Simultaneous determination of the stroke volume and the left ventricular residual fraction with the fiberoptic- and thermodilution method

Simultaneous measurements of the concentration of dye by a fiberoptic catheter and of the temperature by a thermistor catheter were obtained in dogs. No significant difference for cardiac output and stroke volume was found. The slightly but significant higher residual fraction by thermodilution than...

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Published inCardiovascular research Vol. 5; no. 1; pp. 136 - 140
Main Authors Bussmann, W. D., Krayenbühl, H. P., Rutishauser, W.
Format Journal Article
LanguageEnglish
Published England Oxford University Press 01.01.1971
Subjects
Animals
Cardiac Output
Cardiac Volume
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Summary:Simultaneous measurements of the concentration of dye by a fiberoptic catheter and of the temperature by a thermistor catheter were obtained in dogs. No significant difference for cardiac output and stroke volume was found. The slightly but significant higher residual fraction by thermodilution than by fiberoptic technique is caused by cold transfer between ventricular myocardium and cavity. It becomes evident after the fifth beat.
Bibliography:2Address for reprints: Dr. W. Rutishauser, Medical Policlinic, Raemistrasse 100 8006 Zürich, Switzerland.
Supported by a grant from the Swiss National Foundation and a grant from the Hartmann-Müller Foundation for Medical Research.
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ArticleID:5-1-136
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ObjectType-Feature-2
content type line 23
ISSN:0008-6363
1755-3245
DOI:10.1093/cvr/5.1.136