Comparative effects of airway intubation training through video laryngoscopy and direct laryngoscope on intubation’s outcomes among emergency department interns

The aim of the present study was to evaluate the efficiency and success rate in training air duct piping using laryngoscope video, considering the importance of air duct piping and claiming more success of direct laryngoscope video method with direct laryngoscope.

In the current interventional study, we enrolled 157 medical interns without any intubation experience in the Emergency Department of Imam Hussein Hospital during 2016. Individuals were divided into two groups: the first group, worked with the direct laryngoscopy, and the second group learned to work with the video laryngoscope. To evaluate and to compare the data in two training modalities, the performance of the individuals including seeing vocal cord, proper positioning, correct posture to the moulage, handling and correct insertion of the laryngoscope, and the successful intubation were recorded. All analyses were performed using SPSS, version 19.

Time of intubation and observing vocal cord in the group trained with video laryngoscope was lower than those in the direct laryngoscopy group (23.3±6.8 vs. 28.8±6.4 and 21.9±5.2 vs. 26.9±5.6 sec, respectively; P-value for both=0.001). Furthermore, failure in observing the vocal cords in the direct laryngoscopy group was higher than those in the video laryngoscope group (23.5 vs. 14.5%, P-value=0.217). The percentages of standing in the correct position in the video laryngoscope and direct laryngoscopy group were 85.5 and 66.7%, respectively (P=0.014).

It seems that given the time spent on intubation and the time of observing vocal cord in the group trained with video laryngoscope in comparison with the group who was prepared with a direct laryngoscope, applying video laryngoscope may have better effects in educating medical interns.