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Left Ventricular Hypertrophy

Left Ventricular Hypertrophy: Causes and Treatment

Left ventricular hypertrophy is a common contributor to potentially serious heart complications, affecting an estimated 15% of the United States population. At CardioVascular Health Clinic, we help our diverse patient population address this and other heart care issues effectively and compassionately.

What Is Left Ventricular Hypertrophy?

Your heart's left ventricle is its main chamber; it pumps oxygen-rich blood into the largest artery in the body, known as the aorta. If the heart exerts too much effort to pump blood, the left ventricle's muscles become thicker. This condition is called left ventricular hypertrophy. 

Left ventricular hypertrophy reduces the ability of the heart to pump blood effectively. The condition can deprive the heart muscle of needed oxygen and result in abnormalities in the conduction system, causing heartbeat irregularities (arrhythmia).

Left ventricular hypertrophy commonly develops as a consequence of other cardiovascular conditions. Combined, they can heighten your risk of life-threatening health issues. Left untreated, it affects your heart's ability to pump blood efficiently. The inability to pump blood effectively raises the risk of serious heart problems, including the following: 

  • Heart attack (myocardial infarction)
  • Heart failure
  • Heart palpitations (arrhythmia)
  • Stroke

Who Is at Risk for Left Ventricular Hypertrophy?

Approximately one in five people suffer from left ventricular hypertrophy. You might have an elevated risk if you are obese, have high blood pressure, or are over 65. The African American population is also at increased risk compared to other ethnic and racial categories.

What Causes Left Ventricular Hypertrophy?

Generally, left ventricular hypertrophy occurs due to high blood pressure, known clinically as hypertension. Your heart works harder when you have high blood pressure, and the additional strain leads to the thickening of the left ventricle walls.

Though high blood pressure is the most common contributing factor, in some instances, aggressive exercise and intense physical training can cause the left ventricle walls to become thicker. However, exercise-related left ventricular hypertrophy won't require the same aggressive treatment often needed when high blood pressure is the cause. 

Additional factors that contribute to elevated heart strain that can cause left ventricular hypertrophy include the following: 

  • Heart arrhythmia: The heart may beat faster than usual when it has an irregular rhythm. An elevated heart rate can cause damage to the heart, resulting in impeded blood flow. 
  • Aortic valve stenosis: A narrowing of the aortic valve makes blood circulation less efficient.
  • Diabetes: Elevated blood sugar levels (hyperglycemia) contribute to increased blood viscosity, which can elevate the risk of cardiovascular disease.

What Are the Symptoms of Left Ventricular Hypertrophy?

Mild cases are often symptomless. As the disease progresses, however, you might develop the following signs:

  • Chest pain
  • Dizziness or loss of consciousness
  • Elevated or irregular heartbeat
  • Fatigue
  • Shortness of breath

How Is Left Ventricular Hypertrophy Treated?

A standard heart screening can detect left ventricular hypertrophy regardless of symptoms. The most common tests include the following:

  • Echocardiography
  • Electrocardiography
  • Magnetic resonance imaging (MRI)

Addressing the primary cause of left ventricular hypertrophy can slow or stop the development of the disease. A variety of treatment options could be appropriate based on the cause, which might include:

  • Blood pressure medication: Reducing your blood pressure will help keep the disease from progressing. Maintaining blood pressure at a safe level can minimize your risk of potentially dangerous conditions, including heart attack and stroke.
  • Surgical intervention: When left ventricular hypertrophy results from aortic valve stenosis, aortic valve surgery might be required. The procedure repairs the blocked valve, permitting proper blood flow.
  • Lifestyle changes: If your lifestyle contributes to your high blood pressure and narrowed arteries, adopting healthy habits could significantly reduce your risk of life-threatening complications. A heart-healthy diet combined with regular exercise is crucial to managing cardiovascular disease.

If you have concerns about your cardiovascular health, please contact the team at CardioVascular Health Clinic for a full heart screening today.

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