Cardiomyopathy: Types and Management

Cardiomyopathy is a disease of the heart muscle that affects the heart’s ability to pump blood efficiently. If left untreated, it can lead to heart failure, dangerous heart rhythm disturbances, and even sudden cardiac death. Early diagnosis and expert treatment are crucial to prevent complications and improve long-term heart health.

The two most common forms of cardiomyopathy are Dilated Cardiomyopathy (DCM) and Hypertrophic Cardiomyopathy (HCM).

Dilated Cardiomyopathy (DCM)

Dilated cardiomyopathy occurs when the heart’s chambers, particularly the left ventricle, become enlarged and weakened. As the heart muscle stretches and thins, its pumping efficiency decreases, making it difficult to supply adequate blood to the body’s organs.

People with DCM may initially experience no symptoms. As the disease progresses, symptoms may include:

  • Shortness of breath during activity or even at rest
  • Persistent fatigue
  • Swelling of the legs, ankles, and feet
  • Rapid or irregular heartbeat
  • Chest discomfort
  • Difficulty lying flat due to breathlessness
Without timely treatment, DCM can progress to advanced heart failure.

Hypertrophic Cardiomyopathy (HCM)

Hypertrophic cardiomyopathy is characterized by abnormal thickening of the heart muscle, most commonly the wall separating the two ventricles. This thickened muscle can obstruct blood flow and increase the risk of abnormal heart rhythms.

Common symptoms include:

  • Chest pain, especially during exercise
  • Shortness of breath
  • Palpitations
  • Dizziness or fainting
  • Reduced exercise tolerance
Many individuals with HCM remain symptom-free for years, making routine cardiac evaluation important for those with a family history of heart disease or unexplained fainting episodes.

Treatment options

Treatment depends on the type of cardiomyopathy, severity of symptoms, and overall heart function.

Medications are usually the first line of treatment and may include beta-blockers, calcium channel blockers, anti-arrhythmic drugs, blood thinners, and newer medications like mavacamten for selected patients with obstructive HCM. These medicines help improve blood flow, reduce symptoms, and lower the risk of complications.

When medications alone are insufficient, advanced procedures may be recommended:

  • Septal myectomy: Surgical removal of the thickened heart muscle to improve blood flow in patients with obstructive HCM.
  • Alcohol septal ablation: A catheter-based procedure that reduces the thickness of the obstructing heart muscle.
  • Implantable cardioverter defibrillator (ICD): Protects patients at high risk of sudden cardiac arrest by correcting life-threatening heart rhythms.
  • Cardiac resynchronization therapy (CRT): Improves coordinated heart contractions in selected patients.
  • Ventricular assist device (VAD): Supports heart function in advanced heart failure.
  • Heart transplant: Considered when severe cardiomyopathy no longer responds to medical or surgical treatment.

Expert cardiac care makes the difference Successful treatment of cardiomyopathy requires accurate diagnosis, advanced imaging, individualized treatment planning, and experienced cardiac surgeons. At Aster RV Hospital, patients receive comprehensive evaluation and state-of-the-art treatment for all forms of cardiomyopathy.

For patients requiring complex surgical intervention, Dr. Divakar Bhat, recognized as one of the Best Open Heart Surgeons in Bangalore, offers extensive expertise in managing complex cardiac conditions with excellent clinical outcomes. Whether it involves advanced heart failure management, valve surgery, or other complex cardiac procedures, choosing the Best Doctor for Heart Problems in Bangalore ensures timely intervention and better recovery.

If you or a loved one experiences persistent breathlessness, chest pain, palpitations, or unexplained fainting, seek prompt medical evaluation. Early diagnosis and expert care can significantly improve quality of life and help prevent serious complications.