • Heart palpitations.

  • Cold sweats.

  • Vomiting.

  • Nausea.

  • Heartburn.

  • Indigestion.

  • Tightness, pain, and pressure in the jaw, neck, shoulder, and back.

  • Sleep problems.

  • Fainting.

  • Swelling in ankles, feet, stomach, legs, and neck veins.

These symptoms may worsen with activity or stress and improve with rest. Do consult a specialist in case the person experiences chest pain, or if any of the above symptoms are present. Anyone experiencing severe chest pain, dizziness, fainting, or breathing difficulties should seek emergency medical attention.

What Is the Treatment of Primary Dyslipidemia?

A doctor usually focuses on lowering a person's triglyceride and LDL levels. However, the course of treatment depends on the underlying causes of dyslipidemia as well as how severe the problem is. For patients with exceptionally high total cholesterol levels of at least 200 milligrams per deciliter of blood, doctors may recommend one or more lipid-modifying drugs. Statins, which inhibit cholesterol production in the liver, are commonly used to treat high cholesterol. If statins do not reduce LDL and triglyceride levels, a doctor may prescribe additional medications, such as:

  • Fibrates.

  • Niacin.

  • Ezetimibe.

  • Lomitapide.

  • Alirocumab.

  • Mipomersen.

Some supplements and lifestyle changes can help to encourage healthy blood lipid levels. Natural treatment includes:

  • Limiting consumption of unhealthy fats found in full-fat dairy products, red meat, refined carbohydrates, chips, chocolate, and fried foods.

  • Regular exercise, maintaining healthy body weight, and, if necessary, losing weight, reducing or avoiding alcohol consumption.

  • Quit smoking and using other tobacco products.

  • Avoid long periods of sitting, increase consumption of healthy polyunsaturated fats found in nuts, seeds, legumes, fish, whole grains, and olive oil, and take omega-3 oil as a liquid or in capsules.

  • Consume sufficient dietary fiber from whole fruits, vegetables, and whole grains, get at least six to eight hours of sleep per night, and drink plenty of water.

Conclusion:

No symptoms usually accompany minor dyslipidemia. However, they can frequently manage or resolve the condition by making lifestyle changes. If people with dyslipidemia experience symptoms related to the heart or circulation, they should visit a doctor.

Frequently Asked Questions

1.

How Do Primary and Secondary Dyslipidemia Differ From Each Other?

Primary Dyslipidemia:


- Primary dyslipidemia, also known as familial or genetic dyslipidemia, is primarily caused by inherited genetic factors.


- It often runs in families and is unrelated to other underlying health conditions.


- Examples of primary dyslipidemias include familial hypercholesterolemia (inherited high cholesterol) and familial combined hyperlipidemia.


Secondary Dyslipidemia:


- Secondary dyslipidemia is the result of underlying medical conditions, lifestyle factors, or medications.


- It is often secondary to other health issues, such as obesity, diabetes, thyroid disorders, kidney disease, and certain medications like diuretics or corticosteroids.


- Treating the underlying condition or adjusting medications can help manage secondary dyslipidemia.

2.

How Is Primary Dyslipidemia Classified?

Primary dyslipidemia can be classified into several different types, each of which is characterized by specific lipid abnormalities and genetic factors. The major classifications of primary dyslipidemia include:


- Familial Hypercholesterolemia (FH).


- Familial Combined Hyperlipidemia (FCH).


- Familial Dysbetalipoproteinemia (Type III Hyperlipoproteinemia).


- Familial Lipoprotein Lipase Deficiency (Type I Hyperlipoproteinemia).


- Familial Lipid Disorders of HDL (High-Density Lipoprotein)


- Familial Hypertriglyceridemia (Type IV Hyperlipoproteinemia).

3.

What Are the Treatment Options for Individuals With Primary Dyslipidemia?

The treatment of primary dyslipidemia, especially in cases like familial hypercholesterolemia and other genetic lipid disorders, typically involves a combination of lifestyle modifications and, in some cases, medications, regular monitoring, genetic counseling, and genetic testing may be involved.

4.

Does Dyslipidemia Fall Under the Category of Heart Disease?

Dyslipidemia itself is not a heart disease, but it is a significant risk factor for heart disease. Dyslipidemia refers to an abnormal level of lipids, such as cholesterol and triglycerides, in the blood. Elevated levels of low-density lipoprotein (LDL) cholesterol, often referred to as "bad" cholesterol, and reduced levels of high-density lipoprotein (HDL) cholesterol, known as "good" cholesterol, are common components of dyslipidemia.

5.

What Is the Main Factor Leading To Dyslipidemia?

