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CC BY-NC-ND 4.0 · Endosc Int Open 2020; 08(10): E1225-E1230
DOI: 10.1055/a-1197-6418
Original article

‘Four-position method’ makes beginner endoscopists aware of spatial positioning of the left hand to master upper gastrointestinal endoscopy

Ken Sugimoto
1   First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
,
Satoshi Osawa
2   Department of Endoscopic and Photodynamic Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
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A standardized technique for gastroscopy: Still missing?Endosc Int Open 2020; 08(10): E1231-E1232
DOI: 10.1055/a-1216-1933

Abstract

Background and study aims We developed a novel “four-position method” for facilitating endoscopy of the upper gastrointestinal tract, and this study aimed to verify its usefulness for beginner endoscopists.

Methods Medical students (n = 121) were divided into three groups. A simulator subsequently was used to perform endoscopy. Group A was taught how to hold the endoscope and move the dial; Group B was taught the “four-position method”; and Group C, in addition to being taught the “four-position method,” was permitted to use an endoscope before introduction to the simulator. In each group, the transit time to various parts of the upper digestive tract was recorded in addition to the time to grasp a clip in the stomach with the forceps. We also surveyed the groups with respect to their impression of the difficulty level of endoscopic operation before and after instructions.

Results Transit time to the cardia was no different among the groups; however, with regard to other targets, Group C reached the sites significantly more quickly than did Groups A and B. Time to clip grasping was significantly shorter in Groups B and C than in Group A. Regarding the impression of the difficulty level, significantly more students in Groups B and C compared to Group A felt that endoscopy was easier after instructions.

Conclusion Learning the “four-position method” made it possible to achieve stable endoscopic manipulation at an early stage and improve subsequent endoscopic procedures.



Publication History

Received: 23 February 2020

Accepted: 19 May 2020

Article published online:
21 September 2020

© 2020. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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