What are the 3 main causes of dilated cardiomyopathy?
What causes DCM?
- Most cases of dilated cardiomyopathy are idiopathic (an exact cause is not known)
- Sometimes a viral illness may be responsible.
- Occasionally it may be inherited (familial cardiomyopathy)
- Heart valve disease (valvular cardiomyopathy)
- Alcoholism (heavy drinking, alcoholic cardiomyopathy)
Why does dilated cardiomyopathy occur?
The most common causes of dilated cardiomyopathy are: Heart disease caused by a narrowing or blockage in the coronary arteries. Poorly controlled high blood pressure.
Does dilated cardiomyopathy cause ventricular tachycardia?
Dilated cardiomyopathy is a highly heterogeneous disorder that can predispose to ventricular tachyarrhythmias such as VT. Its genetic causes are myriad and involve mutations in genes coding for proteins that make up cardiac sarcomeres, including actin, myosin, and troponin.
What drugs cause dilated cardiomyopathy?
Certain toxins such as cobalt. Certain drugs (such as cocaine and amphetamines) and two medicines used to treat cancer (doxorubicin and daunorubicin)
What virus can cause dilated cardiomyopathy?
These results suggest that hepatitis C virus infection is found more frequently than enterovirus infection and that hepatitis C virus is an important causal agent in the pathogenesis of dilated cardiomyopathy. In this study, hepatitis C virus infection was associated with the occurrence of dilated cardiomyopathy.
What drugs can cause dilated cardiomyopathy?
What is dilated cardiomyopathy?
Dilated cardiomyopathy is a disease of the heart muscle that usually starts in your heart’s main pumping chamber (left ventricle). The ventricle stretches and thins (dilates) and can’t pump blood as well as a healthy heart can. Over time, both ventricles may be affected.
What causes heart enlargement?
An enlarged heart may be the result of a short-term stress on the body, such as pregnancy, or a medical condition, such as the weakening of the heart muscle, coronary artery disease, heart valve problems or abnormal heart rhythms.
Why does cardiomyopathy cause VT?
Ventricular tachycardia most often occurs when the heart muscle has been damaged and scar tissue creates abnormal electrical pathways in the ventricles. Causes include: Heart attack. Cardiomyopathy or heart failure.
Why does dilated cardiomyopathy cause arrhythmia?
Patients with dilated cardiomyopathies (DCM) face a significant burden of arrhythmias, including conduction defects such as atrioventricular block and interventricular delay in the form of left bundle branch block, resulting in altered electromechanical coupling that can exacerbate heart failure.
What are the signs and symptoms of dilated cardiomyopathy?
Great fatigue
Can a person with dilated cardiomyopathy be cured?
There is no cure for cardiomyopathy, including dilated cardiomyopathy. Though it canât be entirely cured, treatment can help control signs caused by it and prevent the disease from becoming worse. Medication can ease blood flow, reduce the pounding heartbeats, and stop fluid from swelling in the patientâs feet, ankles and legs.
Can You reverse a dilated cardiomyopathy?
Dilated cardiomyopathy sometimes can be reversed if it is caused by a treatable condition. Most cases of hypertrophic and restrictive cardiomyopathy are persistent. They can get worse over time. The best way to prevent cardiomyopathy is to prevent the diseases that cause it. Know your risk factors for coronary artery disease.
Which viral infections may cause dilated cardiomyopathy?
In North America, infection with coxsackie B virus is the most common cause of viral cardiomyopathy. HIV infection also can cause cardiomyopathy. In other parts of the world, other viral infections are more common causes. Occasionally, dilated cardiomyopathy results from a bacterial infection, such as Chagas disease .
