SymptomsBy Mayo Clinic staff
If you have dilated cardiomyopathy, you're likely to have signs and symptoms when the disease has caused heart failure or arrhythmias. Dilated cardiomyopathy symptoms include:
- Fatigue and weakness
- Shortness of breath (dyspnea) when you're active or lying down
- Reduced ability to exercise
- Lightheadedness, dizziness or fainting
- Persistent cough or wheezing, especially when lying down
- Swelling (edema) in your legs, ankles and feet
- Swelling of your abdomen (ascites)
- Sudden weight gain from fluid retention
- Lack of appetite
- Sensation of rapid, fluttering or pounding heartbeats (palpitations)
- Pale skin
When to see a doctor
If you experience shortness of breath or other symptoms of dilated cardiomyopathy, see your doctor. Call 911 or your local emergency number if you feel chest pain that lasts more than a few minutes or have severe difficulty breathing.
If a member of your family has been diagnosed with dilated cardiomyopathy, talk to your doctor about having you or other family members screened for dilated cardiomyopathy. Early detection may benefit people with inherited forms of dilated cardiomyopathy who have no apparent signs or symptoms.
- Jeffries JL, et al. Dilated cardiomyopathy. The Lancet. 2010;375:752.
- Dilated cardiomyopathy. American Heart Association. http://www.heart.org/idc/groups/heart-public/@wcm/@hcm/documents/downloadable/ucm_312224.pdf. Accessed July 3, 2011.
- Cardiomyopathy. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/cm/cm_all.html. Accessed July 3, 2011.
- Mestroni L, et al. Dilated cardiomyopathies. In: Fuster V, et al. Hurst's The Heart. 13th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/content.aspx?aID=7811432. Accessed July 3, 2011.
- Bashore TM, et al. Heart disease. In McPhee SJ, et al. Current Medical Diagnosis & Treatment 2011. 50th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/content.aspx?aID=3671. Accessed July 3, 2011.
- Hunt SA, et al. 2009 Focused update incorporated into the ACC/AHA 2005 guidelines for the diagnosis and management of heart failure in adults: A report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Journal of the American College of Cardiology. 2009;53:e1.
- Grogan M (expert opinion). Mayo Clinic, Rochester, Minn. July 31, 2011.