Man or machine? Impact of tutor-guided versus simulator-guided short-time bronchoscopy training on students learning outcomes.

Schertel, Anke; Geiser, Thomas; Hautz, Wolf E. (2021). Man or machine? Impact of tutor-guided versus simulator-guided short-time bronchoscopy training on students learning outcomes. BMC medical education, 21(1), p. 123. BioMed Central 10.1186/s12909-021-02526-w

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BACKGROUND

Simulation based medical education is efficient for the acquisition of flexible bronchoscopy navigational skills and the knowledge of the tracheobronchial anatomy. However, bronchoscopy simulator training is not routinely integrated into pneumologic fellowship programs or undergraduate medical education for time and/or cost reasons. Our study compares the effect of self-guided bronchoscopy simulator training versus tutor guided training on the acquisition of navigational skills and knowledge of the bronchial anatomy.

METHODS

Third-year undergraduate medical students were randomized to either a tutor- or simulator guided bronchoscopy simulator training focusing on the acquisition of navigational skills and the knowledge of the tracheobronchial anatomy. Every student performed a baseline bronchoscopy followed by a structured bronchoscopy simulator training and finally an assessment bronchoscopy at the end of the training program. Groups were compared by means of a repeated measurement ANOVA and effect sizes calculated as Cohens' d.

RESULTS

Fifty-four eligible students participated in the study. Knowledge of the tracheobronchial anatomy significantly increased from pre- to post training (all p < 0.001; all d > 2), navigational skills significantly decreased (all p < 0.005; all d < 1). There were no significant differences between groups. Instruction by the simulator as well as by the tutor was rated as helpful by the students. Twenty-two (84.6%) of the participants of the simulator guided group would have appreciated an additional instruction by a tutor.

CONCLUSION

Short-time simulator guided bronchoscopy training improves knowledge of the tracheobronchial anatomy in novice bronchoscopists as much as tutor guided training, but navigational skills seem to worsen in both groups. Further studies assessing transfer to clinical practice are needed to find the optimal teaching method for basic flexible bronchoscopy.

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