PMID: 3104107Mar 1, 1987

Acid-base evaluation of umbilical cord blood: relation to delivery mode and Apgar scores

European Journal of Obstetrics, Gynecology, and Reproductive Biology
C Nickelsen, T Weber

Abstract

Acid-base status of umbilical artery and vein blood was measured immediately after delivery in 300 cases. A slight acidosis of mixed respiratory/metabolic type was found in newborns delivered following a second stage of 10-30 min duration. After a second stage of more than 30 min the metabolic contribution to the acidosis was predominating. With Apgar scores lower than 10 the pH was found to decrease and carbon dioxide tension to increase. Induction or augmentation of labor by oxytocin did not influence the acid-base status of umbilical cord blood. Delivery by vacuum extraction or low forceps resulted in lower pH and higher carbon dioxide tension in umbilical cord blood, but the changes were associated with the indication for instrumental delivery and not with mode of delivery. A large arterio-venous difference between the acid-base parameters was usually connected to vigorous newborns and a small difference to depressed infants. The carbon dioxide tension was usually increased in newborns with decreased pH, and a close correlation between these parameter was found. No case of acidosis (pH below 7.15) was found in this population at carbon dioxide tensions below 7.2 kPa; at higher Pco2 values only 25% of the newborns were acido...Continue Reading

References

Sep 1, 1979·British Journal of Obstetrics and Gynaecology·T Weber, S Hahn-Pedersen
Jan 1, 1986·European Journal of Obstetrics, Gynecology, and Reproductive Biology·C Nickelsen, T Weber
Aug 1, 1986·European Journal of Obstetrics, Gynecology, and Reproductive Biology·C NickelsenT Weber
Feb 27, 1982·Lancet·G S SykesA C Turnbull
Feb 1, 1983·European Journal of Obstetrics, Gynecology, and Reproductive Biology·T K EskesP C Houx
Nov 1, 1984·British Journal of Obstetrics and Gynaecology·S G Thomsen, T Weber
Jul 1, 1984·American Journal of Perinatology·J S SuidanB K Young
Aug 1, 1965·The Journal of Obstetrics and Gynaecology of the British Commonwealth·R W BEARD, E D MORRIS
Jan 1, 1984·Journal of Perinatal Medicine·S Schmidt

Citations

Jan 30, 1991·European Journal of Obstetrics, Gynecology, and Reproductive Biology·A L HoffmannB Weile
Jul 1, 1997·Obstetrics and Gynecology·A HerbstI Ingemarsson
Apr 2, 1988·Lancet·P C BoylanJ Stronge
Jul 15, 2009·Journal de gynécologie, obstétrique et biologie de la reproduction·J-P SchaalP Hoffman
Jan 1, 1997·Journal of Perinatal Medicine·F P VandenbusscheM J Keirse
Sep 1, 1988·American Journal of Obstetrics and Gynecology·J A ThorpE P Heslin
Jun 1, 1990·American Journal of Obstetrics and Gynecology·P A RobertsonR L Zhao
Jan 8, 2009·Taiwanese Journal of Obstetrics & Gynecology·Chi-Feng SuLong-Yau Lin
Sep 23, 2008·Journal de gynécologie, obstétrique et biologie de la reproduction·J-P SchaalF Pierre
Jan 13, 2006·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Claudio G SosaJusto G Alonso
Feb 18, 1998·American Journal of Obstetrics and Gynecology·Y BelaiF J Walther
Jan 1, 1991·Journal of Perinatal Medicine·K G Rosén, K W Murphy
Mar 8, 2018·Acta Obstetricia Et Gynecologica Scandinavica·Liv KnutzenLawrence Impey
Mar 1, 1988·British Journal of Obstetrics and Gynaecology·C Nickelsen, T Weber
Jan 1, 1987·Journal of Perinatal Medicine·T Weber, C Nickelsen

Related Concepts

Anion Gap
Apgar Score
Carbon Dioxide
Postcesarean Section
Umbilical Cord Blood
Hydrogen-Ion Concentration
Labor Stage, Second
Obstetrical Forceps
Dioxygen
Structure of Umbilical Artery

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