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Cardiomyopathy

Cardiomyopathy is a disease that affects the heart muscle and the way it pumps. It may occur as a result of damage to the heart, such as from a heart attack, or a person may inherit the tendency to develop cardiomyopathy.

  • In dilated cardiomyopathy, the chambers of the heart enlarge and weaken.
  • In restrictive cardiomyopathy, the heart muscle gets stiff.
  • In hypertrophic cardiomyopathy, the heart muscle thickens and cannot relax properly.

When the heart muscle is not pumping normally, the rest of the body may not get enough blood, oxygen, or nutrients (heart failure). These changes in the heart muscle can lead to atrial fibrillation (a type of arrhythmia or irregular heartbeat) or to other heart problems.

Treatment for cardiomyopathy depends on the type of heart problems that occur as a result of the changes in the heart muscle.

Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
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