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. 1981 Jul;46(1):17–22. doi: 10.1136/hrt.46.1.17

Relations between ejection fraction and ventricular volume, and their alteration by chronic beta-blockade.

P L Kerkhof, J Baan, B Buis, A C Arntzenius
PMCID: PMC482596  PMID: 6115659

Abstract

This study describes the newly discovered relation between ejection fraction and end-systolic volume index (ESVI) of the left ventricle as obtained by angiography at the time of cardiac catheterisation. Linear regression analysis shows that ejection fraction (%)=82.0-0.62 ESVI (ml/m2) but the correlation for patients receiving beta-adrenergic blocking drugs is significantly lower compared with the untreated group. Non-linear analysis, applied to cover also the asymptotic range for ejection fraction less than 20%, shows similar results. The good relation between the two indices indicates that the index ejection fraction may derive its clinical importance directly from the more fundamental index end-systolic volume index by virtue of the operation of the beta-adrenergic system on the heart.

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Selected References

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