Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz

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Pritišanac, E; Urlesberger, B; Schwaberger, B; Pichler, G.
Fetal Hemoglobin and Tissue Oxygenation Measured With Near-Infrared Spectroscopy-A Systematic Qualitative Review.
Front Pediatr. 2021; 9:710465 Doi: 10.3389/fped.2021.710465 [OPEN ACCESS]
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Führende Autor*innen der Med Uni Graz
Pichler Gerhard
Suppan Ena
Co-Autor*innen der Med Uni Graz
Schwaberger Bernhard Christian
Urlesberger Berndt

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Fetal hemoglobin (HbF) is a principal oxygen carrier in the blood of preterm and term neonates. Compared to adult hemoglobin, it has a significantly higher affinity for oxygen and its oxyhemoglobin dissociation curve (ODC) is left-shifted accordingly. Tissue oxygenation measured with near-infrared spectroscopy (NIRS) during neonatal intensive care is directly affected by hemoglobin concentration. We performed a systematic qualitative review regarding the impact of HbF on tissue oxygenation monitoring by NIRS. The PubMed/Medline, EMBASE, Cochrane library and CINAHL databases were searched from inception to May 2021 for studies relating to HbF and NIRS in preterm and term neonates in the first days and weeks after birth. Out of 1,429 eligible records, four observational studies were included. Three studies found no effect of HbF on cerebral tissue oxygenation. One peripheral NIRS study found a positive correlation between HbF and peripheral fractional oxygen extraction (FOE). Currently available limited data suggest that FHbF could affect peripheral muscle FOE, but seems not to affect cerebral oxygenation in preterm neonates. More studies are needed to draw a final conclusion on this matter, especially concerning the oxygenation changes driven by adult RBC transfusions.

Find related publications in this database (Keywords)
fetal hemoglobin
near infrared spectroscopy
cerebral tissue oxygenation
fractional oxygen extraction
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