Cochrane · systematic review · CD001450

Fetal and umbilical Doppler ultrasound in normal pregnancy

Alfirevic, Z, Stampalija, T, Medley, N · Cochrane Database of Systematic Reviews · 2015 · Cochrane Library

Pregnancy and ChildbirthAMSTAR 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
7
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 3 · 42.9%Moderate 2 · 28.6%High 2 · 28.6%

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

All routine Doppler ultrasound versus no Doppler ultrasound

Population: Pregnant women in unselected or low‐risk populations.
7 questions
OutcomeEffectEvidenceStatus / GRADE
Perinatal death (stillbirth and neonatal death including anomalies)
All routine Doppler ultrasound vs no Doppler ultrasound
RR 0.8 [0.35, 1.83]4 studies · 11183 participantsLow
Downgraded: imprecision, inconsistency
Serious neonatal morbidity
All routine Doppler ultrasound vs no Doppler ultrasound
RR 0.99 [0.06, 15.75]1 study · 2016 participantsLow
Downgraded: imprecision
Stillbirth ‐ Fetal/umbilical vessels only
All routine Doppler ultrasound vs no Doppler ultrasound
RR 0.34 [0.12, 0.95]2 studies · 6877 participantsModerate
Stillbirth ‐ Fetal/umbilical vessels + uterine artery
All routine Doppler ultrasound vs no Doppler ultrasound
RR 1.41 [0.44, 4.46]2 studies · 5276 participantsLow
Downgraded: imprecision, inconsistency
Caesarean section (elective and emergency)
All routine Doppler ultrasound vs no Doppler ultrasound
RR 0.98 [0.85, 1.13]2 studies · 6373 participantsHigh
Preterm birth (before 37 weeks)
All routine Doppler ultrasound vs no Doppler ultrasound
RR 1.02 [0.86, 1.21]4 studies · 12162 participantsHigh
Neonatal admission to special care baby unit/neonatal intensive care unit
All routine Doppler ultrasound vs no Doppler ultrasound
RR 0.99 [0.84, 1.17]3 studies · 7477 participantsModerate