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Matsumoto K, Imagawa A, Ueda N, Watabe H, Ikebuchi Y, Kurumi H, Sasaki YU, Abe Y, Abe R, Mabe K, Noma H, Fujiwara K, Ueki M, Fujishiro M, Isomoto H. Acceptability, Safety, and Feasibility of Transnasal and Peroral Ultrathin Endoscopy Using GAGLESS Mouthpieces: A Prospective Randomized Trial. In Vivo 2024; 38:826-832. [PMID: 38418116 PMCID: PMC10905482 DOI: 10.21873/invivo.13507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 03/01/2024]
Abstract
BACKGROUND/AIM Esophagogastroduodenoscopy (EGD) is an effective screening method for early detection of gastric cancer. The GAGLESS mouthpiece has a structure that widens the pharyngeal cavity and suppresses the pharyngeal reflex. This study aimed to investigate the acceptability, safety, and feasibility of transnasal and peroral ultrathin endoscopy using GAGLESS mouthpieces (Clinical Trial Number: UMIN000036922). PATIENTS AND METHODS This study was a multicenter, prospective, randomized, open-label trial performed using a questionnaire. The study included 101 consecutive patients who visited the participating medical institutions between June 2019 and March 2022 (median age=47 years, range=24-87 years; all male). Patients aged ≥20 years at the time of consent acquisition who were the first to undergo EGD were included in the study. The primary endpoint was the degree of distress during EGD, as determined using a visual analog scale (VAS). RESULTS The VAS score during endoscopic passage through the pharynx was significantly better in the transnasal endoscopy group than in the oral endoscopy group (2.420 vs. 4.092, p=0.001). There was no significant difference in the VAS scores between the two groups during anesthesia or throughout the examination. Compared with nasal endoscopy, oral endoscopy with a GAGLESS mouthpiece did not reduce the VAS score but did significantly improve gastric visibility. CONCLUSION For patients in whom there was difficulty in inserting a nasal endoscope, using a GAGLESS mouthpiece rather than a conventional mouthpiece may be more useful in reducing pain.
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Affiliation(s)
- Kazuya Matsumoto
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine, Yonago, Japan;
- Irisawa Medical Clinic, Matsue, Japan
| | | | - Naoki Ueda
- Yasugi Municipal Hospital, Yasugi, Japan
| | | | - Yuichiro Ikebuchi
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine, Yonago, Japan
| | - Hiroki Kurumi
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine, Yonago, Japan
| | - Y U Sasaki
- Department of Gastroenterology, Faculty of Medicine, Yamagata University, Yamagata, Japan
| | - Yasuhiko Abe
- Department of Gastroenterology, Faculty of Medicine, Yamagata University, Yamagata, Japan
- Division of Endoscopy, Yamagata University Hospital, Yamagata, Japan
| | - Ryo Abe
- Yonago Chuo Clinic, Yonago, Japan
| | - Katsuhiro Mabe
- Junpukai Health Maintenance Center Kurashiki, Kurashiki, Japan
| | - Hisashi Noma
- Department of Data Science, The Institute of Statistical Mathematics, Tachikawa, Japan
| | - Kazunori Fujiwara
- Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Masaru Ueki
- Division of Medical Education, Department of Medical Education, Tottori University Faculty of Medicine, Yonago, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hajime Isomoto
- Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Tottori University Faculty of Medicine, Yonago, Japan
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Special Issue “The Next Generation of Upper Gastrointestinal Endoscopy”. Diagnostics (Basel) 2022; 12:diagnostics12010152. [PMID: 35054319 PMCID: PMC8775017 DOI: 10.3390/diagnostics12010152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 11/17/2022] Open
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