CC BY-NC-ND 4.0 · Endosc Int Open 2021; 09(05): E674-E683
DOI: 10.1055/a-1352-3850
Original article

Effects of endoscopy-related procedure time on musculoskeletal disorders in Japanese endoscopists: a cross-sectional study

Ippei Matsuzaki
1   Department of Gastroenterology, Yamashita Hospital, Ichinomiya, Japan
Takeshi Ebara
2   Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
Mafu Tsunemi
3   Department of Nursing, Yamashita Hospital, Ichinomiya, Japan
Yoshifumi Hatta
2   Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
Kojiro Yamamoto
2   Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences and Medical School, Nagoya, Japan
Akemi Baba
4   Department of Clinical laboratory, Yamashita Hospital, Ichinomiya, Japan
Masashi Hattori
1   Department of Gastroenterology, Yamashita Hospital, Ichinomiya, Japan
Masanao Nakamura
5   Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
Mitsuhiro Fujishiro
5   Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
› Author Affiliations


Background and study aims There has been little evidence assessing the prevalence of musculoskeletal disorders (MSDs) among endoscopists performing recent diagnostic and therapeutic endoscopic procedures requiring prolonged procedural times. We evaluated the prevalence and identified the risk factors for developing MSDs, focusing on procedural time.

Methods An electronic survey of endoscopists (n = 213) employed at the Nagoya University Hospital and its affiliated hospitals was developed by a multidisciplinary group. 

Results Of the 110 endoscopists (51.6 %) who responded to the survey, eighty-seven endoscopists (79.1 %) had experienced endoscopy-related MSDs during the previous 1 year, and 49 endoscopists (44.5 %) had experienced these MSDs during the previous week. Nineteen endoscopists (17.3 %) reported absence from work due to severe MSDs. The most frequent sites of MSDs were neck, low back, and shoulders. Logistic regression analyses showed that longer upper endoscopic submucosal dissection ESD, (odds ratio: 5.7; 95 %CI: 1.3–25.0), lower ESD (odds ratio 4.9; 95 %CI: 1.1–22.0), and lower gastrointestinal treatment (odds ratio: 5.6; 95 %CI: 2.3–13.3) were significantly associated with the development of MSDs in the low back area. Moreover, longer lower ESD (odds ratio: 5.0; 95 % CI: 1.2–20.2) was a risk factor for symptoms in the left shoulder.

Conclusion This study suggests a correlation between the volume of therapeutic endoscopic procedures including ESD and the risk of MSDs mainly low back area and left shoulder. Managing monthly total endoscopic time, in light of organizational ergonomics, could contribute to minimizing such risks of endoscopy-related MSDs.

Publication History

Received: 29 September 2020

Accepted: 30 November 2020

Article published online:
22 April 2021

© 2021. 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 commercial purposes, or adapted, remixed, transformed or built upon. (

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