Abstract
A non-invasive continuous measurement of hemoglobin (Hb) by pulse co-oximetry (SpHb) using Radical-7® (Masimo Corporation, CA, USA) is a newly developed method of measuring total Hb concentration. Previously, the accuracy of SpHb in clinical settings was reported (1). However, it has been also reported that SpHb has poor correlation with arterial Hb after cardiac surgery (2). Here we examined the accuracy of SpHb measured by New Radical-7®, which has new software version for measurement of total Hb, in cardiac surgery patients using cardiopulmonary bypass (CPB).
Highlights
A non-invasive continuous measurement of hemoglobin (Hb) by pulse co-oximetry (SpHb) using Radical-7® (Masimo Corporation, CA, USA) is a newly developed method of measuring total Hb concentration
Forty-six patients undergoing cardiac surgery using hypothermic cardiopulmonary bypass (CPB) were included in this prospective study
Our study showed that SpHb measured by New Radical-7® deviated from arterial Hb measured by Radiometer ABL850® after CPB; the difference did not depend on peripheral perfusion evaluated with perfusion index
Summary
A non-invasive continuous measurement of hemoglobin (Hb) by pulse co-oximetry (SpHb) using Radical-7® (Masimo Corporation, CA, USA) is a newly developed method of measuring total Hb concentration. The accuracy of SpHb in clinical settings was reported (1). It has been reported that SpHb has poor correlation with arterial Hb after cardiac surgery (2). We examined the accuracy of SpHb measured by New Radical-7®, which has new software version for measurement of total Hb, in cardiac surgery patients using cardiopulmonary bypass (CPB)
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