ArticleAnnals of intensive care2021
Comparison of four channelled videolaryngoscopes to Macintosh laryngoscope for simulated intubation of critically ill patients: the randomized MACMAN2 trial.
Article in Annals of intensive care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07577648 (Comparative Study of the Channelled Blade Astra-Vue Videolaryngoscope and the Non-Channelled CMAC D-Blade Videolaryngoscope in Airway Management), which is not on this map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Comparative Study of the Channelled Blade Astra-Vue Videolaryngoscope and the Non-Channelled CMAC D-Blade Videolaryngoscope in Airway Management: A Randomized Controlled Trial
Who cites it
5 citing papers in PubMed, 7 citations in OpenAlex.
- Carbon footprint comparison of video intubation tools: Disposable laryngoscopes, reusable laryngoscopes, and stylets.PloS one · 2025Article
- Clinically Preferred Videolaryngoscopes in Airway Management: An Updated Systematic Review.Healthcare (Basel, Switzerland) · 2023Review
- A test prototype of a novel flexible video laryngoscope and preliminary verification in a difficult airway management simulator.Biomedical engineering online · 2022Article
- Video Versus Direct Laryngoscopy in Novice Intubators: A Systematic Review and Meta-Analysis.Cureus · 2022Review
- A randomized controlled trial comparing Macintosh laryngoscope and Airtraq video laryngoscope for endotracheal intubation in patients with thyroid swelling: Competing the convention.Journal of family medicine and primary care · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVideolaryngoscopes with an operating channel may improve the intubation success rate in critically ill patients. We aimed to compare four channelled videolaryngoscopes to the Macintosh laryngoscope used for intubation of a high-fidelity simulation mannikin, in a scenario that simulated critical illness due to acute respiratory failure.
resultsOf the 79 residents who participated, 54 were considered inexperienced with orotracheal intubation. Each participant used all five devices in random order. The first-pass success rate was 97.5% [95% CI 91.1-99.7] for Airtraq™, KingVision™, and Pentax AWS200™, 92.4% [95% CI 84.2-97.2] for VividTrac VT-A100™, and 70.9% [95% CI 59.6-80.6] for direct Macintosh laryngoscopy. The first-pass success rate was significantly lower with direct Macintosh laryngoscopy than with the videolaryngoscopes (p < 0.0001 for Airtraq™, KingVision™, Pentax AWS200™, and VividTrac VT-A100™).
conclusionThe Airtraq™, KingVision™, and Pentax AWS200™ channelled videolaryngoscopes produced high first-pass success rates with a lower boundary of the 95% CI above 90%. A multicentre, randomised controlled clinical study comparing channelled videolaryngoscopy to direct laryngoscopy should include one of these three videolaryngoscopes.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.