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Comparison of INVOS 5100C and Nonin SenSmart X-100 oximeter performance in preterm infants with spontaneous apnea

Comparison of INVOS 5100C and Nonin SenSmart X-100 oximeter performance in preterm infants with... BackgroundTissue oximeters are not interchangeable. Two instruments with sensors dedicated to preterm infants—INVOS 5100C and Nonin SenSmart X-100—have not yet been compared.MethodsBy measuring cerebral oxygenation in ten preterm infants with spontaneous apneic episodes defined by pulse oximeter readings (SpO2) below 80%, as well as tissue oxygenation during vascular occlusion on the forearm of ten adults, simultaneously we compared performance in the hypoxic range.ResultsWe found the mean conversion equations to be StO2,SenSmart X-100 = 0.34 × StO2,INVOS 5100C + 44.8% during apnea in infants and StO2,SenSmart X-100 = 0.59 × StO2,INVOS 5100C + 34.4% during vascular occlusion. The individual regressions displayed large and statistically significant variations in both infants and adults. In three infants the INVOS sensor showed very little reaction to decreases in SpO2.ConclusionsThese findings confirm that different NIRS devices give very different estimates when the oxygenation is low. The large variation when compared to SpO2 suggest that the sensor placement is very important in preterm infants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pediatric Research Springer Journals

Comparison of INVOS 5100C and Nonin SenSmart X-100 oximeter performance in preterm infants with spontaneous apnea

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References (32)

Publisher
Springer Journals
Copyright
Copyright © International Pediatric Research Foundation, Inc 2020
ISSN
0031-3998
eISSN
1530-0447
DOI
10.1038/s41390-020-0752-6
Publisher site
See Article on Publisher Site

Abstract

BackgroundTissue oximeters are not interchangeable. Two instruments with sensors dedicated to preterm infants—INVOS 5100C and Nonin SenSmart X-100—have not yet been compared.MethodsBy measuring cerebral oxygenation in ten preterm infants with spontaneous apneic episodes defined by pulse oximeter readings (SpO2) below 80%, as well as tissue oxygenation during vascular occlusion on the forearm of ten adults, simultaneously we compared performance in the hypoxic range.ResultsWe found the mean conversion equations to be StO2,SenSmart X-100 = 0.34 × StO2,INVOS 5100C + 44.8% during apnea in infants and StO2,SenSmart X-100 = 0.59 × StO2,INVOS 5100C + 34.4% during vascular occlusion. The individual regressions displayed large and statistically significant variations in both infants and adults. In three infants the INVOS sensor showed very little reaction to decreases in SpO2.ConclusionsThese findings confirm that different NIRS devices give very different estimates when the oxygenation is low. The large variation when compared to SpO2 suggest that the sensor placement is very important in preterm infants.

Journal

Pediatric ResearchSpringer Journals

Published: Jun 14, 2020

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