Videolaryngoscopy versus direct laryngoscopy for teaching direct laryngoscopy skills: a systematic review and meta-analysis
Pooled result · First-attempt successResult — go to the resultRR for first-attempt success 1.16 95% CI 1.07–1.25Authors' conclusion
Videolaryngoscopy appears to be an effective tool for teaching direct laryngoscopy.
Study context
- Population
- Trainees learning direct laryngoscopy (RCTs, crossover and observational studies)21 studies
- Comparison
- Videolaryngoscopy vs Direct laryngoscopy
- Outcome
- First-attempt success (critical outcomes also overall success and time to intubation)
Methodological detailsrandom-effects models, Cochrane RoB-2 risk of bias assessment, All but two studies raised concern for risk of bias in at least one domain, Limitations: small sample sizes, heterogeneous data presentation
- Random-effects models
- Cochrane RoB-2 risk of bias assessment
- All but two studies raised concern for risk of bias in at least one domain
- Limitations: small sample sizes, heterogeneous data presentation
Pooled result
First-attempt success
RR for first-attempt success
1.16
95% CI 1.07–1.25
Videolaryngoscopy vs Direct laryngoscopy
RR for first-attempt success 1.16 (95% CI 1.07–1.25)
As reported in the abstract
Further pooled results
| Outcome | RR for overall intubation success (CI) | |
|---|---|---|
| Overall intubation successSeven studies; I2=27%; not significantly different | 1.05 (0.99–1.12) | |
| 0.512RR for overall intubation success (log scale) |
| Outcome | Mean difference (s) (CI) | |
|---|---|---|
| Time to successful intubationSeven studies; I2=73%; not significantly different | −7.4 (−15.8 s to 0.9 s) | |
| −20−10010Difference, s (linear scale) |
Sensitivity analyses
- Sensitivity analyses favoured videolaryngoscopy
Original publication
Videolaryngoscopy versus direct laryngoscopy for teaching direct laryngoscopy skills: a systematic review and meta-analysis. Br J Anaesth. Published 8 July 2025. doi:10.
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