What is the typical value for End-Systolic Volume (ESV)?

End-Systolic Volume (ESV) refers to the volume of blood remaining in the ventricles at the end of systole, just before the heart fills again during diastole. A typical value for ESV in a healthy adult heart is approximately 50 ml. This value reflects the amount of blood that is not ejected from the ventricle during contraction, which is influenced by factors such as heart muscle contractility, preload, and afterload.

In a healthy adult, the normal stroke volume (the amount of blood ejected during each heartbeat) combined with an average end-diastolic volume helps establish that approximately 50 ml is a standard measure for ESV. This value can fluctuate based on numerous physiological factors, such as exercise, heart disease, or individual variations in heart anatomy and function, but 50 ml serves as a commonly accepted normative figure in clinical assessments.

Understanding ESV is essential in evaluating heart performance and health, allowing clinicians to identify potential issues related to cardiac output and overall cardiovascular function.