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Year : 2019  |  Volume : 2  |  Issue : 3  |  Page : 142-147

Addition of optics to laryngoscope design improves success of intubation: A prospective, observational study

Department of Anaesthesiology, Indira Gandhi Government Medical College, Nagpur, Maharashtra, India

Correspondence Address:
Dr. Vaishali Chandrashekhar Shelgaonkar
Department of Anaesthesiology, Indira Gandhi Government Medical College, Nagpur, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ARWY.ARWY_20_19

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Background: Many novel intubating videoscopes such as the GlideScope, McGrath®, Truview EVO2® videolaryngoscope (VLS), Airtraq® and C-MAC® VLS have been introduced in the recent past in an attempt to reduce airway-related morbidity and mortality. In this study, we aimed to compare the ease and success of intubation using Airtraq, Truview VLS and McCoy blade laryngoscope in non-difficult airway situations. Patients and Methods: Ninety patients with clinically normal airways belonging to American Society of Anesthesiologists Physical Status I–II were randomly assigned to be intubated using Airtraq (Group AL; n = 30), Truview VLS (Group TL; n = 30) or McCoy (Group ML; n = 30). The primary outcome measures were Intubation Difficulty Scale score and time for successful intubation. Assessment of modified Cormack–Lehane (MCL) grade at laryngoscopy, Percentage of Glottic Opening (POGO) score, haemodynamic variations, any optimisation manoeuvre required during endotracheal intubation, ease of intubation score and complications were the secondary outcomes. Results: The time for successful intubation was statistically significantly less with Airtraq as compared with both ML and Truview VLS (P < 0.05). Intubation Difficulty Score improved significantly with Airtraq and Truview VLS when compared with that of McCoy blade. Airtraq and Truview significantly improved MCL grading, POGO score and ease of intubation score. These devices also required less optimisation manoeuvres (P < 0.05) and had less haemodynamic variations although not statistically significant (P > 0.05). Conclusion: We conclude that both the Airtraq and Truview VLS are devices whose optical design improves intubating conditions in patients with non-difficult airways.

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