Diastolic Heart Failure — Abnormalities in Active Relaxation and Passive Stiffness of the Left Ventricle

Abstract
Patients with signs and symptoms of heart failure and a normal left ventricular ejection fraction are said to have diastolic heart failure. It has traditionally been thought that the pathophysiological cause of heart failure in these patients is an abnormality in the diastolic properties of the left ventricle; however, this hypothesis remains largely unproven.