What is myocarditis; how is it caused?

Also called cardiomyopathy in this there is deranged function of myocar­dium. Cardiomyopahty is of three kinds- congestive cardiomyopathy, hypertropic cardiomyopathy and restrictive cardiomyopathy. In conges­tive cardiomyopathy the myocardium becomes fibrous and lacks the con­tractile power.

Hence heart is dialated. Hypertropic cardiomyopathy is hereditary generally. Septum is hypertrophied and may cause obstruction of left ventricular flow. In restrictive cardiomyophaty the diastolic func­tion is deranged but systolic function is normal. The rigid myocardium restricts diastolic filling of the blood. Restrictive myocardiopahty is mostly caused by fibrosis.