Validation of noninvasive hemoglobin measurements using co-oximetry in anesthetized dogs

New technology allows noninvasive measurement of total hemoglobin (Hb) in humans through use of multiple wavelength co-oximetry. This monitor is now available to the veterinary market but no studies have been performed to validate its use in animals. This study investigated the use of co-oximetry to...

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Published in:Canadian veterinary journal 2016-11, Vol.57 (11), p.1161-1165
Main Authors: Read, Matt R, Rondeau, Jenna, Kwong, Grace P S
Format: Article
Language:English
Subjects:
Anesthesia - veterinary
Animals
Dogs
Female
Hemoglobins - analysis
Male
Monitoring, Physiologic - veterinary
Oximetry - veterinary
Reproducibility of Results
Scientific
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Rondeau, Jenna
Kwong, Grace P S
description New technology allows noninvasive measurement of total hemoglobin (Hb) in humans through use of multiple wavelength co-oximetry. This monitor is now available to the veterinary market but no studies have been performed to validate its use in animals. This study investigated the use of co-oximetry to measure Hb in anesthetized dogs by comparing "gold standard" Hb measurements from a laboratory (LabHb) with those measured by the co-oximeter (SpHb). Bland-Altman analysis showed that the monitor had a bias of -3.01 (SpHb values were lower than LabHb values) and that 64.5% of measured SpHb values were greater than 20 g/L different from their associated LabHb values. Based on the results of this study, use of co-oximetry to measure Hb in anesthetized dogs is not accurate enough to direct treatment. Further studies are warranted in other animal species and under other clinical conditions.
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subjects Anesthesia - veterinary
Animals
Dogs
Female
Hemoglobins - analysis
Male
Monitoring, Physiologic - veterinary
Oximetry - veterinary
Reproducibility of Results
Scientific
title Validation of noninvasive hemoglobin measurements using co-oximetry in anesthetized dogs
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