ESV stands for what in cardiac physiology?

In cardiac physiology, ESV stands for End Systolic Volume. This term refers to the volume of blood remaining in the ventricles at the end of systole, which is the phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. ESV is a crucial component in assessing cardiac function, particularly in understanding how much blood the heart has ejected and how much is left in the ventricles after contraction.

ESV plays a significant role in determining other important cardiac parameters, such as stroke volume (the amount of blood ejected by the heart during each contraction) and ejection fraction (the percentage of the end-diastolic volume that is ejected with each heartbeat). By analyzing ESV, medical professionals can better evaluate heart health and functionality, helping to identify potential heart conditions.