End-Diastolic Pressure (EDP): Understanding Ventricular Relaxation

When the ventricles are relaxed, the pressure in the ventricles is called the end-diastolic pressure (EDP). EDP is the lowest pressure that occurs in the ventricles during the cardiac cycle. It is the pressure that the ventricular walls are stretched to when they are completely relaxed and filled with blood. EDP is typically between 5 and 15 mmHg.