scholarly journals The usefulness of the McGrath MAC laryngoscope in comparison with Airwayscope and Macintosh laryngoscope during routine nasotracheal intubation: a randomaized controlled trial

2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Aiji Sato ◽  
Kazuya Sobue ◽  
Eisuke Kako ◽  
Naoko Tachi ◽  
Yoko Okumura ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Macintosh Laryngoscope ◽  
Nasotracheal Intubation ◽  
Mcgrath Mac

scholarly journals Tracheal intubation skill retention using a McGRATH® MAC video laryngoscope with real-time feedback by faculty in novice first-year residents: A randomized controlled trial

2021 ◽  
Author(s):  
Yu Yamamoto ◽  
Shohei Kimura ◽  
Hideki Kuniyoshi ◽  
Takanori Hiroe ◽  
Takako Terui ◽  
...  
Keyword(s):  
Endotracheal Intubation ◽  
Controlled Trial ◽  
Macintosh Laryngoscope ◽  
Video Laryngoscope ◽  
Controlled Study ◽  
First Year ◽  
Video Monitor ◽  
Randomized Controlled ◽  
Mcgrath Mac ◽  
Time Required

Abstract BackgroundDuring endotracheal intubation training, only providing verbal guidance to students may result in inadequate recognition of the inner larynx and cause delays in mastering endotracheal intubation. Therefore, we introduced a deliberate practice approach to the education of residents in endotracheal intubation. For this purpose, a video laryngoscope was used to give the residents detailed feedback of the anesthesiology faculty. We hypothesized that if the anesthesiology faculty could provide sufficient and precise feedback of the larynx through the video monitor, the residents’ intubation skills would be retained for a more extended period.MethodsThis cluster randomized controlled study enrolled first-year residents who completed a two-month rotation at our department. Each rotation group (2–4 residents) was assigned to the Macintosh laryngoscope (ML) group or the McGRATH MAC video laryngoscope (MML) group. Endotracheal intubation skills were evaluated on a simulated mannequin immediately after the rotation, three months later, and six months later. The primary endpoint was the time required for intubation. The secondary endpoint was the percentage of glottic opening (POGO) score.ResultsForty-six residents participated in this study and were assigned to the ML group (n = 23) or the MML group (n = 23). The time required for intubation was significantly shorter in the MML group than in the ML group. The POGO score did not show any significant differences between the two groups; however, the POGO score of the MML group had a relatively narrower confidence interval than the ML group.ConclusionsWhen comparing endotracheal intubation training using the Macintosh laryngoscope and video laryngoscope, the McGRATH MAC video laryngoscope shortened the intubation procedure and facilitated long-term skill retention.Trial registrationClinical registry and trial number, URL: https://www.umin.ac.jp, UMIN000036643 date of registration: 2019/05/03, This study was retrospectively registered.

scholarly journals Evaluation of the McGrath MAC and Macintosh laryngoscope for tracheal intubation in 2000 patients undergoing general anaesthesia: the randomised multicentre EMMA trial study protocol

BMJ Open ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. e016907 ◽  
Author(s):  
Marc Kriege ◽  
Christian Alflen ◽  
Irene Tzanova ◽  
Irene Schmidtmann ◽  
Tim Piepho ◽  
...  
Keyword(s):  
Tracheal Intubation ◽  
Direct Laryngoscopy ◽  
Case Reports ◽  
Controlled Trial ◽  
Macintosh Laryngoscope ◽  
Video Laryngoscope ◽  
Successful Intubation ◽  
First Choice ◽  
Mcgrath Mac ◽  
First Pass

IntroductionThe direct laryngoscopy technique using a Macintosh blade is the first choice globally for most anaesthetists. In case of an unanticipated difficult airway, the complication rate increases with the number of intubation attempts. Recently, McGrath MAC (McGrath) video laryngoscopy has become a widely accepted method for securing an airway by tracheal intubation because it allows the visualisation of the glottis without a direct line of sight. Several studies and case reports have highlighted the benefit of the video laryngoscope in the visualisation of the glottis and found it to be superior in difficult intubation situations. The aim of this study was to compare the first-pass intubation success rate using the (McGrath) video laryngoscope compared with conventional direct laryngoscopy in surgical patients.Methods and analysisThe EMMA trial is a multicentre, open-label, patient-blinded, randomised controlled trial. Consecutive patients requiring tracheal intubation are randomly allocated to either the McGrath video laryngoscope or direct laryngoscopy using the Macintosh laryngoscope. The expected rate of successful first-pass intubation is 95% in the McGrath group and 90% in the Macintosh group. Each group must include a total of 1000 patients to achieve 96% power for detecting a difference at the 5% significance level. Successful intubation with the first attempt is the primary endpoint. The secondary endpoints are the time to intubation, attempts for successful intubation, the necessity of alternatives, visualisation of the glottis using the Cormack & Lehane score and percentage of glottic opening score and definite complications.Ethics and disseminationThe project was approved by the local ethics committee of the Medical Association of the Rhineland Palatine state and Westphalia-Lippe. The results of this study will be made available in the form of manuscripts for publication and presentations at national and international meetings.Trial registration numberClinicalTrials.gov NCT 02611986; pre-results.

scholarly journals Neutral Position Facilitates Nasotracheal Intubation with a GlideScope Video Laryngoscope: A Randomized Controlled Trial

2020 ◽  
Vol 9 (3) ◽  
pp. 671
Author(s):  
RyungA Kang ◽  
Ji Seon Jeong ◽  
Justin Sangwook Ko ◽  
Jaemyung Ahn ◽  
Mi Sook Gwak ◽  
...  
Keyword(s):  
Controlled Trial ◽  
Nasotracheal Intubation ◽  
Head Position ◽  
Neutral Position ◽  
Dental Surgery ◽  
Intubation Difficulty ◽  
Difficulty Scale ◽  
Nasotracheal Tube ◽  
Glidescope Video Laryngoscope ◽  
Position Group

The optimal head position for GlideScope facilitated nasotracheal intubation has not yet been determined. We compared the neutral and sniffing positions to establish the degree of intubation difficulty. A total of 88 ASA I-II patients requiring nasotracheal intubation for elective dental surgery with normal airways were divided into two groups according to head position, neutral position (group N), and sniffing position (group S). The primary outcome was the degree of intubation difficulty according to the Intubation Difficulty Scale (IDS): Easy (IDS = 0), mildly difficult (IDS = 1 to 4), and moderately to severely difficult (IDS ≥ 5). Eighty-seven patients completed the study and their data were analyzed. The degree of intubation difficulty was significantly different between the two groups (p = 0.004). The frequency of difficult intubation (IDS > 0) was 12 (27.9%) in group N and 28 (63.6%) in group S (difference in proportion, 35.7%; 95% confidence interval [CI], 14.8 to 52.6%; p = 0.001). The neutral position facilitates nasotracheal intubation with GlideScope by aligning the nasotracheal tube and the glottis inlet more accurately than the sniffing position.

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