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Related Experiment Videos

Erythroblastosis in birth asphyxia.

B Thilaganathan1, K H Nicolaides

  • 1The Harris Birthright Research Centre for Fetal Medicine, King's College School of Medicine, London, UK.

Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology
|January 1, 1992
PubMed
Summary

Umbilical cord blood erythroblast counts may better indicate fetal hypoxia than pH levels. This study compared asphyxiated and non-asphyxiated neonates, finding higher erythroblast counts in those experiencing birth asphyxia.

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Area of Science:

  • Neonatal Medicine
  • Perinatal Physiology
  • Biochemistry

Background:

  • Birth asphyxia is a critical condition in neonates.
  • Assessing fetal hypoxia accurately is crucial for timely intervention.
  • Umbilical venous pH and erythroblast counts are potential biomarkers.

Purpose of the Study:

  • To compare the utility of umbilical venous pH and erythroblast count in detecting fetal hypoxia.
  • To investigate the influence of delivery mode on these biomarkers.

Main Methods:

  • Measurement of umbilical venous blood pH and erythroblast count in 27 term neonates.
  • Comparison between 7 asphyxiated neonates and 20 non-asphyxiated controls.
  • Analysis considering vaginal and Cesarean section delivery methods.

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Main Results:

  • Asphyxiated neonates showed significantly lower umbilical venous pH compared to Cesarean section controls, but not vaginal delivery controls.
  • Erythroblast count was significantly higher in asphyxiated neonates regardless of delivery mode.
  • Cord blood erythroblast count demonstrated a more consistent elevation in hypoxic infants.

Conclusions:

  • Umbilical venous pH is influenced by delivery mode, potentially confounding hypoxia assessment.
  • Cord blood erythroblast count appears to be a more reliable indicator of fetal tissue hypoxia than umbilical venous pH.
  • Erythroblast count may offer a superior biomarker for identifying hypoxic events during birth.