|1. You have heart
failure that causes the heart to get bigger and pump poorly. This
is called cardiomypathy.
The cause may be unknown.
2. Your heart muscles have been hurt by heart attacks. This causes the heart to pump poorly and may cause frequent or severe chest pain.
3. You were born with a heart that does not work well. You may get a new heart when your old heart can no longer be helped with medicines or other surgeries.