Monitoring Parameters During the Immediate Postnatal Transition Period and Inflammatory Markers in the First Two Days...

Area of Science:

• Neonatal physiology and adaptation
• Pediatric infectious diseases and inflammation

Background:

• The transition from fetal to neonatal life involves significant cardiorespiratory adjustments.
• Early-onset infections or inflammation in neonates can potentially impact cardiovascular adaptation.

Purpose of the Study:

• To investigate the association between early infection/inflammation markers and neonatal vital parameters within the first 15 minutes post-birth.
• To evaluate how inflammatory markers correlate with cerebral oxygen saturation (crSO2), arterial oxygen saturation (SpO2), and heart rate (HR) in neonates.

Main Methods:

• Post-hoc analysis of a prospective observational study including preterm and term neonates.
• Continuous monitoring of crSO2, SpO2, and HR during the first 15 minutes after birth.
• Measurement of inflammatory markers (CRP, leukocytes, IT ratio) within 48 hours post-birth and correlation with vital parameters.

Main Results:

• Elevated CRP and IT ratio within 24 hours post-birth showed negative correlations with crSO2 and SpO2 at 5, 10, and 15 minutes.
• The IT ratio measured between 24-48 hours also correlated negatively with crSO2 at 15 minutes.
• Leukocyte count within 24 hours correlated negatively with crSO2 at 5 minutes; no significant HR correlations were found.

Conclusions:

• Early inflammatory markers, specifically CRP and IT ratio, are associated with cerebral and systemic oxygenation during the immediate neonatal transition.
• Findings suggest a potential link between early inflammatory activation and oxygenation dynamics in neonates.
• The observational design and modest correlation strength necessitate cautious interpretation, precluding causal conclusions.