What is Dilated Cardiomyopathy?

Cardiomyopathy is a disease that affects the heart muscle. In dilated cardiomyopathy (DCM) the heart muscle becomes thin, the left ventricle (lower left chamber of the heart) becomes enlarged (dilated) and the heart is unable to squeeze efficiently, reducing the amount of blood that is pumped to the body.

Dilated Cardiomyopathy illustration.