title: Comparing McGRATH® MAC, C-MAC®, and Macintosh Laryngoscopes Operated by Medical Students: A Randomized, Crossover, Manikin Study.
abstract: We hypothesized that the McGRATH MAC would decrease the time of intubation compared to C-MAC for novices. Thirty-nine medical students who had used the Macintosh blade to intubate a manikin fewer than 3 times were recruited. The participants performed sequential intubations on the manikin in two simulated settings that included a normal airway and a difficult airway (tongue edema). The intubation time, success rate of intubation, Cormack-Lehane grade at laryngoscopy, and difficulty using the device were recorded. Each participant was asked to identify the device that was most useful. The intubation time decreased significantly and by a similar amount to the McGRATH MAC and C-MAC compared to the Macintosh blade (P< 0.001 andP= 0.017, resp.). In the difficult airway, the intubation times were similar among the three devices. The McGRATH MAC and C-MAC significantly increased the success rate of intubation, improved the Cormack-Lehane grade, and decreased the difficulty score compared to the Macintosh blade in both airway settings. The majority of participants selected the McGRATH MAC as the most useful device. The McGRATH MAC and C-MAC may offer similar benefits for intubation compared to the Macintosh blade in normal and difficult airway situations.
authors.affiliation: Department of Anesthesiology and Pain Medicine and the Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Myungju
authors.initials: M
authors.lastname: Shin
authors.affiliation: Department of Anesthesiology and Pain Medicine and the Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Sun Joon
authors.identifier: 0000-0001-5027-3232
authors.initials: SJ
authors.lastname: Bai
authors.affiliation: Department of Anesthesiology and Pain Medicine and the Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Ki-Young
authors.initials: KY
authors.lastname: Lee
authors.affiliation: Department of Anesthesiology and Pain Medicine and the Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Ein
authors.identifier: 0000-0003-3799-657X
authors.initials: E
authors.lastname: Oh
authors.affiliation: Department of Anesthesiology and Pain Medicine and the Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea.
authors.forename: Hyun Joo
authors.identifier: 0000-0003-1963-8955
authors.initials: HJ
authors.lastname: Kim
mesh_terms: D000328:Adult; D018592:Cross-Over Studies; D005260:Female; D006801:Humans; D020704:Laryngoscopes; D007828:Laryngoscopy / Q000193:education / Q000295:instrumentation / Q000379:methods; D008297:Male; D008348:Manikins; D013337:Students, Medical