Efficacy of McGRATH®MAC videolaryngoscope blade 1 for tracheal intubation in small children: a randomized controlled clinical study

Masui, Katsuhide; Saito, Tomoyuki; Okuda, Yusuke

doi:10.1007/s00540-023-03207-2

Cited by 1 publication

(3 citation statements)

References 16 publications

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“…Previous reports comparing video and direct laryngoscopes for infants have demonstrated increased intubation success rates with the use of video laryngoscopes [5]. However, more time for intubation was required for the use of video laryngoscopes because more time is required for the tube to pass through the glottis [6,7]. Reports comparing video laryngoscope models have not discovered a video laryngoscope model evidently advantageous for use in children [11][12][13].…”

Section: Discussionmentioning

confidence: 99%

“…The primary objective was to compare the time required for tracheal intubation between McGRATH™ MAC size 2 blade and size 1 blade. The secondary endpoints were the percentage differences between the MAC2 and MAC1 groups based on the following criteria: (1) First-time tracheal intubation success, (2) Replacement of ETT due to size mismatch, (3) Replacement of ETT due to leakage, (4) Time requirement exceeding 1 min for tracheal intubation, (5) Di culty of tracheal intubation ≥ moderate, (6) Cormack classi cation ≥ 3, (7) Adverse events other than low transcutaneous oxygen saturation, and (8) Transcutaneous oxygen saturation decreased by more than 10%.…”

Section: Endpointsmentioning

confidence: 99%

“…The video laryngoscope is a tracheal intubation device with a camera attached to the blade tip, allowing intubation providers and caregivers to view the larynx and glottis indirectly on a screen [4]. Although video laryngoscopes have been demonstrated to have an advantage over direct laryngoscopes in terms of the intubation success rate [5], the time required for intubation can be prolonged [6,7], which seems to be a detriment for video laryngoscopic intubation.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the intubation time between McGRATHTM MAC size 1 and size 2 blades for infants: an observational study

Uchinami,

Fujita,

Mizunoya

et al. 2023

Preprint

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Purpose: This study aimed to determine whether the McGRATHTM MAC size 1 blade, which has become available in recent years, reduced the tracheal intubation time in infants compared to that of the McGRATHTM MAC size 2 blade. Methods: This single-center, retrospective, observational study included patients aged < 1 y who underwent cardiac surgery under general anesthesia. Cases in which the McGRATHTM MAC size 2 blade was used were classified as MAC2 and those in which the McGRATHTM MAC size 1 blade was used as MAC1. The primary endpoint was the difference in time required for tracheal intubation. The results were adjusted for confounding factors (patient weight, career of intubation provider, and risk of difficult tracheal intubation). Other variables included the first successful tracheal intubation rate, number of tracheal intubations, Cormack classification, and adverse events during tracheal intubation. Results: In total, 94 patients met the inclusion criteria, 26 met the exclusion criteria¸ thus 68 patients were analyzed. The median time to tracheal intubation was significantly shorter for MAC1 than for MAC2. (23.5 s vs. 27.0 s; hazard ratio, 1.79; 95% confidence interval, 1.08, 2.95). The adjusted time to tracheal intubation was also significantly shorter in the MAC1 group than in the MAC2 group (hazard ratio, 1.71; 95% confidence interval, 1.00, 2.89). No secondary endpoint showed significant differences. Conclusions: For tracheal intubation in cardiac surgery in infants, using the McGRATHTM MAC size 1 blade may reduce the tracheal intubation time compared to the McGRATHTM MAC size 2 blade.

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