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Comparative Study
The measurement of right ventricular ejection fraction by thermodilution. A comparison of values obtained using differing injectate ports.
- S Cockroft and P S Withington.
- Anaesthetics Unit, Royal London Hospital Medical College, Whitechapel, London.
- Anaesthesia. 1993 Apr 1; 48 (4): 312-4.
AbstractThermodilution measurements of cardiac output and right ventricular ejection fraction were obtained using a rapid response pulmonary artery catheter. Values were compared when injectate was administered via either a cannula within the right internal jugular vein or the dedicated right atrial port of the pulmonary artery catheter. Mean (SD) bias for cardiac output and right ventricular ejection fraction measurements were 0.08 (0.32) l.min-1 and 2.6 (6.6)% respectively. We therefore conclude that both injectate techniques will provide similar values for cardiac output but dissimilar values for right ventricular ejection fraction measurement.
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