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2015 ; 2
(2
): 138-142
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English Wikipedia
Comparison of the conventional Macintosh laryngoscope, the Pentax Airwayscope,
and the McGrath MAC video laryngoscope under restricted cervical motion: a
manikin study
#MMPMID29123710
Kotera A
; Irie H
; Iwashita S
; Taniguchi J
; Kasaoka S
; Kinoshita Y
Acute Med Surg
2015[Apr]; 2
(2
): 138-142
PMID29123710
show ga
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.