Dilated Cardiomyopathy

Your input helps shape an effective treatment plan.

JoAnne M. Foody, MD, FACC, CardioSmart Editor-in-Chief

Usually when we say someone has a “big heart,” it’s a good thing. However, if your actual heart muscle is enlarged, it means you can’t pump blood through your body as efficiently.  This is what happens if you have a condition called dilated cardiomyopathy. Your heart muscle stretches (dilates) and weakens. Cardiomyopathy mostly affects your left ventricle—the main pumping chamber of your heart.

Dilated cardiomyopathy can be caused by a number of factors. For example, you can develop it as a result of health conditions like coronary artery disease or high blood pressure, or it can result from health behaviors like alcohol abuse. It can affect any person at any age, including pregnant women, but is most common in adult men.

Dilated cardiomyopathy may not cause any symptoms at first. Over time, if your heart is not pumping as well as it should, you may feel very tired or you may find yourself short of breath after bouts of activity or after lying down.  Dilated cardiomyopathy can lead to problems such as irregular heart rhythms, stroke, heart attack, and heart failure.

An important part of your treatment will be taking good care of yourself. Use this condition center to learn more about dilated cardiomyopathy. You can keep up with the latest research, find questions to ask your doctor, and get tips to help you feel your best.

Dilated Cardiomyopathy News & Events

Experts Emphasize the Importance of Cardiac Rehabilitation

Jan 26, 2015
Despite its value and importance, cardiac rehab is vastly underutilized by patients.
CardioSmart News

Physician Sleep Deprivation Has No Significant Effect on Angioplasty Outcomes

Jan 20, 2015
According to a new study, patients undergoing angioplasty performed by a sleep-deprived doctor fared about the same as those whose doctor was rested.

Report Raises Awareness for Health Effects of Air Pollution

Dec 23, 2014
A thorough review of studies highlights the negative impact of air pollution on heart health.

Daily Aspirin Fails to Prevent Heart Attack, Stroke in Older Adults Free of Heart Disease

Dec 23, 2014
A large Japanese study finds no association between once-daily, low-dose aspirin and risk for heart attack, stroke or death in older adults.

Keeping Added Calories in Check: Sugars and Sweeteners

Dec 03, 2014
According to the U.S. Department of Agriculture (USDA), Americans today consume nearly 20% more added sugar in their daily diet than they did 40 years ago.

Risks and Benefits of Extending Drug Treatment After Stent

Nov 20, 2014
Lengthening anti-clotting treatment after stent implantation may prevent heart attacks but increases risk of bleeding, finds new study.

Head-to-Head Comparison of Big-Name diets

Nov 19, 2014
No single big-name diet is superior when it comes to long-term weight loss, finds study.

Exposure to Secondhand Smoke Overlooked in Heart Patients

Nov 18, 2014
Secondhand smoke worsens outcomes for patients living with heart disease, but is often overlooked.

Lupus Linked to Congenital Heart Defects

Nov 13, 2014
Study finds that women with lupus are almost 3 times more likely to have a child with a congenital heart defect.

Study Reveals Paradox of Cigarette Sales in Pharmacies

Oct 31, 2014
Patients at risk of smoking-related diseases often purchase cigarettes at the same pharmacy used to fill prescription medications.

Healthy Fats Lower Cholesterol, Despite Weight Gain

Oct 23, 2014
Healthy fats help offset the negative impact of weight gain on heart health, finds a recent study.

Rapid Weight Loss is Not So Bad, After All

Oct 23, 2014
Gradual vs. rapid weight loss has little impact on long-term weight control.

Keeping Radiation to a Minimum for Heart Patients

Oct 10, 2014
With radiation exposure a hot topic in recent years, here are strategies for enhancing radiation safety in heart imaging.

Childhood Risk Factors Have Lifelong Impact on Heart Health

Oct 10, 2014
Weight and blood pressure during childhood have a long-lasting impact on heart function later in life.

Obesity Rates Plateau in U.S., but Waistlines Continue to Expand

Sep 24, 2014
More than half of American adults have abdominal obesity, according to national trends from the last decade.

Do You Know Your Heart-Health ABC's?

Sep 24, 2014
Improving heart health just got a little bit simpler, thanks to the ABC’s of heart disease prevention.

Self-Management Improves Outcomes for Patients with Heart Valve Implants

Sep 23, 2014
Empowering patients with heart valve implants to manage their own health reduces risk of complications, finds study.

Preventing Sudden Cardiac Death in Young Adults

Sep 19, 2014
A recent scientific statement weighed the pros and cons of using tests in healthy individuals between 12-25 years old.

Aspirin Offers Safe, Affordable Option to Prevent Blood Clots

Sep 12, 2014
A new study confirms that aspirin is a safe and effective treatment for patients with a history of venous thromboembolism.

Weight Watchers and Atkins Equally as Effective

Sep 05, 2014
There’s little difference between trademarked diet programs, finds new study.

Less Educated Smokers Have Greatest Stroke Risk

Sep 05, 2014
Traditional risk factors for stroke are especially dangerous in poorly educated adults, finds study.

Enter the "I am CardioSmart" Patient Contest

Sep 02, 2014

Tell us how you are living well with heart disease for a chance to win a trip to San Diego, CA.

Coca-Cola Family Track Walk in Richmond, VA

Aug 29, 2014
A fellow of the American College of Cardiology will be at Richmond International Raceway on Sept. 6 to share tips on heart health and the benefits of an active lifestyle.

Heart Group Says E-Cigarettes Require Strict Regulation

Aug 28, 2014
Electronic cigarettes should be included in smoke-free air laws, according to the American Heart Association.

Folic Acid Deficiency Rare in U.S.

Aug 19, 2014
Study finds folic acid deficiency is extremely rare, making routine tests unnecessary in the general population.

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