Patient monitoring apparatus and method for determining volume responsiveness of a monitored patient
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United States of America Patent
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Dec 14, 2010
Grant Date -
Dec 13, 2007
app pub date -
Apr 5, 2007
filing date -
Apr 19, 2006
priority date (Note) -
Expired
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Abstract
From the global end-diastolic volume GEDV and the global ejection fraction GEF the patient monitor (4) determines a corrected global end-diastolic volume cGEDV according to cGEDV=GEDV/f(GEF) which is used as a novel parameter for volume responsiveness of the patient (3). In the above formula, f(GEF) is a correction function depending on global ejection fraction GEF. Further, from the right ventricular end-diastolic volume RVEDV and the right ventricular ejection fraction RVEF the patient monitor (4) determines a corrected right ventricular end-diastolic volume cRVEDV according to cRVEDV=RVEDV1f(RVEF) which is used as another novel parameter for volume responsiveness of the patient (3). In the above formula, f(RVEF) is a correction function depending on right ventricular ejection fraction RVEF.
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