Evaluation of Glottic Visualization & Ease of Intubation at Induction of General Anesthesia: Comparison Between Macintosh & Mc-coy Blade Laryngoscopes

Abstract

Objective: To compare the frequency of better glottic visualization and ease of tracheal intubation with Macintosh and McCoy blades.
Methods: This randomized controlled trial was conducted in the Department of Anesthesia, Lahore from September 2017 to March 2018. Atotal of 60 patients booked for elective surgical procedures under general anesthesia of age ranges from 20-40 years, of both genders, were included. Patients with anticipated difficult intubation, diabetes mellitus, hypertension, pulmonary diseases, and ischemic heart diseases were excluded. Patients were randomly divided in two groups: Group 1 (Mc-Coy) and Group 2 (Macintosh) with 30 patients in each group. Laryngoscopy was performed using McCoy blade in Group 1 and with Macintosh blade in
Group 2 and the best possible view of the glottis was sought. Two trained anesthesiologists were involved to grade the view of glottis visualization and ease of intubation.
Results: The mean age of patients in Group 1 and Group 2 was 29.80 ± 6.07 years and 31.93 ± 5.99 years respectively. Out of these 60 patients, 35 (58.33%) were male and 25 (41.67%) were females with male to female ratio of ratio of 1.4:1. Better glottic visualization was found in 60.0% of cases with Macintosh blade and in 83.33% of cases with Mc-Coy blade (p-value = 0.045) and ease of intubation was 73.33% and 93.33% with Macintosh and with McCoy blade respectively (p-value = 0.038).
Conclusion: This study concluded that frequency of better glottic visualization and ease of tracheal intubation with McCoy blades is higher as compared to Macintosh blade.

How to cite: Ghaffar. A., Zaffar M., Rukh L., Waheed M. Evaluation of Glottic Visualization & Ease of Intubation at Induction of General Anesthesia: Comparison Between Macintosh & Mc-coy Blade Laryngoscopes. Esculapio 2021;17(03):