Dilated cardiomyopathy is a condition in which the heart becomes weakened and enlarged, and it cannot pump blood efficiently. This decreased heart
function can affect the lungs,
liver, and other body systems. When the cause of the dilated cardiomyopathy can be found, that condition can be treated. The outcome or prognosis varies. Some people remain in a stable condition, some continue to gradually get sicker, and others quickly get worse.