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11 "Alan Kawarai Lefor"
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Case Report
Underwater Endoscopic Mucosal Resection without Submucosal Injection Facilitates En bloc Resection of Colon Adenomas Extending into a Diverticulum
Yoshikazu Hayashi, Masahiro Okada, Takaaki Morikawa, Tatsuma Nomura, Hisashi Fukuda, Takahito Takezawa, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2021;54(3):436-440.   Published online November 6, 2020
DOI: https://doi.org/10.5946/ce.2020.168
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Superficial colonic neoplasms sometimes extend into a diverticulum. Conventional endoscopic mucosal resection of these lesions is considered challenging because colonic diverticula do not have a muscularis propria and are deeply inverted. Even if the solution is carefully injected below the mucosa at the bottom of the diverticulum, the mucosa is rarely elevated from the diverticular orifice, and it is usually just narrowed. Although endoscopic submucosal dissection or full-thickness resection with an over-the-scope clip device enables the complete resection of these lesions, it is still challenging, time consuming and expensive. Underwater endoscopic mucosal resection without submucosal injection (UEMR) is an innovative technique enabling en bloc resection of superficial colon lesions. We report three patients with colon adenomas extending into a diverticulum treated with successful UEMR. UEMR enabled rapid and safe en bloc resection of colon lesions extending into a diverticulum.

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  • Underwater endoscopic mucosal resection for colorectal lesions: Can it be an “Underwater” revolution?
    Yoji Takeuchi, Satoki Shichijo, Noriya Uedo, Ryu Ishihara
    DEN Open.2022;[Epub]     CrossRef
  • 4,131 View
  • 119 Download
  • 1 Web of Science
  • 1 Crossref
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Brief Report
Linked Color Imaging Demonstrates Characteristic Findings in Semi-Pedunculated Gastric Adenocarcinoma in Helicobacter pylori-Negative Normal Mucosa
Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Mio Sakaguchi, Masato Tsunoda, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2021;54(1):136-138.   Published online August 21, 2020
DOI: https://doi.org/10.5946/ce.2020.059
PDFPubReaderePub

Citations

Citations to this article as recorded by  
  • The Diagnostic Performance of Linked Color Imaging Compared to White Light Imaging in Endoscopic Diagnosis of Helicobacter pylori Infection: A Systematic Review and Meta-Analysis
    Jae Gon Lee, In Kyung Yoo, Abdullah Ozgur Yeniova, Sang Pyo Lee
    Gut and Liver.2024; 18(3): 444.     CrossRef
  • Linked Color Imaging for Stomach
    Eiji Umegaki, Hiraku Misawa, Osamu Handa, Hiroshi Matsumoto, Akiko Shiotani
    Diagnostics.2023; 13(3): 467.     CrossRef
  • Role of linked color imaging for upper gastrointestinal disease: present and future
    Sang Pyo Lee
    Clinical Endoscopy.2023; 56(5): 546.     CrossRef
  • Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
    Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Yoshie Nomoto, Haruo Takahashi, Masato Tsunoda, Manabu Nagayama, Takashi Ueno, Alan Kawarai Lefor, Hironori Yamamoto
    Journal of Gastric Cancer.2021; 21(2): 142.     CrossRef
  • 3,814 View
  • 122 Download
  • 4 Web of Science
  • 4 Crossref
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Focused Review Series: Present and Future of Diagnosis and Management of Small Bowel Diseases Exploiting Artificial Intelligence and Advanced Endoscopy
Roles of Capsule Endoscopy and Balloon-Assisted Enteroscopy in the Optimal Management of Small Bowel Bleeding
Hani Abutalib, Tomonori Yano, Satoshi Shinozaki, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2020;53(4):402-409.   Published online July 30, 2020
DOI: https://doi.org/10.5946/ce.2020.143
AbstractAbstract PDFPubReaderePub
The small bowel had long been considered a dark unapproachable tunnel until the invention of capsule endoscopy and doubleballoon enteroscopy in the 21st century, which revolutionized the diagnosis and management of small bowel diseases, including bleeding. Various imaging modalities such as computed tomographic enterography, angiography, capsule endoscopy, and balloonassisted enteroscopy play vital roles in the diagnosis and management of small bowel bleeding. The choice of modality to use and timing of application differ according to the availability of the modalities, patient’s history, and physician’s experience. Small bowel bleeding is managed using different strategies as exemplified by medical treatment, interventional radiology, endoscopic therapy, or surgical intervention. Balloon-assisted enteroscopy enables endoscopic interventions to control small bowel bleeding, including electrocautery, argon plasma coagulation, clip application, and tattooing as a prelude to surgery. In this article, we clarify the recent approaches to the optimal diagnosis and management of patients with small bowel bleeding.

