[en] This study was designed to test the applicability and the reproducibility of the thermodilution method in the measurement of right ventricular ejection fraction (EF), end-diastolic volume (EDV) and end-systolic volume (ESV) in unsedated cattle. In the 16 healthy calves studied, it was possible, using a fast response thermodilution catheter, to obtain characteristic exponential steplike washout curves, allowing the calculation of right ventricular EF, EDV and ESV. Five to 10 successive thermodilution curves were recorded within a few minutes and two to five similar sets of measurements were performed throughout the same day to test the reproducibility of the technique. The same protocol was repeated the following day. Right ventricular EF, EDV and ESV were reproducible successively, throughout a given day and on following days. The mean intraset, intraday and interdays coefficients of variation ranged from a mean of 4.0 (SD 4.1) per cent to a mean of 18.2 (SD 7.9) per cent. Values of right ventricular volumes and EF agreed with those previously reported in various animal species. Thermodilution was, therefore, shown to be a useful method for measuring with a satisfactory reproducibility, right ventricular EF, EDV and ESV in the unsedated healthy calf
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology Veterinary medicine & animal health
Author, co-author :
Amory, Hélène ; Université de Liège - ULiège > Département clinique des animaux de compagnie et des équidés > Médecine interne des équidés
Mc Entee, Kathleen ; Université de Liège - ULiège > Département clinique des animaux de compagnie et des équidés > Sémiologie et clinique médicale des petits animaux
Linden, Annick ; Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Santé et pathologies de la faune sauvage
Desmecht, Daniel ; Université de Liège - ULiège > Département de morphologie et pathologie > Pathologie spéciale et autopsies
Lekeux, Pierre ; Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie
Language :
English
Title :
Measurement of Right Ventricular Ejection Fraction and Volume by the Thermodilution Technique in the Unsedated Calf
Publication date :
1994
Journal title :
Research in Veterinary Science
ISSN :
0034-5288
eISSN :
1532-2661
Publisher :
British Veterinary Association, London, United Kingdom
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