CausesBy Mayo Clinic Staff
The cause of dilated cardiomyopathy often can't be determined (idiopathic). However, numerous factors can cause the left ventricle to dilate and weaken, including:
April 28, 2017
- Congenital heart defects
- Infections, including those caused by bacteria, viruses, fungi and parasites
- Drug and alcohol abuse
- Certain cancer medications
- Exposure to toxins, such as lead, mercury and cobalt
- Coronary artery disease or heart attack
- High blood pressure (hypertension)
- Complications of late-stage pregnancy
- Cardiomyopathy. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/cm/cm_all.html. Accessed June 18, 2014.
- Weigner M, et al. Causes of dilated cardiomyopathy. http://www.uptodate.com/home. Accessed June 18, 2014.
- Colucci WS. Evaluation of the patient with heart failure or cardiomyopathy. http://www.uptodate.com/home. Accessed June 18, 2014.
- Dilated cardiomyopathy (DCM). American Heart Association. http://www.heart.org/HEARTORG/Conditions/More/Cardiomyopathy/Dilated-Cardiomyopathy_UCM_444187_Article.jsp. Accessed June 18, 2014.
- Dilated cardiomyopathy. American Stroke Association. http://www.strokeassociation.org/idc/groups/heart-public/@wcm/@hcm/documents/downloadable/ucm_312224.pdf. Accessed June 18, 2014.