Measurement of cerebral oxygenation in neonates after vaginal delivery and cesarean section using full-spectrum near infrared spectroscopy.
To investigate whether or not the mode of delivery produces differences in cerebral oxygenation, cerebral hemoglobin oxygen saturation was measured using full-spectrum near infrared spectroscopy in 26 healthy term newborn infants immediately after birth. Infants in group 1 (n=20) were delivered vaginally, and those in group 2 (n=6) by elective cesarean section. Arterial oxygen saturation in the right hand was also measured simultaneously using a pulse oximeter. Changes in arterial oxygen saturation showed no significant difference between the two groups. The mean+/-S.D. of cerebral hemoglobin oxygen saturation in group 1 increased rapidly after birth, from 29+/-17% at 2 min to 68+/-6% at 8.5 min, followed by an almost constant value (66+/-7% at 15 min). In comparison, cerebral hemoglobin oxygen saturation in group 2 also increased rapidly until 8.5 min, but after this time decreased significantly to 57+/-5% at 15 min after birth. This indicates that the mode of delivery has a marked influence on cerebral oxygenation immediately after birth.
Isobe
Kenichi
K
Department of Pediatrics Kagawa Medical University, 1750-1 Mikicho, Kitagun, Kagawa 761-0793, Japan. isobe@kms.ac.jp
Kusaka
Takashi
T
Fujikawa
Yuka
Y
Okubo
Kensuke
K
Nagano
Keiko
K
Yasuda
Saneyuki
S
Kondo
Masatoshi
M
Itoh
Susumu
S
Hirao
Konomu
K
Onishi
Shoju
S
D002585:Cesarean Section; D036861:Delivery, Obstetric; D006801:Humans; D007231:Infant, Newborn / Q000378:metabolism*; D010100:Oxygen / Q000032:analysis*; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013687:Telencephalon / Q000098:blood supply / Q000378:metabolism*; D013997:Time Factors
D010100:Oxygen