NDLI: Acquisition of basic ear surgery skills: a randomized comparison between endoscopic and microscopic techniques

Content Provider	Springer Nature : BioMed Central
Author	Anschuetz, Lukas Stricker, Daniel Yacoub, Abraam Wimmer, Wilhelm Caversaccio, Marco Huwendiek, Sören
Abstract	Background Endoscopic ear surgery is gaining increasing popularity and has an important impact on teaching middle ear anatomy and basic surgical skills among residents and fellows. Due to the wide-angled views offered, the approach significantly differs from the established microscopic technique. This randomized study compares the acquisition of basic ear-surgery skills using the endoscopic and microscopic technique under standardized conditions. We aim to investigate the required surgical times, attempts and accidental damages to surrounding structures (errors) in surgeons with different training levels. Methods Final-year medical students (n = 9), residents (n = 14) and consultants (n = 10) from the Department of Otorhinolaryngology, Head and Neck Surgery at the University Hospital of Bern, Switzerland were enrolled in the present study. After randomization every participant had to complete a standard set of grasping and dissecting surgical tasks in a temporal bone model. After the first session the participants were crossed over to the other technique. Results Time required for completion of the surgical tasks was similar for both techniques, but highly dependent on the training status. A significant increase in the number of damages to the ossicular chain was observed with the microscopic as compared to the endoscopic technique (p < 0.001). Moreover, students beginning with the endoscopic technique showed an overall significantly lower amount of time to complete the tasks (p = 0.04). From the subjective feedback a preference towards the endoscopic technique mainly in medical students was observed. Conclusions The endoscopic approach is useful and beneficial for teaching basic surgical skills, mainly by providing a reduction of damage to surrounding tissues with similar operating times for both techniques. Moreover, medical students performed significantly faster, when first taught in the endoscopic technique. Especially for young surgeons without previous training in ear surgery, the endoscope should be considered to improve surgical skills in the middle ear.
Related Links	https://bmcmededuc.biomedcentral.com/counter/pdf/10.1186/s12909-019-1803-8.pdf
Ending Page	9
Page Count	9
Starting Page	1
File Format	HTM / HTML
ISSN	14726920
DOI	10.1186/s12909-019-1803-8
Journal	BMC Medical Education
Issue Number	1
Volume Number	19
Language	English
Publisher	BioMed Central
Publisher Date	2019-09-14
Access Restriction	Open
Subject Keyword	Medical Education Theory of Medicine Bioethics Surgical skills Education Teaching Endoscopic ear surgery Microscope Endoscope Theory of Medicine/Bioethics
Content Type	Text
Resource Type	Article
Subject	Education Medicine
Journal Impact Factor	2.7/2023
5-Year Journal Impact Factor	3.4/2023

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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