The outlook depends on many different things, including:
- Cause and type of cardiomyopathy
- How well the condition responds to treatment
- The severity of the heart problem
Heart failure is usually a long-term (chronic) illness. It may get worse over time. Some people develop severe heart failure. In this case, medicines, surgery, and other treatments may no longer help.
Patients with certain types of cardiomyopathy are at risk for dangerous heart rhythm problems.