Document Detail

Fetal oxygen saturation during maternal bearing down efforts in the second stage of labor.
MedLine Citation:
PMID:  9514136     Owner:  NLM     Status:  MEDLINE    
Fetal oxygen saturation (FSpO2) was monitored with the Nellcor Puritan Bennett N400/FS14 system during 16 labors to establish whether FSpO2 was influenced by maternal bearing down efforts in the second stage of labor. Fetal SpO2 is reported for 16 fetuses where neonatal outcome was normal. One hour of continuous data was recorded: 30 min prior to the onset of maternal bearing down efforts and the first 30 min of pushing. The hour was divided into six epochs of 10-min duration. Differences between mean FSpO2 for the two 30 min of monitoring and for each epoch were sought using repeated measures analysis of variance (ANOVA). The mean FSpO2 for the total 30 min prior to the onset of pushing was 49% (95% confidence intervals 46.5-50.6%), compared to a mean of 46% (95% confidence intervals 43.6-48.7%) during the first 30 min of pushing [F (1, 2.25), p = 0.14]. There was no significant decline in mean FSpO2 for each epoch. Apgar scores at 5 min were all > 7 and umbilical arterial pH values were > or = 7.20 (n = 12). We concluded that mean FSpO2 recorded prior to the onset of maternal bearing down efforts was not significantly different to mean FSpO2 during pushing, with normal neonatal outcome.
C E East; K R Dunster; P B Colditz
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of perinatology     Volume:  15     ISSN:  0735-1631     ISO Abbreviation:  Am J Perinatol     Publication Date:  1998 Feb 
Date Detail:
Created Date:  1998-05-07     Completed Date:  1998-05-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8405212     Medline TA:  Am J Perinatol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  121-4     Citation Subset:  IM    
Perinatal Research Centre, Royal Women's Hospital and District Health Service, Brisbane, Australia.
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MeSH Terms
Fetal Blood / chemistry*
Fetal Monitoring
Fetus / physiology*
Labor Stage, Second / blood
Labor, Obstetric / blood*
Oxygen / blood*
Reg. No./Substance:

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