Why the study?
Does the dye dilution method accurately measure cardiac output compared to the direct Fick method in patients with circulatory disorders?
Does the dye dilution method accurately measure cardiac output compared to the direct Fick method in patients with circulatory disorders?
This study aimed to evaluate the reliability of the dye dilution method compared to the direct Fick method for measuring cardiac output in patients with circulatory disorders.
Answers are grounded in this paper and cite their sources.
Cross-sectional dye dilution–Fick comparison in circulatory disorders leaves measurement reliability unresolved; prospective studies required before clinical use.
The great advancements in cardiac surgery have increased the demand for hemo-dynamic studies during operation and in the immediate postoperative period. For measurement of cardiac output on these occasions the dye dilution method seems to be the most suitable. As a result of previous reports suggesting a systematic error in determining cardiac output with this method (Friedlich, Heimbecker & Bing 1950, Doyle, Wilson, Lepine & Warren 1953, and Smith, Wilder & Fox 1954), several investigators have since compared the dye dilution technique with the direct Fick method (see Wade & Bishop 1962). The aim of the present investigation was to examine further the reliability of the dye dilution technique in a series of patients with different types of circulatory disorders (further experiments are reported separately, Grenvik 1966).
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Åke Grenvik (1966) studied this question.
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