Method and apparatus for continuous measurement of cardiac output
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United States of America Patent
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Aug 21, 1990
Grant Date -
N/A
app pub date -
Dec 23, 1988
filing date -
Dec 23, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of continuously monitoring cardiac output of a patient includes the step of determining a value of a cardiac output constant which is assumed to remain stable over the period of interest and is determined as a function of values of various measured parameters of the patient. These values may include thermodilution cardiac output, carbon dioxide production, arterial and mixed venous oxygen saturation and hemoglobin. Thereafter, cardiac output is continuously determined employing the calculated cardiac output constant and monitored values of carbon dioxide production and arterial and mixed venous oxygen saturation. Oxygen transport may also be monitored on a continuous basis.
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