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Haemodynamic changes in the brain after vaginal delivery and caesarean section in healthy term infants
Author(s) -
Dani C.,
Martelli E.,
Bertini G.,
Pezzati M.,
Rubaltelli F.F.
Publication year - 2002
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.2002.01169.x
Subject(s) - vaginal delivery , medicine , caesarean section , oxygen saturation , hemodynamics , gestational age , anesthesia , blood volume , obstetrics , pregnancy , gestation , oxygen , chemistry , biology , genetics , organic chemistry
Objective To investigate whether the mode of delivery may affect neonatal cerebral haemodynamics during the first hour of life. Design Prospective study. Sample Healthy infants with gestational age ≥37 weeks and birthweight appropriate for gestational age, born after uncomplicated pregnancy by vaginal delivery or elective caesarean section, two to five hours after the delivery. Methods Near infra‐red spectroscopy was used to measure changes of oxygenated haemoglobin, deoxygenated haemoglobin, oxidized‐reduced cytochrome aa3, and mean cerebral oxygen saturation (mixed cerebral oxygen saturation = oxygenated haemoglobin/total haemoglobin). Changes in cerebral blood volume were calculated. Results Near infra‐red spectroscopy data did not show significant differences between infants born by vaginal delivery or by caesarean section. There was a significant decrease of oxygenated haemoglobin and change of cerebral blood volume values at 120 and 180 minutes in both the groups, while deoxygenated haemoglobin and oxidized‐reduced cytochrome aa3 were unchanged. Conclusions A decrease of cerebral blood volume occurs after birth and this occurs both in infants born by vaginal delivery and by caesarean section.