Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

864 questions · 895 findings · 140 reviews · Headline outcomes only

No studies found 202 · 22.6%GRADE not reported 53 · 5.9%Very low 227 · 25.4%Low 254 · 28.4%Moderate 131 · 14.6%High 28 · 3.1%

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