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  • A practical approach for small bowel bleeding
    Sung Eun Kim, Hyun Jin Kim, Myeongseok Koh, Min Cheol Kim, Joon Sung Kim, Ji Hyung Nam, Young Kwan Cho, A Reum Choe
    Clinical Endoscopy.2023; 56(3): 283.     CrossRef
  • Indication, Location of the Lesion, Diagnostic Yield, and Therapeutic Yield of Double-Balloon Enteroscopy: Seventeen Years of Experience
    Sang Pyo Lee, Hyun Joo Jang, Sea Hyub Kae, Jae Gon Lee, Ji Hye Kwon
    Diagnostics.2022; 12(9): 2224.     CrossRef
  • Application of capsule endoscopy in patients with chronic and recurrent abdominal pain
    Wei Yang, Zheng Li, Rui Liu, Xudong Tong, Wei Wang, Dongqiang Xu, Shan Gao
    Medical Engineering & Physics.2022; 110: 103901.     CrossRef
  • 5,240 View
  • 194 Download
  • 3 Web of Science
  • 3 Crossref
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Brief Report
Double-Balloon Endoscopy-Assisted Balloon Dilation of Strictures Secondary to Small-Intestinal Lymphoma
Shogo Magome, Hirotsugu Sakamoto, Satoshi Shinozaki, Masahiro Okada, Tomonori Yano, Keijiro Sunada, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2020;53(1):101-105.   Published online July 10, 2019
DOI: https://doi.org/10.5946/ce.2019.015
PDFSupplementary MaterialPubReaderePub

Citations

Citations to this article as recorded by  
  • Endoscopic Diagnosis of Small Bowel Tumor
    Tomonori Yano, Hironori Yamamoto
    Cancers.2024; 16(9): 1704.     CrossRef
  • Primary Gastrointestinal Follicular Lymphoma Presenting With Bowel Stenosis
    Hiroto Suzuki, Yasuhiko Hamada, Kyosuke Tanaka, Noriyuki Horiki, Hayato Nakagawa
    Cureus.2022;[Epub]     CrossRef
  • Small bowel lymphoma: clinical update and challenges for the gastroenterologist
    Priya Oka, Reena Sidhu
    Current Opinion in Gastroenterology.2022; 38(3): 270.     CrossRef
  • 4,562 View
  • 147 Download
  • 3 Web of Science
  • 3 Crossref
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Case Report
New Diagnostic Approach for Esophageal Squamous Cell Neoplasms Using Linked Color Imaging and Blue Laser Imaging Combined with Iodine Staining
Masato Tsunoda, Yoshimasa Miura, Hiroyuki Osawa, Tsevelnorov Khurelbaatar, Mio Sakaguchi, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2019;52(5):497-501.   Published online April 16, 2019
DOI: https://doi.org/10.5946/ce.2018.195
AbstractAbstract PDFPubReaderePub
A 62-year-old man with a flat early esophageal cancer was referred for endoscopic treatment. White light imaging revealed a pale red lesion, whereas linked color imaging (LCI) and blue laser imaging (BLI) yielded purple and brown images, respectively. Iodine staining demonstrated a large unstained area with a homogenous but very weak pink-color sign. This area appeared more clearly as purple and green on LCI and BLI, respectively; however, a different colored portion was observed at the 4 o’clock position inside the iodineunstained area. Histopathology findings of the resected specimen revealed squamous intraepithelial neoplasia at the 4 o’clock position and an esophageal squamous cell carcinoma in the remaining iodine-unstained area. LCI and BLI combined with iodine staining produce characteristic images that overcomes the pink-color sign, reflecting the histological features of a flat esophageal neoplasm. This new method is useful for detailed evaluation of early flat squamous cell neoplasms.

