Aim: We compared the utility of the conventional Macintosh laryngoscope, the Pentax Airway Scope, and the McGrath MAC video laryngoscope under restricted cervical motion using a manikin. Methods: We recruited 36 participants into the simulation study. The manikin's cervical motion was restricted with a cervical collar and a head immobilizer, as occurs in trauma cases. We recorded the time to intubation and the success rate of the intubations. Results: Data are medians and ranges. The time to intubation under normal and restricted cervical motion were 22.5 (10-78) and 23 (9-119) s with the Macintosh laryngoscope, 13.5 (5-50) and 14 (7-119) s with the Airway Scope, and 13 (6-32) and 18 (7-80) s with the McGrath MAC video laryngoscope. The differences in the time to intubation between normal and restricted cervical motion were significant only with the McGrath MAC (P = 0.0008). With restricted cervical motion, the times to intubation in the Airway Scope attempts were significantly shorter than those in the Macintosh laryngoscope (P = 0.0005) and McGrath MAC (P = 0.0282) attempts. The success rates under normal and restricted cervical motion were 100% and 80.6% with the Macintosh laryngoscope (P = 0.0054), 100% and 100% with the Airway Scope, and 100% and 97.2% with the McGrath MAC, respectively. Conclusion: In the present study, the Airway Scope was the best among the three devices. However, the differences between the Airway Scope and the McGrath MAC video laryngoscope may not be serious in a clinical situation. Data were gathered using a manikin, and further studies will be necessary.
Aim: We compared the utility of the conventional Macintosh laryngoscope, the Pentax Airway Scope, and the McGrath MAC video laryngoscope under restricted cervical motion using a manikin. Methods: We recruited 36 participants into the simulation study. The manikin's cervical motion was restricted with a cervical collar and a head immobilizer, as occurs in trauma cases. We recorded the time to intubation and the success rate of the intubations. Results: Data are medians and ranges. The time to intubation under normal and restricted cervical motion were 22.5 (10-78) and 23 (9-119) s with the Macintosh laryngoscope, 13.5 (5-50) and 14 (7-119) s with the Airway Scope, and 13 (6-32) and 18 (7-80) s with the McGrath MAC video laryngoscope. The differences in the time to intubation between normal and restricted cervical motion were significant only with the McGrath MAC (P = 0.0008). With restricted cervical motion, the times to intubation in the Airway Scope attempts were significantly shorter than those in the Macintosh laryngoscope (P = 0.0005) and McGrath MAC (P = 0.0282) attempts. The success rates under normal and restricted cervical motion were 100% and 80.6% with the Macintosh laryngoscope (P = 0.0054), 100% and 100% with the Airway Scope, and 100% and 97.2% with the McGrath MAC, respectively. Conclusion: In the present study, the Airway Scope was the best among the three devices. However, the differences between the Airway Scope and the McGrath MAC video laryngoscope may not be serious in a clinical situation. Data were gathered using a manikin, and further studies will be necessary.
Entities:
Keywords:
Macintosh laryngoscope; McGrath MAC video laryngoscope; Pentax Airway Scope; sniffing position; tracheal intubation
Authors: Wolfgang A Wetsch; Oliver Spelten; Martin Hellmich; Martin Carlitscheck; Stephan A Padosch; Heiko Lier; Bernd W Böttiger; Jochen Hinkelbein Journal: Resuscitation Date: 2011-12-07 Impact factor: 5.262
Authors: A M Taylor; M Peck; S Launcelott; O R Hung; J A Law; K MacQuarrie; D McKeen; R B George; J Ngan Journal: Anaesthesia Date: 2012-11-05 Impact factor: 6.955