The primary cause of dyslipidemia is a combination of genetic and lifestyle factors. Genetic predisposition can lead to conditions like familial hypercholesterolemia, where the body struggles to regulate cholesterol levels. Unhealthy dietary habits, lack of physical activity, obesity, and other lifestyle factors can also contribute to dyslipidemia by increasing levels of "bad" LDL cholesterol and triglycerides while reducing "good" HDL cholesterol.

6.

What Are the Main Causes of Hyperlipidemia, Both Primary and Secondary?

Hyperlipidemia, the elevation of lipid levels in the blood, has both primary and secondary causes.


- Primary hyperlipidemia results from genetic factors, such as familial hypercholesterolemia, familial combined hyperlipidemia, and other inherited lipid disorders.


- Secondary hyperlipidemia is primarily caused by underlying health conditions (e.g., diabetes, hypothyroidism), medications (e.g., corticosteroids, some diuretics), diet, and lifestyle choices. These factors can lead to increased levels of LDL cholesterol and triglycerides, contributing to cardiovascular risk.

7.

What Is the Most Recent Treatment for Dyslipidemia?

The treatment of dyslipidemia primarily involves lifestyle changes, including a heart-healthy diet, exercise, and medications like statins. PCSK9 inhibitors and newer lipid-lowering drugs were emerging treatments.

8.

What Is the Initial Treatment Recommended for Dyslipidemia?

The first-line treatment for dyslipidemia typically involves lifestyle modifications. These include adopting a heart-healthy diet, engaging in regular physical activity, and maintaining a healthy weight. Lifestyle changes aim to improve lipid profiles and reduce cardiovascular risk. Medications, such as statins, may be prescribed if lifestyle changes alone are insufficient or in cases of high cardiovascular risk.

9.

What Natural Methods Are Available for Treating Dyslipidemia in Individuals?

To treat dyslipidemia naturally, individuals can adopt the following lifestyle changes:


- Follow a heart-healthy diet rich in fruits, vegetables, whole grains, and lean proteins while limiting saturated and trans fats.


- Engage in regular physical activity.


- Maintain a healthy weight.


- Avoid smoking and limit alcohol intake.


- Manage stress.

10.

What Dietary Recommendations Are Suggested for Individuals With Dyslipidemia?

A diet for dyslipidemia, often referred to as a heart-healthy diet, should focus on the following:


- Reducing saturated and trans fats by limiting red meat, full-fat dairy, and processed foods.


- Increasing intake of fruits, vegetables, whole grains, and legumes.


- Including sources of omega-3 fatty acids like fatty fish.


- Moderating alcohol and sugar consumption.


- Watching portion sizes to manage caloric intake.

11.

Are Dyslipidemia and High Cholesterol Synonymous Terms?

Dyslipidemia and high cholesterol are related but not the same. Dyslipidemia is a broader term referring to abnormal levels of lipids in the blood, including high cholesterol. High cholesterol specifically means elevated levels of cholesterol, particularly LDL (low-density lipoprotein) cholesterol. Dyslipidemia encompasses various lipid abnormalities, including high LDL cholesterol, low HDL (high-density lipoprotein) cholesterol, and high triglycerides, often associated with an increased risk of cardiovascular disease.

12.

What Natural Approaches Are Available for Managing Dyslipidemia in Individuals?

To treat dyslipidemia naturally, individuals can adopt the following lifestyle changes:


- Follow a heart-healthy diet rich in fruits, vegetables, whole grains, and lean proteins while limiting saturated and trans fats.


- Engage in regular physical activity.


- Maintain a healthy weight.


- Avoid smoking and limit alcohol intake.


- Manage stress.

13.

Can Dyslipidemia Pose a Life-Threatening Risk?

Dyslipidemia itself is not life-threatening, but it significantly increases the risk of life-threatening conditions. It is a major risk factor for cardiovascular diseases such as heart attacks and strokes. Proper management and control of dyslipidemia through lifestyle changes and, when necessary, medications are essential to reduce the risk of these potentially life-threatening events.

14.

Is Dyslipidemia Associated With Hypertension?

Dyslipidemia and hypertension (high blood pressure) are distinct medical conditions but often coexist and share a strong relationship. Hypertension is characterized by elevated blood pressure, while dyslipidemia relates to abnormal lipid levels. Both conditions increase the risk of cardiovascular diseases. Managing both effectively is vital to reducing cardiovascular risk.

15.

Is There a Cure for Hyperlipidemia?

Hyperlipidemia, including primary and familial types, cannot be completely cured but can be effectively managed. Lifestyle changes and medications can control lipid levels, reducing cardiovascular risk. Management may need to be lifelong. Consult with a healthcare provider for a personalized treatment plan based on the specific type and severity of hyperlipidemia.

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Dr. Sugandh Garg
Dr. Sugandh Garg

Internal Medicine

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