Comparison of a New Video Intubation Stylet and McGrath® MAC Video Laryngoscope for Intubation in an Airway Manikin with Normal Airway and Cervical Spine Immobilization Scenarios by Novice Personnel: A Randomized Crossover Study

Table 2

Success rate of intubation, intubation time, teeth click during intubation, and esophageal malposition, in cervical spine immobilization scenario ().

	McGrath®	AVS		Mean difference (95% CI)	Odds ratio (95% CI)
Success	131 (87.3%)	144 (96.0%)	0.007		3.5 (1.3–9.0)
Intubation time (s)	35.1 (13.0)	25.4 (10.2)	< 0.001	9.7 (7.1–12.4)
Dental click	58 (38.7%)	22 (14.7%)	< 0.001		0.3 (0.2–0.5)
Esophageal malposition	3 (2.0%)	1 (0.7%)	0.622		0.3 (0.0–3.2)

Results are shown as mean (standard deviation) or number (proportion). The odds ratio was calculated to determine the probability of the AVS to present each outcome, compared to the McGrath® MAC laryngoscope. In the event of a failed tracheal intubation, the intubation time of the attempt was noted as 60 s. AVS: Aram Video Stylet.