ejection fraction

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English[edit]

Noun[edit]

ejection fraction (plural ejection fractions)

  1. (cardiology) The proportion of blood ejected out of the left ventricle with each heartbeat.
    • 1964 January, William C. Elliott, Francis J. Lane, Richard Gorlin, “Measurement of left ventricular volume in man by thermodilution”, in The American Journal of Cardiology, volume 13, number 1, page 106:
      Isoproterenol produced vasodilatation and increased rate, with reduction of EDV and increase in ejection fraction in normal subjects.
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