Ever wonder what happens to your heart after you have a heart attack, assuming you survive? Your heart starts fixing itself, or remodeling, a sign of permanent cardiac injury. Your heart will never be the same. Heart remodeling implies the heart attack caused detrimental changes in the size, function, or shape of the heart because the heart attack killed part of the pump and thus the pump has to be rebuilt (remodeled). The more remodeling, the more damage the heart attack inflicted.