End-diastolic_volume

End-diastolic volume

End-diastolic volume

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In cardiovascular physiology, end-diastolic volume (EDV) is the volume of blood in the right or left ventricle at end of filling in diastole which is amount of blood present in ventricle at the end of diastole.[1] Because greater EDVs cause greater distention of the ventricle, EDV is often used synonymously with preload, which refers to the length of the sarcomeres in cardiac muscle prior to contraction (systole). An increase in EDV increases the preload on the heart and, through the Frank-Starling mechanism of the heart, increases the amount of blood ejected from the ventricle during systole (stroke volume).[citation needed]

Sample values

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The right ventricular end-diastolic volume (RVEDV) ranges between 100 and 160 mL.[5] The right ventricular end-diastolic volume index (RVEDVI) is calculated by RVEDV/BSA and ranges between 60 and 100 mL/m2.[5]

See also


References

  1. Feger, Joachim. "End-diastolic volume | Radiology Reference Article | Radiopaedia.org". Radiopaedia. Retrieved 8 August 2022.
  2. Maceira A (2006). "Normalized Left Ventricular Systolic and Diastolic Function by Steady State Free Precession Cardiovascular Magnetic Resonance". Journal of Cardiovascular Magnetic Resonance. 8: 417–426. doi:10.1080/10976640600572889. (subscription required)
  3. Normal ranges for heart rate are among the narrowest limits between bradycardia and tachycardia. See the Bradycardia and Tachycardia articles for more detailed limits.
  4. "Normal Hemodynamic Parameters – Adult" (PDF). Edwards Lifesciences LLC. 2009.

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