Citations

Citations to this article as recorded by  
  • Linked color imaging vs Lugol chromoendoscopy for esophageal squamous cell cancer and precancerous lesion screening: A noninferiority study
    Zi-Xin Wang, Long-Song Li, Song Su, Jin-Ping Li, Bo Zhang, Nan-Jun Wang, Sheng-Zhen Liu, Sha-Sha Wang, Shuai Zhang, Ya-Wei Bi, Fei Gao, Qun Shao, Ning Xu, Bo-Zong Shao, Yi Yao, Fang Liu, En-Qiang Linghu, Ning-Li Chai
    World Journal of Gastroenterology.2023; 29(12): 1899.     CrossRef
  • Usefulness of linked color imaging in the early detection of superficial esophageal squamous cell carcinomas
    Koki Nakamura, Yuji Urabe, Shiro Oka, Naoko Nagasaki, Naoki Yorita, Kosaku Hata, Kazuhiko Masuda, Mio Kurihara, Takahiro Kotachi, Tomoyuki Boda, Shinji Tanaka, Kazuaki Chayama
    Esophagus.2021; 18(1): 118.     CrossRef
  • Inter‐observer variability of experts and trainees for the diagnosis of reflux esophagitis: Comparison of linked color imaging, blue laser imaging, and white light imaging
    Sang Pyo Lee, Sea Hyub Kae, Hyun Joo Jang, Dong Hee Koh, Eun Suk Jung
    Journal of Digestive Diseases.2021; 22(7): 425.     CrossRef
  • 5,554 View
  • 155 Download
  • 3 Web of Science
  • 3 Crossref
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Focused Review Series: Endoscopic Submucosal Dissection for Colorectal Tumors
Advanced Treatment and Imaging in Colonoscopy: The Pocket-Creation Method for Complete Resection and Linked Color Imaging for Better Detection of Early Neoplastic Lesions by Colonoscopy
Hironori Yamamoto, Satoshi Shinozaki, Yoshikazu Hayashi, Yoshimasa Miura, Tsevelnorov Khurelbaatar, Hiroyuki Osawa, Alan Kawarai Lefor
Clin Endosc 2019;52(2):107-113.   Published online January 10, 2019
DOI: https://doi.org/10.5946/ce.2018.189
AbstractAbstract PDFPubReaderePub
Early detection and resection of neoplastic lesions are key objectives to diminish colorectal cancer mortality. Resection of superficial colorectal neoplasms, cold snare polypectomy, endoscopic mucosal resection, and endoscopic submucosal dissection have all been developed and used worldwide. The pocket-creation method facilitates the resection of tumors in difficult and routine locations. Early detection is the most important first step to maximize the benefits of recent advancements in endoscopic techniques. However, the detection of small, flat-shaped, or faded color lesions remains difficult. Linked color imaging, a novel multi-light technology, facilitates the recognition of minor differences in tissue by enhancing the color contrast between early colorectal neoplasms and surrounding normal mucosa in a bright field of view. The most striking feature of linked color imaging is its ability to display the color of early neoplastic lesions as distinct from inflammatory changes, both of which have similar “redness” when viewed using white light imaging. To increase the detection rate of neoplasms, linked color imaging should be used from the outset for endoscopic observation. Early detection of superficial colorectal tumors can result in decreased mortality from colorectal cancer and maintain a good quality of life for patients.

