Anatomical trainer for bronchoscopy

Abstract

Background and Goal of Study: Commercial trainers for bronchoscopy are useful for acquiring psychomotor skills, dexterity and eye-hand coordination, but the cost is a limiting factor of accessibility there. Our aim was to make a real-size anatomical model of tracheobronchial tree and investigate it’s suitability for FOB training. Materials and methods: A model of tracheobronchial tree was made based on anatomy textbooks and article by S. Di Domenico from wire, paper, glue and paint using papier-mâché technique. Photos of the trachea, carina and right bronchus were made during the FOB and put next to a real human bronchoscopy photos. 54 medical students (S) performed FOB on our model and on commercial trainer af ter the lecture. 8 certified anaesthesiologists - experts (E) and the same students took the semi-structured interview about our made model. Dif ferences between FOB duration on both trainers were measured by the Wilcoxon signed ranks test at p<0.05. Results and discussion: Almost all answers (E 24, 100%, S 49, 91%) concerning the similarity between the model and real human anatomy (in photos) were “completely similar” and “similar”. E (8, 100%) and S (54, 100%) agreed that anatomical models are necessary for training and would be worth the time spent while making them. 1 (12.5%) E preferred models to be manufactured and stated that making models are beneficial only for students who make them. 3 (37.5%) E, 31 (58.5%) S thought that it would be good for practising and gaining motor skills because of unlimited practice time. 1 (12.5%) E and 13 (24.5%) S emphasized low economical expenses. On the other hand, 1 (12.5%) E and 14 (26.4%) S stated that such model might be short-lived. Others were concerned that colour and texture, lack of cartilage rings might reduce resemblance to real anatomy (E 2, 24.5%, S 19, 35.8%). The duration of FOB on students’ model was 7 - 384 s, mean 51.5±62.98 s, median 27.0 s mode 18.0 s. 4 (7.4%) S did not compl