Comparison of glottic view and ease of orotracheal intubation with Macintosh and McCoy laryngoscopes in anaesthetized adult patients

Handigodu, Arun Kumar Duggappa and Muhamed, Shiyad and Mathew, Shaji and Prabhu, Manjunath and Navada, Jayanth (2019) Comparison of glottic view and ease of orotracheal intubation with Macintosh and McCoy laryngoscopes in anaesthetized adult patients. Sri Lankan Journal of Anaesthesiology, 27 (21). pp. 151-156. ISSN 1391-8834

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Abstract

Background and aims: This study is aimed at comparing glottic view and ease of intubation with Macintosh and McCoyTM laryngoscopes in adult patients.Methods: One hundred forty consenting patients undergoing elective surgery requiring orotracheal intubation were randomly assigned to two groups for assessment of glottic view and ease of intubation. Cormack-Lehane (CL) glottic view, ease of intubation, laryngoscopy time and intubation time were recorded.Results: All recruited patients completed the study, with a single attempt for successful intubation. Demographic profile was comparable between groups. Glottic view represented as CL grade (Macintosh laryngoscope- grade 1 among 100 patients, 2a in 26, 2b in 12 and 3a in 2 patients;McCoyTM laryngoscope- grade 1 in 105, 2a in 20, 2b in 13 and 3a in 2 patients), requirement of additional manoeuvres like optimal external laryngeal manipulation (OELM)/use of lever for best glottic view (OELM in 40 patients, lever in 35 patients), ease of intubation (Macintosh laryngoscope- grade 1 in 49 patients, grade 2 in 21 patients; McCoyTM laryngoscope- grade 1 in 53 patients, grade 2 in 17 patients), mean laryngoscopy time (6.02 ± 1.91s with Macintosh and 6.65 ± 2.09s with McCoyTM laryngoscope) and mean intubation time (15.24 ± 3.01s with Macintosh and 16.09 ± 3.42s with McCoyTM laryngoscope) were comparable between laryngoscopes.Conclusion: In adult patients with essentially normal airway, Macintosh and McCoyTM laryngoscopes provide similar glottic view and ease at intubation, with comparable time required for laryngoscopy and intubation when performed by an experienced anaesthesiologist

Item Type: Article
Uncontrolled Keywords: Airway management; Macintosh; McCoyTM laryngoscope; Optimal external laryngeal manipulation
Subjects: Medicine > KMC Manipal > Anaesthesiology
Depositing User: KMC Library
Date Deposited: 03 Jul 2020 09:29
Last Modified: 03 Jul 2020 09:29
URI: http://eprints.manipal.edu/id/eprint/155382

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