Dilated Cardiomyopathy (DCM) is a condition in which the heart’s ability to pump blood is impaired due to the enlargement and weakening of the heart’s ventricles. The heart muscle becomes stretched and thinned, making it difficult for the heart to pump blood efficiently. As a result, blood can back up into the lungs and other parts of the body, leading to symptoms like shortness of breath, fatigue, swelling in the legs, and fluid retention.
DCM can be caused by a variety of factors, including genetic mutations, infections (such as viral myocarditis), chronic high blood pressure, alcohol or drug abuse, and certain medications. In some cases, the cause remains unknown, which is referred to as idiopathic dilated cardiomyopathy.
Common symptoms include breathlessness, especially during exertion or when lying flat, irregular heartbeats, lightheadedness, and a general feeling of weakness. In severe cases, DCM can lead to heart failure, stroke, or arrhythmias.
Diagnosis typically involves imaging tests such as echocardiograms, MRI scans, and blood tests to assess heart function. Treatment for DCM often includes medications like ACE inhibitors, beta-blockers, and diuretics to manage symptoms and prevent complications. In more severe cases, implantable devices like pacemakers or defibrillators, or even heart transplants, may be considered.
Early detection and treatment are key to improving outcomes for individuals with dilated cardiomyopathy. Regular follow-up with a cardiologist is important for managing the condition and preventing progression to heart failure.