End-systolic volume

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End-systolic volume (ESV) is the volume of blood in the left ventricle at the end of contraction, or systole, and the beginning of filling, or diastole. End systolic volume can be used clinically as a measurement of the adequacy of cardiac emptying, related to systolic function. On an electrocardiogram, or ECG, the end-systolic volume will be seen at the end of the T wave. Clinically, ESV can be measured using two-dimensional electrocardiography. ESV is the lowest volume of blood in the ventricle at any point in the cardiac cycle. Along with end diastolic volume, ESV determines the stroke volume, or output of blood by the heart during a single phase of the cardiac cycle.^[1]

[edit] References

[edit] See also

• End-diastolic volume
• Stroke volume

v • d • e Cardiovascular system, physiology: cardiovascular physiology Volumes Preload - Afterload - End-systolic volume - End-diastolic volume - Frank-Starling law of the heart Interactions Cardiac output - Cardiac cycle - Wiggers diagram - Pressure volume diagram Tropism Chronotropic - Dromotropic - Inotropic - Batmotropic - Lusitropic Hemodynamics Baroreflex - Kinin-kallikrein system - Renin-angiotensin system - Vasoconstrictors - Vasodilators - Compliance - Vascular resistance Other Electrical conduction system of the heart (Cardiac action potential) - Heart sounds - Pulse - Blood flow