title: Oxygen saturation of healthy term neonates during the first 30 minutes of life.
abstract: BACKGROUND
  The purpose of this study was to document the oxygen saturation (SpO(2) ), general physical signs and laboratory characteristics during the first 30 min of life.
  
  
  METHODS
  Forty healthy singleton full-term neonates delivered vaginally (n = 33) or by cesarean section (n = 7) were included in this prospective observational study. After delivery, the SpO(2)  levels of the upper (right hand; 'preductal') and lower (dorsum of the right foot; 'postductal') extremities of the neonates lying on the servo-controlled radiant heater in the delivery room were measured simultaneously with oximeter probes (Oxiprobe BM-270) placed at 1, 5, 10, 15, 20, 25, and 30 min. The correlation between pre- and postductal SpO(2)  level and different variables (vital signs, capillary refill time recorded at 1 and 15 min, cord pH and hemoglobin values, and Apgar scores at 1 and 5 min) was examined.
  
  
  RESULTS
  The 1 min pre- and postductal SpO(2)  were 82.3 ± 7.34% and 79.08 ± 8.16% (P > 0.05), respectively. The preductal values at 5, 10, and 15 min were statistically higher than the postductal values (89.73 ± 6.01%, 93.43 ± 4.06%, and 94.53 ± 3.19% vs 85.53 ± 6.92%, 89.9 ± 4.91%, 92.83 ± 3.92%, respectively). SpO(2)  was the same regardless of the mode of delivery. No correlations were found between pre- and postductal SpO(2)  and other variables.
  
  
  CONCLUSIONS
  Oxygen saturation was not affected by mode of delivery, was independent of Apgar score, cord hemoglobin, cord pH, vital signs, and capillary refill time in the first few minutes of life, and did not reach 90% in the first 5 min of life in healthy full-term neonates.
authors.affiliation: Department of Paediatrics, Bakırkoy Dr Sadi Konuk Training and Research Hospital, Istanbul, Turkey.
authors.forename: Ayşegül
authors.initials: A
authors.lastname: Beşkardeş
authors.forename: Ozgül
authors.initials: O
authors.lastname: Salihoğlu
authors.forename: Emrah
authors.initials: E
authors.lastname: Can
authors.forename: Deniz
authors.initials: D
authors.lastname: Atalay
authors.forename: Bedir
authors.initials: B
authors.lastname: Akyol
authors.forename: Sami
authors.initials: S
authors.lastname: Hatipoğlu
mesh_terms: D001034:Apgar Score; D015415:Biomarkers / Q000097:blood; D002585:Cesarean Section; D005260:Female; D006801:Humans; D007231:Infant, Newborn / Q000097:blood*; D008297:Male; D010092:Oximetry; D010100:Oxygen / Q000097:blood*; D011446:Prospective Studies; D047929:Term Birth
chemical_list: D015415:Biomarkers; D010100:Oxygen