Neonatal acid-base balance in spontaneous and instrumental vaginal deliveries

E. J. Livnat*, M. Fejgin, A. Scommegna, J. Bieniarz, L. Burd

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The acid-base balances of 63 neonates delivered either spontaneously or by the vacuum extractor or low forceps were compared. The outcome was similar in neonates delivered by vacuum extractor or forceps. However, significant differences were noted in the pH and base deficit of infants born by instrumental versus spontaneous delivery. These differences were no longer present when groups with similar duration in the second stage of labor were compared. We conclude that the use of instruments for outlet vaginal delivery carries no additional risk for the fetus.

Original languageEnglish
Pages (from-to)549-551
Number of pages3
JournalObstetrics and Gynecology
Issue number5
StatePublished - Nov 1978
Externally publishedYes


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