Cardiomyopathy Causes Symptoms Of Treatment
Cardiomyopathy Causes Symptoms Of Treatment
Cardiomyopathy including peripartum cardiomyopathy and alcoholic cardiomyopathy which involves dilation or enlargement of the hearts ventricles and an increase in the size of the heart overall. This condition may be caused by heart disease viruses abuse of illicit drugs and alcohol and genetic disorders. Additionally idiopathic dilated cardiomyopathy also called dilated cardiomyopathy of unknown cause is not uncommon. Dilated cardiomyopathy causes about 10000 deaths annually in the United States and is a major cause for heart transplantation.
Cardiomyopathy refers to diseases of the heart muscle. These diseases enlarge your heart muscle or make it thicker and more rigid than normal. In rare cases scar tissue replaces the muscle tissue. Some people live long healthy lives with cardiomyopathy. Some people don’t even realize they have it. In others however it can make the heart less able to pump blood through the body. Cardiomyopathy is a disease of the heart muscle. There are three main types of cardiomyopathy dilated hypertrophic and restrictive all of which affect your heart’s muscle often making it difficult to pump blood and deliver it to the rest of your body. There are many causes of cardiomyopathy including coronary artery disease and valvular heart disease.
Causes
About 2030 of dilated cardiomyopathy cases have been reported as familial although with incomplete and agedependent penetrance and linked to a diverse group of more than 20 loci and genes. Although genetically heterogeneous the predominant mode of inheritance for dilated cardiomyopathy is autosomal dominant with Xlinked autosomal recessive and mitochondrial inheritance less frequent.
Cardiomyopathy can be caused by viral infections heart attacks alcoholism longterm severe high blood pressure nutritional deficiences particularly selenium thiamine and Lcarnitine systemic lupus erythematosus celiac disease and endstage kidney disease.
The most common cause of cardiomyopathy in developed nations is coronary artery disease. Heart attacks cause death of heart muscle by obstruction of a coronary artery. While the damage is localized to the region of muscle supplied by that artery within a few months the entire left ventricle dilates or remodels to compensate for the damage. With a small heart attack the amount of ventricular dilation is minimal.
Symptoms
The symptoms of cardiomyopathy include shortness of breath on exertion dizziness fainting and angina pectoris. Angina is chest pain or discomfort caused by reduced blood supply to the heart muscle. Some people have cardiac arrhythmias. These are abnormal heart rhythms that in some cases can lead to sudden death. Often an implanted cardioverter defibrillator ICD is needed to shock the heart to restart a normal heart rhythm and prevent sudden dealth. The obstruction to blood flow from the left ventricle increases the ventricle’s work and a heart murmur may be heard.
Treatment
Antiarrhythmic drugs may be given to prevent abnormal heart rhythms. Most of these drugs are prescribed in small doses. Doses are increased in small increments because if the dose is too large an antiarrhythmic drug may worsen heart rhythm abnormalities or depress pumping function. Some people have an abnormality of the electrical conduction in the heart which can be helped by a pacemaker. Doctors may consider an implantable cardioverterdefibrillator pacemaker in patients with persistent poor heart function and an increased risk of sudden death.
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