Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,773 questions · 1,817 findings · 212 reviews · Headline outcomes only

No studies found 383 · 21.1%GRADE not reported 192 · 10.6%Very low 472 · 26%Low 444 · 24.4%Moderate 228 · 12.5%High 98 · 5.4%

Sedation vs placebo

Nausea · women undergoing regional anaesthesia for caesarean section

Sedatives probably leads to lower nausea ‐ intraoperative compared with placebo (moderate certainty).

2 findings from 1 review

Acupuncture or acupressure vs placebo

Nausea · women undergoing regional anaesthesia for caesarean section

It is very uncertain whether acupressure/acupuncture changes nausea ‐ intraoperative compared with placebo (very low certainty).

2 findings from 1 review

Dopamine antagonists vs placebo

Nausea · women undergoing regional anaesthesia for caesarean section

It is very uncertain whether dopamine antagonists changes nausea ‐ intraoperative compared with placebo (very low certainty).

2 findings from 1 review

Analysis 7 ‐ Collagen membrane with polyethylene glycol and glycerol vs Ringer's lactate

Clinical pregnancy rate · patients with adhesion prevention after gynaecological surgery

It is very uncertain whether analysis 7 ‐ Collagen membrane with polyethylene glycol and glycerol changes clinical pregnancy rate compared with ringer's lactate (very low certainty).

1 finding from 1 review