Clinical Endoscopy

Yutaka Okagawa

2 Articles

Preclinical Efficacy and Clinical Feasibility of a Novel Aerosol-Exposure Protection Mask for Esophagogastroduodenoscopy: Mai Ego Makiguchi, Seiichiro Abe, Yutaka Okagawa, Satoru Nonaka, Haruhisa Suzuki, Shigetaka Yoshinaga, Ichiro Oda, Okamoto Ryuta, Yutaka Saito; Clin Endosc 2022;55(2):226-233. Published online December 15, 2021; DOI: https://doi.org/10.5946/ce.2021.178-IDEN

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Background
/Aims: This study aimed to assess the efficacy of a novel aerosol-exposure protection (AP) mask in preventing coronavirus disease in healthcare professionals during upper gastrointestinal endoscopy and to evaluate its clinical feasibility.
Methods
In Study 1, three healthy volunteers volitionally coughed with and without the AP mask in a cleanroom. Microparticles were visualized and counted with a specific measurement system and compared with and without the AP mask. In Study 2, 30 patients underwent endoscopic resection with the AP mask covering the face, and the SpO2 was measured throughout the procedure.
Results
In Study 1, the median number of microparticles in volunteers 1, 2, and 3 with and without the AP mask was 8.5 and 110.0, 7.0 and 51.5, and 8.0 and 95.0, respectively (p<0.01). Using the AP mask, microparticles were reduced by approximately 92%. The median distances of microparticle scattering without the AP mask were 60, 0, and 68 in volunteers 1, 2, and 3, respectively. In Study 2, the mean SpO2 was 96.3%, and desaturation occurred in three patients.
Conclusion
The AP mask could provide protection from aerosol exposure and can be safely used for endoscopy in clinical practice.

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Aerosol and Droplet Dispersion Control during Bronchoscopy Using a Newly Developed Oxygen Mask
Yuki Nagamatsu, Masatoshi Kakihana, Yujin Kudo, Wakako Hamanaka, Yohei Kawaguchi, Yuki Yamada, Chiaki Kanno, Sachio Maehara, Masaru Hagiwara, Tatsuo Ohira, Norihiko Ikeda
Respiratory Endoscopy.2024; 2(1): 25. CrossRef
A Novel Aerosol-Exposure Protection Mask for Patients During Upper Endoscopy
Soo-Jeong Cho
Clinical Endoscopy.2022; 55(2): 208. CrossRef

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Endocuff-Assisted versus Cap-Assisted Colonoscopy Performed by Trainees: A Retrospective Study: Yutaka Okagawa, Tetsuya Sumiyoshi, Yusuke Tomita, Shutaro Oiwa, Fumihiro Ogata, Takashi Jin, Masahiro Yoshida, Ryoji Fujii, Takeyoshi Minagawa, Kohtaro Morita, Hideyuki Ihara, Michiaki Hirayama, Hitoshi Kondo; Clin Endosc 2020;53(3):339-345. Published online January 10, 2020; DOI: https://doi.org/10.5946/ce.2019.124

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Background
/Aims: The adenoma detection rate (ADR) of screening colonoscopies performed by trainees is often lower than that of colonoscopies performed by experts. The effcacy of cap-assisted colonoscopy (CAC) in adenoma detection is well documented, especially that of CACs performed by trainees. Endocuff, a new endoscopic cap, is reportedly useful for adenoma detection; however, no trials have compared the effcacy of Endocuff-assisted colonoscopy (EAC) and CAC conducted by trainees. Therefore, the present study retrospectively compared the effcacy between EAC and CAC in trainees.
Methods
This was a single-center, retrospective study involving 305 patients who underwent either EAC or CAC performed by three trainees between January and December 2018. We evaluated the ADR, mean number of adenomas detected per patient (MAP), cecal intubation rate, cecal intubation time, and occurrence of complications between the EAC and CAC groups.
Results
The ADR was significantly higher in the EAC group than in the CAC group (54.3% vs. 37.3%, p=0.019), as was the MAP (1.36 vs. 0.74, p=0.003). No significant differences were found between the groups with respect to the cecal intubation rate or cecal intubation time. No major complications occurred in either group.
Conclusions
Our results suggest that EAC exhibits increased ADR and MAP compared to CAC when performed by trainees.

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The impact of EndoCuff-assisted colonoscopy on the polyp detection rate: A cross-over randomized back-to-back study
Mohammed Sherif Naguib, Ahmed Khairy, Hany Shehab, Hazem Abosheaishaa, Abdel Meguid Kassem
Arab Journal of Gastroenterology.2024; 25(2): 102. CrossRef
Comparative Efficacy of Endoscopic Assist Devices on Colonic Adenoma Detection
Simcha Weissman, Tej I. Mehta, Daniel J. Stein, Kartikeya Tripathi, Nathan Rosenwald, Sindhura Kolli, Muhammad Aziz, Joseph D. Feuerstein
Journal of Clinical Gastroenterology.2022; 56(10): 889. CrossRef
Accessories to Enhance Adenoma Detection Rates: Is the Endocuff Better than the Conventional Cap for Trainees?
Tae-Geun Gweon, Sang-Bum Kang
Clinical Endoscopy.2020; 53(3): 251. CrossRef
Endocuff‐assisted colonoscopy versus cap‐assisted colonoscopy for adenoma detection rate: A meta‐analysis of randomized controlled trials
Ai Li, Jing‐Ze Yang, Xiao‐Xiao Yang, Bing‐Cheng Feng, Ming‐Ming Zhang, Jun‐Yan Qu, Ru‐Chen Zhou, Peng Wang, Li‐Xiang Li, Xiu‐Li Zuo, Yan‐Qing Li
Journal of Gastroenterology and Hepatology.2020; 35(12): 2066. CrossRef

5,189 View
126 Download
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