A disease in which the walls of the left ventricle become thickened is called left ventricular hypertrophy (LVH). This is the main pumping chamber of the heart, and this condition often happens due to hypertension (high blood pressure). Moreover, a thickened left ventricle may negatively affect the ability to pump blood into the aorta, which is a major artery that sends oxygen-rich blood throughout the body. It is very important to get treatment if you have problems with the left ventricle because it is one of the most important heart chambers that pumps oxygen-rich blood to all tissues and organs in the body.
In general, left ventricular hypertrophy affects about 1 in 5 people.
Types of Left Ventricular Hypertrophy
Physicians have divided this disorder into 3 categories based on the size of the left ventricle and the thickness of its walls. For example:
- Concentric – This type of condition causes the left ventricle walls to get thicker inward, which makes the space inside the ventricle itself smaller.
- Eccentric – In such cases, the space inside the ventricle becomes larger because it expands outward.
- Concentric remodeling (CR) – This type causes the walls to get thicker, but the total amount of wall tissue remains normal.
Symptoms
While a mild LVH does not cause symptoms, people who develop a moderate or severe form often experience the following symptoms. Examples include:
- Angina (heart-related chest pain)
- Extreme tiredness (fatigue)
- Dyspnea (shortness of breath)
- Fast heartbeat
- Dizziness
- Fainting (syncope)
If any of the previous symptoms occur, immediately visit a doctor for a diagnosis and treatment. Leaving it untreated may cause serious and even life-threatening complications.
Causes and Risk Factors
While there are a lot of health conditions that can cause LVH, the most common of them is hypertension. This condition makes your heart work harder, which can cause the muscle in the left ventricle walls to get larger and thicker. Moreover, intense athletic training may sometimes increase the size and thickness of the left ventricular walls. However, most of the time, athletes’ hearts function properly and do not need treatment. Check for other disorders that may cause LVH below:
- Heart valve disease – For example, a leak or narrowing of the mitral valve or aortic valve.
- Diabetes – Increased sugar levels in the blood can cause heart damage.
- Cardiomyopathy – There are some types of heart muscle disease that can make the heart muscle stiff or thick.
- Aortic coarctation – This condition narrows a part of the aorta, which negatively affects blood flow.
- Cardiac amyloidosis – People who develop this condition often have a buildup of proteins in the heart. It makes it more difficult for the heart to pump blood.
- Renal artery stenosis – In such cases, arteries that bring blood to the kidneys become narrowed.
- Ventricular septal defect (VSD) – This is a serious condition in which a hole forms in the wall of tissue between the lower chambers of the heart.
- Genetic disorders – In rare cases, some inherited or acquired genetic mutations can affect the left ventricle of the heart. These include Danon disease, Fabry disease, and others.
Healthcare providers have also identified some factors that could increase your risk of developing left ventricular hypertrophy. Examples include obesity (excessive body weight), chronic kidney disease, obstructive sleep apnea, and others. People who smoke, drink heavy amounts of alcohol, or eat a lot of salt are also at increased risk.
What Are The Long-term Effects of Left Ventricular Hypertrophy?
People who develop this condition may also experience some complications, especially if they leave it untreated. Check some examples below:
- Heart failure
- Arrhythmia (irregular heart rhythm)
- Ischemic heart disease
- Heart attack (also known as myocardial infarction)
- Stroke
- Sudden cardiac arrest
- Symptoms of progression (including fatigue, trouble breathing, palpitations, and others)
- Dementia
This article does not contain a full list of complications, but doctors may recommend some tips that could reduce the risk or even prevent them.
Is There a Way to Prevent Left Ventricular Hypertrophy?
In general, early detection and proper treatment are important because it helps reduce the risk of life-threatening complications. One sure way to reduce the risk of LVH is to prevent or treat hypertension. However, doctors may recommend additional tips to reduce the risk. For example:
- Physical activity – Physicians often recommend performing 30 minutes of physical exercise, at least 5 days a week, to maintain a healthy weight and improve the heart’s function.
- Manage stress and chronic health conditions – For example, diabetes, hyperlipidemia, high blood pressure, and others.
- Stop smoking – If you are facing problems with smoking cessation, you should discuss it with your healthcare professional.
- Adopt a diet low in salt and cholesterol
Diagnosis
In some cases, doctors may find LVH during a routine heart screening even if you do not have any symptoms. In any case, to confirm or rule out this condition, doctors often perform the following tests and procedures. For example:
- Echocardiogram
- Electrocardiogram (ECG or EKG) – This is a quick and painless test used to measure the electrical activity of the heart. Usually, it helps diagnose arrhythmia.
- MRI (magnetic resonance imaging) scans
- Blood work
- Technetium pyrophosphate scan – This is a nuclear imaging test used to check for cardiac amyloidosis.
Treatment
The treatment goal is to stop or slow the progression of LVH. Commonly, doctors prescribe one or a combination of the following options. Examples include:
- Lifestyle changes – Generally, heart-healthy habits may reduce blood pressure and risk of LVH complications. These include healthy foods, physical exercise, avoiding alcohol and recreational drugs, and quitting smoking.
- Antihypertensives – This group of medications is used to treat or prevent high blood pressure, which may help prevent LVH from worsening.
- Other medicines – Your cardiologist may also prescribe an SGLT2 inhibitor or Allopurinol to manage this heart disease.
- Heart valve surgery – If you develop LVH due to aortic valve or mitral valve stenosis, doctors may recommend surgery to repair or replace the valve.
- Implantable cardioverter defibrillator (ICD) – This is a specific device that delivers small electric shocks to keep a normal heart rhythm.
- Bariatric surgery – This surgery is used for weight loss, but it may also help with blood pressure.
Frequently Asked Questions
When should I see my healthcare provider?
If any of the following symptoms occur, immediately contact your physician. Examples include:
- Dyspnea (shortness of breath)
- Symptoms of stroke
- Fast heartbeat
- Sudden and severe chest pain
Can left ventricular hypertrophy be reversed?
In some cases, yes. If LVH is caused by certain conditions (such as hypertension), effective treatment, especially blood pressure control, can lead to partial or even complete regression of the thickened heart muscle. Lifestyle changes and proper medication play a key role in this process.
Is left ventricular hypertrophy the same as cardiomyopathy?
No, but they can be related. LVH refers specifically to thickening of the left ventricle, while cardiomyopathy is a broader term for diseases affecting the heart muscle. Some types of cardiomyopathy, such as hypertrophic cardiomyopathy, can cause LVH.
Can young people develop left ventricular hypertrophy?
Yes, although it is more common in older adults. Younger individuals may develop LVH due to genetic conditions, intense athletic training, or underlying heart abnormalities. In athletes, this is sometimes a normal adaptation, but it should still be evaluated to rule out disease.
Does left ventricular hypertrophy always cause symptoms?
No. Many people with LVH, especially in the early stages, have no symptoms at all. The condition is often discovered during routine tests such as an electrocardiogram or echocardiogram. However, as the condition progresses, symptoms may begin to appear.
What lifestyle changes are most effective for managing LVH?
The most effective lifestyle changes include controlling blood pressure, maintaining a healthy weight, engaging in regular physical activity, reducing salt intake, quitting smoking, and limiting alcohol consumption. These measures not only help manage LVH but also improve overall cardiovascular health. If you have any other questions, ask your healthcare provider.
