Evaluation of the Airway Scope, a new video laryngoscope, in tracheal intubation by naive operators: a manikin study

Miki, Takao; Inagawa, Gaku; Kikuchi, Takayuki; Koyama, Yukihide; Goto, Takahisa

doi:10.1111/j.1399-6576.2007.01450.x

Cited by 47 publications

(36 citation statements)

References 16 publications

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“…Our data support the findings of previous manikin studies of inexperienced practitioners, using other indirect or videolaryngoscopes, such as the Airway Scope (Pentax, Tokyo, Japan) [11,12,15,16], Glidescope (Verathon Medical, Bothell, WA, USA) [14,16], and Airtraq (Fannin (UK) Ltd, Calcot, Reading UK) [9,10,13], and adds to these by showing that videolaryngoscopy can aid the teaching of direct laryngoscopy. These studies differ in some respects including the difficulty of laryngoscopy, the numbers of intubation attempts studied, and the nature and detail of instruction given before tracheal intubation was attempted.…”

Section: Discussionsupporting

confidence: 79%

“…Based on previous studies [9,10,15], we assumed an overall success rate of tracheal intubation of 95% for the McGrath and 85% for the Macintosh. We calculated that 184 intubations per laryngoscope were needed to achieve 80% power at a significance level of 0.05 (two-sided), and rounded the number to 200 for each laryngoscope.…”

Section: Methodsmentioning

confidence: 99%

“…However, this skill is difficult to acquire [6][7][8]. Videolaryngoscopy is now a widely accepted airway management technique that may be easier for novice and inexperienced practitioners to learn [9][10][11][12][13][14][15][16].…”

mentioning

confidence: 99%

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A comparison of McGrath and Macintosh laryngoscopes in novice users: a manikin study

Ray¹,

Billington

Kearns

et al. 2009

Anaesthesia

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SummaryDirect laryngoscopy using the Macintosh laryngoscope is a difficult skill to acquire. Videolaryngoscopy is a widely accepted airway management technique that may be easier for novices to learn. We compared the McGrath Ò videolaryngoscope and Macintosh laryngoscope by studying the performance of 25 medical students with no previous experience of performing tracheal intubation using an easy intubation scenario in a manikin. The order of device use was randomised for each student. After brief instruction each participant performed eight tracheal intubations with one device and then eight tracheal intubations with the other laryngoscope. Novices achieved a higher overall rate of successful tracheal intubation, avoided oesophageal intubation and produced less dental trauma when using the McGrath. The view at laryngoscopy was significantly better with the McGrath. Intubation times were similar for both laryngoscopes and became shorter with practice. There was no difference in participants' rating of overall ease of use for each laryngoscope.

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Section: Discussionsupporting

confidence: 79%

Section: Methodsmentioning

confidence: 99%

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A comparison of McGrath and Macintosh laryngoscopes in novice users: a manikin study

Ray¹,

Billington

Kearns

et al. 2009

Anaesthesia

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“…14 Our finding that the Pentax AWS Ò reduced tracheal intubation times agrees with one 14 but does not agree with a second 22 prior study in novice users. Of particular interest, the duration of intubation attempts with the AWS Ò compared well with that recorded by experienced anesthesiologists in our recent study.…”

Section: Discussionsupporting

confidence: 72%

A comparison of the Glidescope®, Pentax AWS®, and Macintosh laryngoscopes when used by novice personnel: a manikin study

Malik

Hassett

Carney

et al. 2009

Can J Anesth/J Can Anesth

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“…[4] Videolaryngoscopy has become a widely accepted technique for training both novice and inexperienced medical staff on airway management. [5][6][7] In cases where neither direct laryngoscopy nor tracheal intubation is achieved, videolaryngoscopes generally secure the glottic view with less manipulation as compared to direct laryngoscopes. Besides, because learning the technique is relatively easy, videolaryngoscopy brings high success rates even for beginners.…”

mentioning

confidence: 99%

A randomized, crossover model-based study of five different laryngoscopes in normal airway scenario

Saraçoğlu¹

2015

FNG & Bilim Tıp Dergisi

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Objectives: Direct laryngoscopy is a conventional method that has been taught in endotracheal intubation training. However, it is difficult to become skilled. Videolaryngoscopy has become a widely accepted technique for training both novice and inexperienced medical staff on airway management. We aimed to compare the performances of novices using direct and indirect laryngoscopes. Materials and methods: Fifty eight first-year anesthesia nurse students without previous tracheal intubation experience were included in the study. Standard size 3 Macintosh, Miller, McCoy, McGrath, Storz C-Mac laryngoscopes were used. The participants were asked to intubate the AirMan manikin five times with each device. The participants were also asked for their familiarity with computer games. After all the students completed their fifth intubations; the duration of successful tracheal intubation, number of attempts, success rate, severity of the dental trauma, and the used optimization maneuvers were recorded in the course of students' sixth intubations. Results: Time to successful intubation was the shortest for C-Mac laryngoscope with 5.34±2.19 sec. The requirement of optimization maneuvers (12.1%) and additional intubation attempts (1.7%) were significantly lower with C-Mac and McGrath laryngoscopes compared to Macintosh, Miller and McCoy laryngoscopes (p<0.001). Dental trauma incidence was significantly lower during the use of C-Mac laryngoscope (p<0.001). The VAS score on the ease of intubation were significantly lower with C-Mac laryngoscope. No advantages related to the familiarity with computer games were documented. Conclusion: In conclusion, C-Mac was observed to provide a higher overall success rate for tracheal intubation and less dental trauma incidence when it was used in a normal airway scenario.Keywords: Airway; intubation; laryngoscope.Normal havayolu senaryosunda beş farklı laringoskopa ait randomize, crossover, manken bazlı bir çalışma Dental travma insidansı C-Mac laringoskop kullanımında anlamlı olarak daha düşüktü (p<0.001). Entübasyon kolaylığı üzerine Görsel analog skala skorları C-Mac laringoskopla anlamlı olarak daha düşüktü. Bilgisayar oyunlarına yatkınlıkla ilişkili bir avantaj dökümente edilemedi. Sonuç: Sonuç olarak normal havayolu senaryosunda C-Mac'ın trakeal entübasyon için daha yüksek genel başarı oranı ve daha düşük dental travma insidansı sağladığı ortaya konuldu.Anahtar sözcükler: Havayolu; entübasyon; laringoskop.

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Evaluation of the Airway Scope, a new video laryngoscope, in tracheal intubation by naive operators: a manikin study

Abstract: AWS is more useful for beginners as it provides quicker and easier tracheal intubation.

Cited by 47 publications

References 16 publications

A comparison of McGrath and Macintosh laryngoscopes in novice users: a manikin study

A comparison of McGrath and Macintosh laryngoscopes in novice users: a manikin study

A comparison of the Glidescope®, Pentax AWS®, and Macintosh laryngoscopes when used by novice personnel: a manikin study

A randomized, crossover model-based study of five different laryngoscopes in normal airway scenario

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