Cerebral oxygenation reflects fetal development in preterm monochorionic and dichorionic twins

Area of Science:

• Neonatal Medicine
• Perinatal Research
• Medical Monitoring

Background:

• Cerebral oxygenation (crSO2) monitoring is vital for high-risk infants.
• Monochorionic twins face unique fetal pathologies impacting cerebral hemodynamics.
• Limited data exists on crSO2 in these twins post-birth.

Purpose of the Study:

• To evaluate cerebral oxygenation (crSO2) changes in preterm monochorionic and dichorionic twins.
• To assess crSO2 during the initial 72 hours of life.
• To correlate crSO2 with specific fetal pathologies.

Main Methods:

• Near-infrared spectroscopy (NIRS) measured crSO2 in 62 preterm infants (<32 weeks gestation).
• Infants were categorized into four groups: donor, recipient (monochorionic twins with TTTS), FGR, and controls.
• Statistical analysis used mixed-effects models to compare crSO2 across subgroups.

Main Results:

• Significant differences in birth weight and crSO2 were observed among the four subgroups (p < 0.001).
• Recipient twins showed the lowest mean crSO2 (76 ± 0.3%), while FGR (86 ± 0.3%) and donor twins (83 ± 0.4%) had the highest.
• No significant differences in neonatal mortality or morbidity were found between subgroups.

Conclusions:

• Postnatal cerebral oxygenation (crSO2) values correlate significantly with underlying fetal pathology in preterm twins.
• This finding is crucial for understanding hemodynamic variations in monochorionic and dichorionic twins.
• NIRS monitoring can help identify at-risk preterm twins requiring closer observation.