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Fetal Haemoglobin and Cerebral and Peripheral Oxygenation. — HbFIN  

Preterm Birth Clinical Trial

Official title:
Influence of Fetal Haemoglobin on Cerebral and Peripheral Oxygenation in Term and Preterm Neonates During the First Two Weeks After Birth Measured by Near Infrared Spectroscopy- a Prospective Observational Pilot Study

Clinical Trial Summary

The aim of this study is to investigate the relationship between cerebral and peripheral oxygenation and oxygen extraction, as measured by NIRS (near-infrared spectroscopy ), and the FHbF (fraction of fetal hemoglobin) and absolute HbF (fetal hemoglobin) concentration in postnatal conditions in term and preterm neonates.

Clinical Trial Description

During gestation the main fetal oxygen carrier is fetal hemoglobin (HbF). HbF exhibits a significantly higher affinity for oxygen when compared to adult hemoglobin (HbA), which makes it more suitable for oxygen extraction at the lower partial oxygen pressures in utero. Although the regulation of HbF expression is determined developmentally, recent studies report a respectable variation in the fraction of HbF in neonates. Such data suggest that the differences in HbF expression could affect end-tissue oxygenation in neonates. The methodology for measuring oxygen saturation and extraction in cerebral and peripheral tissues of neonates using the near-infrared spectroscopy (NIRS) has been well practiced in our study group. However, the method has not yet been used to investigate whether the fraction of fetal hemoglobin (FHbF) plays a significant role in cerebral and peripheral oxygenation in neonates. The aim of this study is to investigate the relationship between cerebral and peripheral oxygenation and oxygen extraction, as measured by NIRS, and the FHbF and absolute HbF concentration in postnatal conditions in term and preterm neonates. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04802629
Study type Observational [Patient Registry]
Source Medical University of Graz
Contact Gerhard Pichler, Prof
Phone +43 316 385 80520
Email gerhard.pichler@medunigraz.at
Status Recruiting
Phase
Start date June 8, 2020
Completion date May 1, 2024
View Details
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