evidence/gaps
Cochrane · systematic review · CD006161

Supplemental oxygen for caesarean section during regional anaesthesia

Chatmongkolchart, S, Prathep, S · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library

Anaesthesia2 versionsAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
7
current version
GRADE rated
6
No studies
1
Included studies
NR
No studies 1 · 14.3%Ungraded 0 · 0%Very low 4 · 57.1%Low 2 · 28.6%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Show all 2 versions

Comparison

Population: low‐risk term pregnant women undergoing elective caesarean section under regional anaesthesia
7 questions
OutcomeEffectEvidenceStatus / GRADE
Apgar scores at 1 minute
no estimate extracted6 studies · 519 participantsLow
Downgraded: risk of bias, inconsistency
Apgar scores at 5 minutes
no estimate extracted6 studies · 519 participantsLow
Downgraded: risk of bias, inconsistency
Proportion of maternal participants with desaturation1
no estimate extractedNRNo studies
Mean maternal arterial oxygen tension (mm Hg) (PaO2)
no estimate extracted6 studies · 241 participantsVery low
Downgraded: risk of bias, inconsistency
Mean maternal oxygen saturation (%)
no estimate extracted3 studies · 209 participantsVery low
Downgraded: risk of bias, inconsistency
Mean oxygen tension (mm Hg) in umbilical artery (UaPO2)
no estimate extracted8 studies · 504 participantsVery low
Downgraded: risk of bias, inconsistency
Mean oxygen tension (mm Hg) in umbilical vein (UvPO2)
no estimate extracted10 studies · 683 participantsVery low
Downgraded: risk of bias, inconsistency