Findings

What do systematic reviews say?

27 questions · 27 findings · 2 reviews

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 8 · 29.6%Low 9 · 33.3%Moderate 10 · 37%High 0 · 0%

Failed intubation · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy probably leads to lower failed intubation compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.41 [0.26, 0.65]
41 studies · 4615 participants
Moderate

Hypoxaemia · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy probably leads to lower hypoxaemia compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.72 [0.52, 0.99]
16 studies · 2127 participants
Moderate

First‐attempt success rate · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy may leads to higher successful first attempt compared with direct laryngoscopy (low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 1.05 [1.02, 1.09]
42 studies · 7311 participants
Low

Oesophageal intubation · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy showed no clear difference in oesophageal intubation compared with direct laryngoscopy (low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.51 [0.22, 1.21]
14 studies · 2404 participants
Low

Dental trauma · adults undergoing tracheal intubation

It is very uncertain whether macintosh‐style videolaryngoscopy changes dental trauma compared with direct laryngoscopy (very low certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.68 [0.16, 2.89]
18 studies · 2297 participants
Very low

Cormack‐Lehane grade · adults undergoing tracheal intubation

Macintosh‐style videolaryngoscopy probably leads to lower cormack‐Lehane grade compared with direct laryngoscopy (moderate certainty).

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
RR 0.38 [0.29, 0.48]
38 studies · 4368 participants
Moderate

Duration of tracheal intubation · adults undergoing tracheal intubation

1 finding from 1 review

Videolaryngoscopy versus direct laryngoscopy for adults undergoing tracheal intubation 2022 · Cochrane Headline outcomes only
no estimate extracted
35 studies · 4061 participants
Very low