Evaluation of non-invasive hemoglobin measurement in pediatric intensive care units
- Authors
- Publication Date
- Oct 05, 2023
- Source
- HAL-Descartes
- Keywords
- Language
- English
- License
- Unknown
- External links
Abstract
Introduction: hemoglobin monitoring in pediatric intensive care units is a real challenge. The use of a non-invasive measurement method would make it possible to respond to the specific constraints of a pediatric population, such as sampling difficulties or blood spoliation. A pulse co-oximetry measurement technique exists, but its use in pediatric intensive care is controversial. The aim of our study is to evaluate the correlation and trends between hemoglobin values estimated by non-invasive methods (SpHb) and those measured by the laboratory (LabHb).Material and methods: we carried out a retrospective observational study on a cohort of 52 patients aged 6 months to 18 years at high risk of bleeding, hospitalized in pediatric intensive care.Results: 109 pairs of SpHb/LabHb values were studied. Mean LabHb and SpHb values were 10 g/dL and 11.6 g/dL respectively. The results show a good correlation with a Pearson coefficient r = 0.77 (0.7-0.8) (p<0.001). Bland-Altman analysis shows a mean difference of 1.6g/dL ± 2.64g/dL, with only 60% of SpHb values having a difference of less than 2g/dL from LabHb. Trend analysis was non-significant (p=0.13), with a mean difference of 0.3g/dL ± 1.3g/dL 95% CI (-0.1-0.7).Conclusion: spHb correlates well with LabHb. However, this monitoring device lacks precision and its usefulness in continuous monitoring has not been demonstrated. Further studies are needed to define the target population and the appropriate clinical context.
