Evaluation of the success rate of intubation in normal modeling with two methods of video laryngoscopy(teacher documented) and conventional laryngoscopy by medical students

Abstract

Tracheal intubation is one of the basic and important skills in medical education. Skill in performing it requires knowledge of airway anatomy and physiology, the ability to evaluate and identify patients with difficult airways, having sufficient skills in the proper use of airway management equipment and the appropriate method of doing it. Learning to see with a Macintosh laryngoscope is difficult because the student cannot see the full view of the larynx and vocal cords next to the teacher. To compensate for these limitations, more efforts were made to invent different devices and techniques. Video laryngoscopes provide the possibility of viewing the structure of the larynx on the monitor. The images on the monitor can be seen simultaneously by the learner and the teacher, and this advantage can be useful in intubation training. Considering that the internship is one of the important courses of medical education and it should be designed in such a way that its content is suitable for the future work situation and the real environment and the graduates acquire the necessary skills to provide services to the society and also On the other hand, evaluating the level of ability of medical trainees in managing the airway is one of the research concerns, in this study we decided to determine the success rate of intubation in molage with a normal airway with two methods of laryngoscopy with videoendoscopy and direct laryngoscopy with a Macintosh blade. To be paid by medical students.

method: This study was conducted with the participation of 58 medical students (externs) in two direct laryngoscopy groups with a Macintosh blade and video endoscopy group in the center of education, research and clinical skills assessment of the Faculty of Pharmacy during 1402. First, the students performed intubation on the mollage with a normal airway by direct laryngoscopy using a Mcintosh blade, and then intubation was performed again with a video laryngoscopy. Their performance including time required for intubation, success rate, number of attempts and satisfaction in both groups were recorded and compared with each other.

Findings: In the present study, the amount of time required for intubation was higher in the normal laryngoscopy group and the average number of attempts in the videolaryngoscopy group was significantly lower (p=0.05) and most of the students (68.9%) in the videolaryngoscopy group were able to perform the correct intubation with one attempt. Also, most of the students in the videolaryngoscopy group had a good level of satisfaction of 44.8% and an excellent level of 51.7%.