Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

93 questions · 94 findings · 11 reviews · Headline outcomes only

No studies found 32 · 34%GRADE not reported 8 · 8.5%Very low 36 · 38.3%Low 13 · 13.8%Moderate 3 · 3.2%High 2 · 2.1%

Lidocaine IV vs placebo or no treatment

Nausea · adults undergoing surgery with general anaesthesia

It is very uncertain whether intravenous (IV) lidocaine changes postoperative nausea, 'overall' (0 to 24 h, to 48 h, to 72 h) compared with placebo or no treatment (very low certainty).

1 finding from 1 review