What Are the Types of Heart Failure?

Systolic dysfunction (or systolic heart failure) occurs when the heart muscle does not contract with sufficient force, so there is minimum oxygen-rich blood that is pumped throughout the body.
Diastolic dysfunction (or diastolic heart failure) occurs when the heart contracts normally, but the ventricles do not relax properly or are stiff, and less blood enters the heart during normal filling.
A calculation done during an echocardiogram called the ejection fraction (EF) is used to measure how good your heart pumps with every beat to help determine if systolic or diastolic dysfunction is present. Your doctor can discuss which condition you have.