What are the types of cardiomyopathy?

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What are the types of cardiomyopathy?

The most common types of cardiomyopathy are:

  • Dilated cardiomyopathy: Your heart’s blood-pumping chambers enlarge (dilate).
  • Hypertrophic cardiomyopathy: Your heart muscle thickens.
  • Arrhythmogenic right ventricular dysplasia (ARVD): Disease in your heart muscle causes irregular heart rhythms.
  • Restrictive cardiomyopathy: Your heart muscle scars, stiffens or both.
  • Transthyretin amyloid cardiomyopathy (ATTR-CM): Abnormal protein buildup (ATTR amyloidosis) in your heart’s left ventricle (primary blood-pumping chamber).

Some cardiomyopathies don’t fit into these general categories. These conditions include:

  • Broken heart syndrome (stress-induced or takotsubo cardiomyopathy): Temporary heart enlargement.
  • Chemotherapy-induced cardiomyopathy: Heart damage related to cancer treatment.
  • Peripartum cardiomyopathy: Congestive heart failure that occurs during or after pregnancy.

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