Pioneers of Laryngoscopy: Indirect, Direct and Video Laryngoscopy

Pieters, B. M. A.; Eindhoven, G. B.; Acott, Christopher J; Zundert, André van

doi:10.1177/0310057x150430s103

Cited by 50 publications

(31 citation statements)

References 51 publications

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“…11 In addition, PVL has a hyper-curved, angulated blade, while MVL has a less angulated blade, similar to DL. 1 In a study of the GlideScope with a hyper-curved blade, an intentionally restricted glottic view was associated with faster and easier intubations compared with cases with full glottic views. 22 During the use of GlideScope, the full view of the glottis may interfere with tube insertion by increasing the mismatch of the tube tip and the trachea.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, it would be more reasonable to verify glottic view before inserting the ETT into the nostril. 31 Lastly, this study did not include the GlideScope, one of the most popular VLs in current clinical practice, 1,[11][12][13] because of its limited availability at our institute.…”

Section: Discussionmentioning

confidence: 99%

“…A variety of videolaryngoscopes (VLs) have been developed since the early 2000s to solve difficult airway problems. 1 Several types of VLs are available, each with different strengths and weaknesses, which are useful for a variety of situations. Many studies are ongoing to evaluate the usefulness of VLs under a variety of clinical situations.…”

mentioning

confidence: 99%

“…2,3 The McGrath MAC VL (Covidien, Mansfield, MA, USA) (MVL) is a non-channelled Macintosh direct laryngoscope (DL)-shaped VL. 1 It has a display monitor at the top of the handle and can present superior glottis views in both normal and difficult airways compared with the DL. 4,5 Because the MVL is structurally similar to the DL, an anesthesiologist familiar with DLs may prefer the device.…”

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confidence: 99%

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Randomized comparison of McGrath MAC videolaryngoscope, Pentax Airway Scope, and Macintosh direct laryngoscope for nasotracheal intubation in patients with manual in-line stabilization

Roh

Kwak

Lee

et al. 2019

Can J Anesth/J Can Anesth

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Background The objective of this study was to determine the clinical usefulness of videolaryngoscopes (VLs) by comparing the time to intubation (TTI) and the ease of intubation of McGrath MAC VL (MVL), Pentax Airway Scope VL (PVL), and Macintosh direct laryngoscope (DL) during nasotracheal intubation using manual in-line stabilization to simulate difficult airways. Methods One hundred and twenty patients were randomly assigned to the MVL group (n = 40), the PVL group (n = 40), and the DL group (n = 40). Nasotracheal intubation was performed using MVL, PVL, or DL, according to group assignments. The primary outcome was TTI and secondary outcomes were glottic view, ease of intubation, and bleeding. ResultsThe TTI was significantly shorter in the MVL group than in the DL group (45 sec vs 57 sec; difference in means: -12; 95% confidence interval [CI], -21 to -3; P = 0.01). The percentage of glottic opening and Cormack Lehane grade were significantly superior in the MVL and the PVL groups compared with the DL group (both P \ 0.001). The intubation difficulty scale and numeric rating scale regarding ease of intubation were also significantly lower in the MVL and PVL groups than in the DL group (all P\0.007). The incidence of bleeding was significantly lower in the MVL group than in the DL group (3 vs 15, relative risk 0.2; 95% CI, 0.06 to 0.64; P = 0.001). Conclusion This study showed that both MVL and PVL provided better visualization of the glottis and easier intubation, with less additional manipulation than DL during nasotracheal intubation in simulated difficult airways. Additionally, use of the MVL significantly shortened the TTI compared with the DL. Trial registration www.clinicaltrials.gov (NCT02647606); registered 6 January, 2016. RésuméContexte L'objectif de cette étude était de déterminer l'utilité clinique des vidéolaryngoscopes (VL) en comparant le temps jusqu'à intubation (TTI) et la facilité d'intubation du VL McGrath MAC (MVL), du VL Pentax Airway Scope (PVL), et du laryngoscope avec lame Macintosh (DL) pour une intubation nasotrachéale avec

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Randomized comparison of McGrath MAC videolaryngoscope, Pentax Airway Scope, and Macintosh direct laryngoscope for nasotracheal intubation in patients with manual in-line stabilization

Roh

Kwak

Lee

et al. 2019

Can J Anesth/J Can Anesth

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“…(3) The practice of endotracheal intubation has evolved over the last decade with the introduction of videolaryngoscopes and other forms of indirect laryngoscopy. (4) No single device has been shown to be superior. However, by providing improved visualisation of the vocal cords, videolaryngoscopes have made the practice of laryngoscopy easier compared with conventional standard laryngoscopes.…”

Section: Introductionmentioning

confidence: 99%