Inflammation of the myocardium due to infection or damage caused by radiation or chemicals is called myocarditis. Many types of myocarditis will resolve with bed rest, drug therapy, and fluid restriction. Congestive cardiomyopathy is a feature of beriberi , alcoholism, diabetes , drug toxicity and some neuromuscular disorders. Enlargement of the heart that is seen is a result of dialation and enlargement of the heart that can no longer pump efficiently. The symptoms are then characteristic of double sided congestive heart failure.
Hypertrophic cardiomyopathy is an asymmetric increase in ventricular muscle mass.
The ventricular septum is especially enlarged causing the left ventricle to be misshapen and obstructing the blood flow from the ventricle. Symptoms are basically those of left congestive heart failure. Coronary artery disease Coronary artery disease occurs when the interior of the vessels supplying the heart become blocked and restrict blood flow to the heart. It occurs when fatty plaques are formed inside the lumen of the arteries. Blood clots can form at the plaque and cut off the flow of blood.