Publication: Regional pulmonary oxygen saturations immediately after birth
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Date
2022-03-01
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Abstract
Background: Partial oxygen saturation (SpO2) increases within minutes during transition from the intrauterine to
extrauterine life. This study aims to determine the postnatal course of pulmonary regional oxygen saturation
(rSO2) measured by Near-Infrared Spectroscopy (NIRS).
Methods: We conducted an observational study at the delivery room in infants above 35 weeks of gestation who
did not need resuscitation and did not develop respiratory distress. Preductal pulse oximetry (Covidien NellcorTM) and right pulmonary apex oxygen saturation (raSO2) and basal oxygen saturation (rbSO2) (Covidien
INVOSTM) were measured, starting from the postnatal third minute of life, until the 15th minute. The correlations between SpO2 and pulmonary rSO2 were analyzed.
Results: Of the 110 infants included in the study, 87 were term and 23 were late preterms. The gestational age and
birth weight were 38.5 ± 1.36 weeks and 3285 ± 508 g, respectively. Median (5th–95th percentile) raSO2 and
rbSO2 were 79% (58–95%) and 78% (46–95%) at the third minute, respectively. The rSO2 values measured from
both sides increased and reached a steady-state around postnatal 9 min, similar to SpO2 values. The pulmonary
NIRS values were significantly higher for babies born by C-Section compared to babies born by vaginal delivery
(p < 0.05).
Conclusion: We found that rSO2 measurements increased within minutes in the postnatal period in late preterm
and term babies without respiratory distress and reached a plateau at the postnatal 9th minute. The normal
values obtained from this preliminary study may be used to predict the prognosis of cases with respiratory
distress.
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Tıp, Sağlık Bilimleri, Dahili Tıp Bilimleri, Çocuk Sağlığı ve Hastalıkları, Cerrahi Tıp Bilimleri, Kadın Hastalıkları ve Doğum, Medicine, Health Sciences, Internal Medicine Sciences, Child Health and Diseases, Surgery Medicine Sciences, Obstetrics and Gynecology, KADIN HASTALIKLARI & DOĞUM, Klinik Tıp, Klinik Tıp (MED), PEDİATRİ, OBSTETRICS & GYNECOLOGY, CLINICAL MEDICINE, Clinical Medicine (MED), PEDIATRICS, Pediatri, Doğum ve Jinekoloji, Pediatri, Perinatoloji ve Çocuk Sağlığı, Pediatrics, Pediatrics, Perinatology and Child Health, Neonate, Near-infrared spectroscopy, Lung, NEAR-INFRARED SPECTROSCOPY, REFERENCE RANGES, TERM INFANTS, TRANSITION, NEWBORNS, TRENDS
Citation
GÜLCAN KERSİN S., Yasa B., Cetinkaya M., ILGIN C., ÖZEK E., BİLGEN H. S., "Regional pulmonary oxygen saturations immediately after birth", EARLY HUMAN DEVELOPMENT, cilt.166, 2022