What is the prognosis for cardiomyopathy?

Depends: It depends on how severe it is. It can be very mild or very severe. In general many people with treatment can do quite well but the potential for deterioration is there.

Various causes: Cardiomyopathy is a generic term for abnormal heart muscle. It can be caused by infections, poisons, genetics, and physiologic causes. There are both weak heart and 'strong heart' cardiomyopathies. The cause of someone's cardiomyopathy requires more information than the term cardiomyopathy. The prognosis depends on the cause, type and physiology of the individual cardiomyopathy.