Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,736 questions · 15,265 findings · 1,163 reviews · Headline outcomes only

No studies found 3,871 · 25.4%GRADE not reported 810 · 5.3%Very low 4,242 · 27.8%Low 3,879 · 25.4%Moderate 1,999 · 13.1%High 464 · 3%

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5‐HT3 antagonists vs placebo

Nausea · women undergoing regional anaesthesia for caesarean section

5‐HT3 antagonists may leads to lower nausea ‐ intraoperative compared with placebo (low certainty).

2 findings from 1 review

Corticosteroids vs placebo

Nausea · women undergoing regional anaesthesia for caesarean section

Corticosteroids probably leads to lower nausea ‐ postoperative compared with placebo (moderate certainty).

2 findings from 1 review

Antihistamines vs placebo

Nausea · preventing nausea and vomiting

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

2 findings from 1 review

Anticholinergic medication vs placebo

Nausea · women undergoing regional anaesthesia for caesarean section

Anticholinergics may leads to lower nausea ‐ intraoperative compared with placebo (low certainty).

2 findings from 1 review

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

Opioid antagonists vs placebo

Nausea · preventing nausea and vomiting
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