Comparison of the C-mac, truview and conventional Macintosh direct laryngoscope for intubation in patients undergoing surgical procedure under general anesthesia

Abstract

Background & Objectives: Managing the airway is one of the commonest challenges an anesthesiologist encounters in routine practice. Inadequate ventilation, difficult and failed endotracheal intubation may lead to hypoxia resulting in increased adverse respiratory events and worse outcomes in both operative and emergency settings. In recent years, video-laryngoscopes have gained much popularity, including Truview-EVO2 laryngoscope, C-MAC video-laryngoscope, and various other varieties of video-laryngoscope. This study is designed to compare the C-MAC, Truview, and Macintosh laryngoscope for intubation in patients undergoing surgical procedure concerning ease of intubation. Material & Methods: 228 patients with ASA status I-II were randomly selected and divided into 3 groups, Macintosh (M), Truview (T), C-MAC (C), comprising of 76 patients in each group. Our database compared laryngoscopy and intubation time (seconds), Cormack-Lehane (C-L) score, laryngoscopic maneuvers, complications, and hemodynamics among 3 groups. Results: The mean laryngoscopy time (seconds) was significantly longer with T group (19.09±2.69) as compared to C (16.18±1.55) and M groups (12.0±1.36). However, C-L grade I was higher in group C as compared to other groups (p