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The Rigid Tube as an Alternative in Controlling the Problematic Airway
Published on: June 6, 2020
Macintosh laryngoscope versus AMBU King Vision video laryngoscope for endotracheal intubation using a COVID-19
Sangeeta Sahoo1, Neha Singh2, Chitta Ranjan Mohanty1
1Department of Trauma and Emergency, AIIMS, Bhubaneswar, Odisha, India.
Background:
Coronavirus disease 2019 (COVID-19) barrier box is being used by health-care workers for protection against aerosol-transmitted infection. Usually, a Macintosh laryngoscope (MC) or a video laryngoscope (VL) is used for endotracheal intubation (ETI). We aimed to determine the most suitable laryngoscope blade in terms of time to ETI, ease of ETI, and the first-pass success rate.
Methods:
American Society of Anesthesiologists Grade I and II patients undergoing surgery under general anesthesia were randomized into the MC and the King Vision VL groups in a 1:1 ratio. ETI was performed using either the MC (the MC group) or the King Vision VL (the VL group) with a COVID-19 barrier box. The first-pass intubation success rate, intubation time, and ease of ETI were analyzed.
Results:
The first-pass success rate was higher in the MC group (P = 0.43). The mean duration of ETI was 33 s and 47 s in the MC group and VL group, respectively. The difference was statistically significant between the groups (P = 0.002). The ease of ETI was comparable between the groups (P = 0.57), and the Cormack-Lehane grade was significantly different between the groups (P = 0.0025).
Conclusion:
ETI duration was shorter in the MC group than in the VL group. Hence, a MC can be used along with a COVID-19 barrier box by experienced operators for the prevention of aerosol spread.
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