Introduction

The C-MAC D-blade was designed for difficult airway intubation scenarios. To facilítate easier and faster endotracheal intubation in the laryngoscopy paradox, an introducer is preferred. Hence, we decided to conduct a study to compare the 60° angled C-MAC stylet and the gum elastic bougie as aids to intubation while using the C-MAC D-blade laryngoscope in a simulated difficult airway setting.

Objective

To compare the ease of oral intubation with the use of the C-MAC stylet (60° angled stylet) versus intubation performed over a bougie inserted using the C-MAC D-blade guidance in patients with simulated restricted cervical mobility.

Method

Prospective, randomized controlled single-center study. Intubation using the C-MAC D-blade laryngoscope was performed in 48 surgical patients randomly assigned to 2 groups of 24 each: Stylet group, Group S (using 60° angled stylet) and Bougie group, Group B (using bougie) after providing manual in-line stabilization to restrict cervical mobility. The Mann-Whitney U test and the Chi square test were used as applicable.

Results

The use of stylet resulted in easier (Group S 75% vs. Group B 16.7%) and faster (Group S 26.83 ± 8.61s vs. Group B 47.18 ± 16.46s) intubation with fewer attempts compared to group B. Both groups experienced a similar hemodynamic stress response to intubation.

Conclusions

The 60° angled C-MAC Stylet is a more effective and time-saving intubation aid with C-MAC D-blade compared to bougie.

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