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Comparison of channelled blade with non-channelled Blade of King Vision™ videolaryngoscope for orotracheal intubation: A randomised, controlled, multicentric study

Introduction: We conducted a randomised, controlled, prospective, multicentric comparison of channelled blade versus non-channelled blade of the King Vision™ videolaryngoscope for orotracheal intubation. Patients and Methods: A total of 66 patients included in the study were divided into two groups as follows: Group CH for intubation with channelled blade and Group NC for intubation with non-channelled blade. We compared the intubation time, ease of intubation and best laryngeal view obtained. Ease of intubation was categorised into ease of device insertion and ease of passage of endotracheal tube. Various impingements which occurred at the laryngeal inlet were observed and manoeuvres used to accomplish intubation were noted. Results: The grade of laryngeal exposure and time of laryngeal exposure were similar in both types of blade. We found a shorter intubation time of 15.24 ± 10.6 s in Group CH, whereas it was 28.57 ± 14.09 s in Group NC (P