PMID: 15915Jan 1, 1976

Response of fetal acid--base balance to duration of second stage of labour

International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics
V M RoemerT J Horvath

Abstract

Data from 4081 vaginal deliveries (no caesarean sections) were analyzed retrospectively (IBM 730/158) with regard to duration of second and "final stage" of labour and fetal outcome (acid-base balance and apgar scores). The average duration of the two periods amounted to 22.8+/-29.6 and 9.9+/-7.8 min. Mean pH (UA) was 7.268+/-0.084 and the acidotic risk (pH less than 7.20, pH less than 7.10) 13.4 and 1.6% respectively. The distribution of the Apgar-scores after 1 min was assessed: 0-3: 1.7%, 4-6: 5.4%, 7-10: 92.9%. The dependance of the time variables from parity was studied. Two samples (N1=1755, N2=1098) of uncomplicated term pregnancies were chosen according to 7 clinical selection criteria differing only in the presence of cord entanglements at birth. The association between the two time variables and parameters of the fetal acid-base balance in cord blood was evaluated using rank correlation- and polynomial regression analysis. Highly significant correlations (tau) were found between the variable time and actual pH in blood of the umbilical artery and vein as well as pCO2, BEECF and HbO2 in the umbilical vein. The association however is not very close and thus clinically not of great importance. The deltapH (UA & UV) pro 6...Continue Reading

References

Jan 1, 1975·Journal of Perinatal Medicine·G D RoversiM Spennacchio
Jan 1, 1975·European Journal of Obstetrics, Gynecology, and Reproductive Biology·T K EskesH W Jongsma
Mar 12, 1974·Archiv für Gynäkologie·V M RoemerM Hinselmann
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Jul 1, 1959·American Journal of Obstetrics and Gynecology·A R FLEMINGW H PEARSE
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Citations

Feb 1, 1990·International Journal of Gynaecology and Obstetrics : the Official Organ of the International Federation of Gynaecology and Obstetrics·H SchneiderR Huch
Feb 24, 2001·Acta Obstetricia Et Gynecologica Scandinavica·E Halmesmäki
May 1, 2007·Journal of Midwifery & Women's Health·Joyce Roberts, Lisa Hanson
Feb 1, 1991·The Australian & New Zealand Journal of Obstetrics & Gynaecology·R J DerhamC Crowther
Jun 1, 1995·British Journal of Obstetrics and Gynaecology·C J AldrichE O Reynolds
Apr 23, 2002·Acta Obstetricia Et Gynecologica Scandinavica·Wolfgang JanniFranz Kainer
Sep 1, 1979·British Journal of Obstetrics and Gynaecology·T Weber, S Hahn-Pedersen
Jan 1, 1991·Journal of Perinatal Medicine·K G Rosén, K W Murphy
May 1, 1987·British Journal of Obstetrics and Gynaecology·M KatzJ Gross
Apr 3, 2001·BJOG : an International Journal of Obstetrics and Gynaecology·L NordströmS Arulkumaran
Sep 30, 1999·Journal of Perinatal Medicine·F P VandenbusscheM J Keirse
Nov 11, 2016·Journal of Medical Ultrasonics·Miyuki MuramotoMasaaki Nagatsuka
Jun 24, 2004·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·S Suzuki, S Okudaira

Related Concepts

Anion Gap
Carbon Dioxide
Umbilical Cord Blood
Fetal Structures
Hydrogen-Ion Concentration
Labor (Childbirth)
Labor Stage, Second
Third Stage Labor
Dioxygen
Structure of Umbilical Artery

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