Changes in arterial oxygen saturation immediately after birth in the human neonate

Elective caesarean delivery adversely affects preductal oxygen saturation during birth transition

“…Therefore, the course of the SpO 2 but not of HR values of the present study are in accordance with the literature 2 7 8 20. However, to the best of our knowledge, there are no studies evaluating differences in vaginal or CD neonatal SpO 2 , HR and umbilical arterial blood pH values together.…”

“…Three very similar results were reported by Kamlin et al 15 in infants >31 weeks’ gestation born by elective caesarean section who took on average 2 min longer to reach an SpO 2 90% than infants born by spontaneous VD. Harris et al 8 found, using an early generation oximeter, that SpO 2 was much lower in term caesarean-section deliveries. Mariani et al 18 found a similar difference in a cohort of late preterm and at term infants >35 weeks delivered by prelabour CD in comparison with babies born by VD.…”

“…At present, this is the only available SpO 2 nomogram and represents the best estimate of the most appropriate SpO 2 targets for term, but especially for preterm infants during the first minutes of life 7. However, other studies performed in term newborn infants have shown that some normal newborn infants need even more time especially if they are born by caesarean section 3 8. This assumption does not differentiate between neonates born by elective, prelabour and emergency caesarean delivery (CD), nor between term, early-term, late-preterm and preterm or intrauterine growth restriction CD neonates.…”

Arterial oxygen saturation in healthy newborns delivered at term in Cerro de Pasco (4340 m) and Lima (150 m)

“…Harris et al [2] found at sea level a gradual rise in mean SpO 2 value from 61% to 5 min after an uncomplicated vaginal birth.…”

Oxygen Saturation Reference Value by Percutaneous Pulse Oximetry in Asymptomatic Newborn Babies in Nigeria: A Cross-Sectional Study

“…This could possibly be because these infants may have some compromise due to their GA at birth. More so, these neonates after 42 weeks of gestation mostly likely will have assisted delivery or Caesarean section, and some studies show that neonates delivered by Cesarean section have lower SpO 2 values than those delivered vaginally [26][27][28], even though this study did not examine the impact of different modes of delivery on oxygen saturation. This may be secondary to the delayed clearance of lung fluid during operative delivery without an adequate period of labour.…”