Findings

What do systematic reviews say?

23 questions · 23 findings · 4 reviews · Headline outcomes only

No studies found 2 · 8.7%GRADE not reported 0 · 0%Very low 11 · 47.8%Low 4 · 17.4%Moderate 4 · 17.4%High 2 · 8.7%

Length of hospital stay · adult patients 18 years and above undergoing standard general anaesthesia

1 finding from 1 review

Nitrous oxide‐based techniques versus nitrous oxide‐free techniques for general anaesthesia 2015 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 1103 participants
Moderate

Venous thromboembolism · adult patients 18 years and above undergoing standard general anaesthesia

The intervention showed no clear difference in venous thromboembolism (moderate certainty).

1 finding from 1 review

Nitrous oxide‐based techniques versus nitrous oxide‐free techniques for general anaesthesia 2015 · Cochrane Headline outcomes only
OR 0.73 [0.45, 1.2]
2 studies · 9004 participants
Moderate

Wound infection rate · adult patients 18 years and above undergoing standard general anaesthesia

The intervention showed no clear difference in wound infection rate (low certainty).

1 finding from 1 review

Nitrous oxide‐based techniques versus nitrous oxide‐free techniques for general anaesthesia 2015 · Cochrane Headline outcomes only
OR 1.22 [0.84, 1.78]
6 studies · 9789 participants
Low