Tiantian Zou, Aifang Li, Siyu Chen, Xiaowen Dai, Jianjiang Wu*


Department of Anesthesiology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, China


Introduction: To compare the effect of case-based learning (CBL) teaching mode combined with visual laryngoscope with that of traditional lecture combined with ordinary laryngoscope in the teaching of anesthesia undergraduate interns. 

Materials and methods: Of the 37 anesthesia undergraduate interns who visited our hospital, 19 were assigned to the control group and received traditional training; 18 were assigned to the observation group and received CBL combined with visualization training. We recorded the initial intubation success rate, the time required for the initial intubation, the incidence of intubation misentry into the esophagus, the overall intubation success rate, and the overall complications, as well as the theoretical assessment and satisfaction survey.

Results: The observation group scored significantly higher on learning interest, teaching methods, operation intelligibility, and knowledge point comprehension than the control group (P<0.05). The success rate of first intubation and overall success rate of intubation were significantly higher in the observation group than in the control group, and there were no cases of tracheal intubation into the esophagus in the observation group. There was no significant difference in the time between the two groups for the first successful intubation (P>0.05). The incidence of intubation-related complications was significantly lower in the observation group than in the control group (P<0.05). The satisfaction rate of the observation group receiving CBL instruction was significantly higher than that of the control group receiving traditional instruction (P<0.05). The observation group students' overall assessment scores were significantly higher than those in the control group (P<0.05). 

Conclusion: CBL combined with visual laryngoscope for endotracheal intubation teaching mode can help anesthesia undergraduate interns quickly master pertinent anatomical knowledge and endotracheal intubation operation points, increase the success rate of non-difficult endotracheal intubation, and decrease associated complications, all of which contribute to medical safety.


Interns, anesthesiology, endotracheal intubation, CBL, visual laryngoscope.