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Determination of right ventricular ejection fraction by thermodilution technique — a comparison to biplane cineventriculography

Intensive Care Medicine volume 14, pages 461–466 (1988)Cite this article

Abstract

Determination of right ventricular ejection fraction (RVEF) provides information about global right ventricular function, which may be important for the management of patients with various heart diseases. Right ventricular ejection fraction can be determined by new thermodilution techniques using fastresponse thermistors. To evaluate the validity of these methods, thermodilution measurements were compared with biplane cineventriculography in 22 patients undergoing cardiac catheterization. In all patients standard deviation of RVEF was below 5%. Mean RVEF, determined by thermodilution, was 52%±9%, ranging from 32% to 71% and correlated significantly with the results of angiography (RVEF: 52%±9%) (r=0.80, SEE±5%, n=22, p>0.001). Correlation was good especially in patients with small right ventricles (>60ml) (r=0.91, SEE±5%, n=13, p>0.001), lower heart rates (>65/min) (r=0.84, SEE=±6%, n=12, p>0.001) and cardiac output below 5.5 l/min (r=0.88, SEE±6%, n=11, p>0.001). Thus, if valid catheter placement is possible, right ventricular ejection fraction can be determined by thermodilution technique with good reproducibility and sufficient accuracy compared to biplane angio. Validation of this method in larger patient populations with various heart diseases is necessary.

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Affiliations

  1. Division of Cardiology, Department of Medicine, Tübingen University, FRG

    W. Voelker, H. P. Gruber, O. Ickrath, R. Unterberg & K. R. Karsch

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  1. W. Voelker
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  2. H. P. Gruber
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  3. O. Ickrath
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  4. R. Unterberg
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  5. K. R. Karsch
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Voelker, W., Gruber, H.P., Ickrath, O. et al. Determination of right ventricular ejection fraction by thermodilution technique — a comparison to biplane cineventriculography. Intensive Care Med 14, 461–466 (1988). https://doi.org/10.1007/BF00256960

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  • DOI: https://doi.org/10.1007/BF00256960

Key words

  • Right ventricle
  • Ejection fraction
  • Thermodilution method