Citations

Citations to this article as recorded by  
  • Comparison of blue laser imaging and light‐emitting diode‐blue light imaging for the characterization of colorectal polyps using the Japan narrow‐band imaging expert team classification: The LASEREO and ELUXEO COLonoscopic study
    Masahiro Okada, Naohisa Yoshida, Hiroshi Kashida, Yoshikazu Hayashi, Satoshi Shinozaki, Shiori Yoshimoto, Toshihiro Fujinuma, Hirotsugu Sakamoto, Keijiro Sunada, Yuri Tomita, Osamu Dohi, Ken Inoue, Ryohei Hirose, Yoshito Itoh, Yoriaki Komeda, Ikue Sekai,
    DEN Open.2024;[Epub]     CrossRef
  • Linked color imaging versus white light imaging in the diagnosis of colorectal lesions: a meta-analysis of randomized controlled trials
    Yining Sun, Xiu-He Lv, Xian Zhang, Jin Wang, Huimin Wang, Jin-Lin Yang
    Therapeutic Advances in Gastroenterology.2023;[Epub]     CrossRef
  • The Pocket-Creation Method Facilitates Endoscopic Submucosal Dissection of Gastric Neoplasms Along the Lesser Curvature at the Gastric Angle
    Masafumi Kitamura, Yoshimasa Miura, Satoshi Shinozaki, Alan Kawarai Lefor, Hironori Yamamoto
    Frontiers in Medicine.2022;[Epub]     CrossRef
  • Development and validation of the linked color imaging classification for endoscopic prediction of colorectal polyp histology
    Min Min, Shou Bin Ning, Duan Min Hu, Yoshikazu Hayashi, Yan Liu
    Journal of Digestive Diseases.2022; 23(5-6): 310.     CrossRef
  • Combination of endoscopic submucosal dissection techniques, a practical solution for difficult cases
    Dong-Hoon Yang
    Clinical Endoscopy.2022; 55(5): 626.     CrossRef
  • Medical needs related to the endoscopic technology and colonoscopy for colorectal cancer diagnosis
    Juan Francisco Ortega-Morán, Águeda Azpeitia, Luisa F. Sánchez-Peralta, Luis Bote-Curiel, Blas Pagador, Virginia Cabezón, Cristina L. Saratxaga, Francisco M. Sánchez-Margallo
    BMC Cancer.2021;[Epub]     CrossRef
  • Comparison of long-term recurrence-free survival between primary surgery and endoscopic resection followed by secondary surgery in T1 colorectal cancer
    Eun Hye Oh, Nayoung Kim, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Byong Duk Ye, Seung-Jae Myung, Suk-Kyun Yang, Chang Sik Yu, Jin Cheon Kim, Jeong-Sik Byeon
    Gastrointestinal Endoscopy.2021; 94(2): 394.     CrossRef
  • The pocket-creation method facilitates gastric endoscopic submucosal dissection and overcomes challenging situations
    Masafumi Kitamura, Yoshimasa Miura, Satoshi Shinozaki, Hironori Yamamoto
    VideoGIE.2021; 6(9): 390.     CrossRef
  • Application of linked color imaging in the diagnosis of early gastrointestinal neoplasms and precancerous lesions: a review
    Shanshan Wang, Lei Shen, Hesheng Luo
    Therapeutic Advances in Gastroenterology.2021; 14: 175628482110259.     CrossRef
  • Colon polyp detection using linked color imaging compared to white light imaging: Systematic review and meta‐analysis
    Satoshi Shinozaki, Yasutoshi Kobayashi, Yoshikazu Hayashi, Hirotsugu Sakamoto, Keijiro Sunada, Alan Kawarai Lefor, Hironori Yamamoto
    Digestive Endoscopy.2020; 32(6): 874.     CrossRef
  • The Role of Cholangioscopy in the Management of Primary Sclerosing Cholangitis
    Aldo J. Montano-Loza, Maryam Ebadi, Gurpal Sandha
    Current Hepatology Reports.2020; 19(2): 78.     CrossRef
  • Linked color imaging for the detection of early gastrointestinal neoplasms
    Satoshi Shinozaki, Hiroyuki Osawa, Yoshikazu Hayashi, Alan Kawarai Lefor, Hironori Yamamoto
    Therapeutic Advances in Gastroenterology.2019; 12: 175628481988524.     CrossRef
  • 6,801 View
  • 218 Download
  • 10 Web of Science
  • 12 Crossref
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Focused Review Series: Current Status of Image-Enhanced Endoscopy (IEE)
Linked Color Imaging and Blue Laser Imaging for Upper Gastrointestinal Screening
Hiroyuki Osawa, Yoshimasa Miura, Takahito Takezawa, Yuji Ino, Tsevelnorov Khurelbaatar, Yuichi Sagara, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2018;51(6):513-526.   Published online November 2, 2018
DOI: https://doi.org/10.5946/ce.2018.132
AbstractAbstract PDFPubReaderePub
White light imaging (WLI) may not reveal early upper gastrointestinal cancers. Linked color imaging (LCI) produces bright images in the distant view and is performed for the same screening indications as WLI. LCI and blue laser imaging (BLI) provide excellent visibility of gastric cancers in high color contrast with respect to the surrounding tissue. The characteristic purple and green color of metaplasias on LCI and BLI, respectively, serve to increase the contrast while visualizing gastric cancers regardless of a history of Helicobacter pylori eradication.
LCI facilitates color-based recognition of early gastric cancers of all morphological types, including flat lesions or those in an H. pylori-negative normal background mucosa as well as the diagnosis of inflamed mucosae including erosions. LCI reveals changes in mucosal color before the appearance of morphological changes in various gastric lesions. BLI is superior to LCI in the detection of early esophageal cancers and abnormal findings of microstructure and microvasculature in close-up views of upper gastrointestinal cancers. Excellent images can also be obtained with transnasal endoscopy. Using a combination of these modalities allows one to obtain images useful for establishing a diagnosis. It is important to observe esophageal cancers (brown) using BLI and gastric cancers (orange) surrounded by intestinal metaplasia (purple) and duodenal cancers (orange) by LCI.

Citations

Citations to this article as recorded by  
  • Higher detectability of gastric cancer after Helicobacter pylori eradication in texture and color enhancement imaging mode 2 in screening endoscopy
    Yuichiro Kemmoto, Shun‐ichiro Ozawa, Ryota Sueki, Keiichi Furuya, Daimon Shirose, Satoshi Wakao, Kuniaki Shindo, Atsushi Nagata, Tadashi Sato
    DEN Open.2024;[Epub]     CrossRef
  • