Clinical Investigations
Comparison of glottic view and ease of orotracheal intubation with Macintosh and McCoy laryngoscopes in anaesthetised adult patients
Authors:
Arun Kumar Handigodu Duggappa,
Manipal Academy of Higher Education, Manipal, IN
About Arun Kumar
Associate Professor, Kasturba Medical College
Shiyad Muhamed ,
Manipal Academy of Higher Education, Manipal, IN
About Shiyad
Assistant Professor, Kasturba medical college
Shaji Mathew,
Manipal Academy of Higher Education, Manipal, IN
About Shaji
Professor, Kasturba medical college
Satyanarayana Kuruba Pujari,
East point college of Medical sciences and research center, Bangalore, IN
About Satyanarayana
Assistant Professor
Manjunath Prabhu,
Manipal Academy of Higher Education, Manipal, IN
About Manjunath
HOD and Professor, Kasturba medical college
Jayanth Navada
Manipal Academy of Higher Education, Manipal, IN
About Jayanth
Senior Resident, Kasturba medical college
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 ± 1.91 s with Macintosh and 6.65 ± 2.09 s with McCoyTM laryngoscope) and mean intubation time (15.24 ± 3.01 s with Macintosh and 16.09 ± 3.42 s 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.
How to Cite:
Handigodu Duggappa, A.K., Muhamed, S., Mathew, S., Kuruba Pujari, S., Prabhu, M. and Navada, J., 2019. Comparison of glottic view and ease of orotracheal intubation with Macintosh and McCoy laryngoscopes in anaesthetised adult patients. Sri Lankan Journal of Anaesthesiology, 27(2), pp.151–156. DOI: http://doi.org/10.4038/slja.v27i2.8397
Published on
24 Jul 2019.
Peer Reviewed
Downloads
