Clinical Endoscopy

Osamu Goto

3 Articles

Three-Dimensional Flexible Endoscopy Can Facilitate Efficient and Reliable Endoscopic Hand Suturing: An ex-vivo Study: Jun Omori, Osamu Goto, Kazutoshi Higuchi, Takamitsu Umeda, Naohiko Akimoto, Masahiro Suzuki, Kumiko Kirita, Eriko Koizumi, Hiroto Noda, Teppei Akimoto, Mitsuru Kaise, Katsuhiko Iwakiri; Clin Endosc 2020;53(3):334-338. Published online April 24, 2020; DOI: https://doi.org/10.5946/ce.2019.207

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Background
/Aims: Three-dimensional (3D) flexible endoscopy, a new imaging modality that provides a stereoscopic view, can facilitate endoscopic hand suturing (EHS), a novel intraluminal suturing technique. This ex-vivo pilot study evaluated the usefulness of 3D endoscopy in EHS.
Methods
Four endoscopists (two certified, two non-certified) performed EHS in six sessions on a soft resin pad. Each session involved five stitches, under alternating 3D and two-dimensional (2D) conditions. Suturing time (sec/session), changes in suturing time, and accuracy of suturing were compared between 2D and 3D conditions.
Results
The mean suturing time was shorter in 3D than in 2D (9.8±3.4 min/session vs. 11.2±5.1 min/session) conditions and EHS was completed faster in 3D conditions, particularly by non-certified endoscopists. The suturing speed increased as the 3D sessions progressed. Error rates (failure to grasp the needle, failure to thread the needle, and puncture retrial) in the 3D condition were lower than those in the 2D condition, whereas there was no apparent difference in deviation distance.
Conclusions
3D endoscopy may contribute to increasing the speed and accuracy of EHS in a short time period. Stereoscopic viewing during 3D endoscopy may help in efficient skill acquisition for EHS, particularly among novice endoscopists.

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Future Directions for Robotic Endoscopy–Artificial Intelligence (AI), Three-Dimensional (3D) Imaging, and Natural Orifice Transluminal Endoscopic Surgery (NOTES)
Cem Simsek, Hung Leng Kaan, Hiroyuki Aihara
Techniques and Innovations in Gastrointestinal Endoscopy.2023; 25(1): 95. CrossRef
A three-dimensional measurement method for binocular endoscopes based on deep learning
Hao Yu, Changjiang Zhou, Wei Zhang, Liqiang Wang, Qing Yang, Bo Yuan
Frontiers of Information Technology & Electronic Engineering.2022; 23(4): 653. CrossRef

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The Efficacy of an Endoscopic Grasp-and-Traction Device for Gastric Endoscopic Submucosal Dissection: An Ex Vivo Comparative Study (with Video): Dirk W. Schölvinck, Osamu Goto, Jacques J. G. H. M. Bergman, Naohisa Yahagi, Bas L. A. M. Weusten; Clin Endosc 2015;48(3):221-227. Published online May 29, 2015; DOI: https://doi.org/10.5946/ce.2015.48.3.221

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Background/Aims

To investigate whether the EndoLifter (Olympus), a counter-traction device facilitating submucosal dissection, can accelerate endoscopic submucosal dissection (ESD).

Methods

Two endoscopists (novice/expert in ESD) performed 64 ESDs (artificial 3-cm lesions) in 16 ex vivo pig stomachs: per stomach, two at the posterior wall (forward approach) and two at the lesser curvature (retroflex approach). Per approach, one lesion was dissected with (EL+) and one without (EL-) the EndoLifter. The submucosal dissection time (SDT), corrected for specimen size, and the influence of ESD experience on EndoLifter usefulness were assessed.

Results

En bloc resection rate was 98.4%. In the forward approach, the median SDT was shorter with the EndoLifter (0.56 min/cm² vs. 0.91 min/cm²), although not significantly (p=0.09). The ESD-experienced endoscopist benefitted more from the EndoLifter (0.45 [EL+] min/cm² vs. 0.68 [EL-] min/cm², p=0.07) than the ESD-inexperienced endoscopist (0.77 [EL+] min/cm² vs. 1.01 [EL-] min/cm², p=0.48). In the retroflex approach, the median SDTs were 1.06 (EL+) and 0.48 (EL-) min/cm² (p=0.16). The EndoLifter did not shorten the SDT for the ESD-experienced endoscopist (0.68 [EL+] min/cm² vs. 0.68 [EL-] min/cm², p=0.78), whereas the ESD-inexperienced endoscopist seemed hindered (1.65 [EL+] min/cm² vs. 0.38 [EL-] min/cm², p=0.03).

Conclusions

In gastric ESD, the EndoLifter, in trend, shortens SDTs in the forward, but not in the retroflex approach. Given the low numbers in this study, a type II error cannot be excluded.

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Endoscopic Submucosal Dissection Facilitating Techniques Among Non-experts: A Systematic Literature Review
Kavel Visrodia, Akira Dobashi, Fateh Bazerbachi, John Poneros, Amrita Sethi
Digestive Diseases and Sciences.2023; 68(6): 2561. CrossRef
Endoscopic mucosal resection and endoscopic submucosal dissection with an external additional working channel (EMR+ and ESD+) are equivalent to using a double-channel endoscope: a systematic evaluation in a porcine ex vivo model
Richard F. Knoop, Ahmad Amanzada, Golo Petzold, Volker Ellenrieder, Michael Engelhardt, Albrecht Neesse, Sebastian C. B. Bremer, Steffen Kunsch
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Der Gastroenterologe.2022; 17(2): 109. CrossRef
Endoscopic submucosal dissection with an additional working channel (ESD+): a novel technique to improve procedure time and safety of ESD
Richard F. Knoop, Edris Wedi, Golo Petzold, Sebastian C. B. Bremer, Ahmad Amanzada, Volker Ellenrieder, Albrecht Neesse, Steffen Kunsch
Surgical Endoscopy.2021; 35(7): 3506. CrossRef
Endoscopic diagnosis and treatment of gastric dysplasia and early cancer: Current evidence and what the future may hold
Edward Young, Hamish Philpott, Rajvinder Singh
World Journal of Gastroenterology.2021; 27(31): 5126. CrossRef
Endoscopic submucosal dissection: an update on tools and accessories
Christopher Harlow, Arun Sivananthan, Lakshmana Ayaru, Kinesh Patel, Ara Darzi, Nisha Patel
Therapeutic Advances in Gastrointestinal Endoscopy.2020; 13: 263177452095722. CrossRef
Robot assisted tumor resection devices
Yutaka Saito, Kazuki Sumiyama, Philip Wai-yan CHIU
Expert Review of Medical Devices.2017; 14(8): 657. CrossRef
An update in the endoscopic management of gastric cancer
Samuel Han, Andrew Hsu, Wahid Y. Wassef
Current Opinion in Gastroenterology.2016; 32(6): 492. CrossRef
Is the Endoscopic Grasp-and-Traction Device Useful for Endoscopic Submucosal Dissection in Treating Early Gastric Cancer?
Joo Young Cho
Clinical Endoscopy.2015; 48(3): 181. CrossRef

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The "Two-Sword Fencing" Technique in Endoscopic Submucosal Dissection: Toshihiro Nishizawa, Toshio Uraoka, Yasutoshi Ochiai, Hidekazu Suzuki, Osamu Goto, Ai Fujimoto, Tadateru Maehata, Takanori Kanai, Naohisa Yahagi; Clin Endosc 2015;48(1):85-86. Published online January 31, 2015; DOI: https://doi.org/10.5946/ce.2015.48.1.85

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Clinical benefit of the multibending endoscope for gastric endoscopic submucosal dissection: a randomized controlled trial
Koichi Hamada, Yoshinori Horikawa, Yoshiki Shiwa, Kae Techigawara, Takayuki Nagahashi, Daizo Fukushima, Shinya Nishida, Ryota Koyanagi, Koichiro Kawano, Noriyuki Nishino, Michitaka Honda
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Long-Term Outcomes of Endoscopic Submucosal Dissection for Superficial Esophageal Squamous Cell Carcinoma
Toshihiro Nishizawa, Hidekazu Suzuki
Cancers.2020; 12(10): 2849. CrossRef
Usefulness of a multibending endoscope in gastric endoscopic submucosal dissection
Koichi Hamada, Yoshinori Horikawa, Ryota Koyanagi, Yoshiki Shiwa, Kae Techigawara, Shinya Nishida, Yujiro Nakayama, Michitaka Honda
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Is the Double Channel Gastroscope Useful in Endoscopic Mucosal Resection for Large Sessile Colon Polyps?
Kwang An Kwon
Clinical Endoscopy.2015; 48(2): 89. CrossRef

6,195 View
53 Download
4 Web of Science
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