Cochrane · systematic review · CD007421

Hyaluronic acid in embryo transfer media for assisted reproductive technologies

Heymann, D, Vidal, L, Or, Y, et al. · Cochrane Database of Systematic Reviews · 2020 · Cochrane Library

Gynaecology and Fertility2 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
5
current version
GRADE rated
5
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 2 · 40%Moderate 3 · 60%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

High versus low or no hyaluronic acid for assisted reproductive technologies

Population: couples undergoing embryo transfer
5 questions
OutcomeEffectEvidenceStatus / GRADE
Live birth rate ‐ high vs low or no hyaluronic acid
High vs low or no hyaluronic acid
RR 1.21 [1.11, 1.31]10 studies · 4066 participantsModerate
Downgraded: risk of bias
Miscarriage rate
High vs low or no hyaluronic acid
RR 0.82 [0.67, 1]7 studies · 3091 participantsLow
Downgraded: imprecision, inconsistency
Clinical pregnancy rate ‐ high vs low or no hyaluronic acid
High vs low or no hyaluronic acid
RR 1.16 [1.09, 1.23]17 studies · 5247 participantsModerate
Downgraded: inconsistency
Multiple pregnancy rate
High vs low or no hyaluronic acid
RR 1.45 [1.24, 1.7]7 studies · 3337 participantsModerate
Downgraded: imprecision
Adverse event rate
High vs low or no hyaluronic acid
RR 0.86 [0.4, 1.84]3 studies · 1487 participantsLow
Downgraded: imprecision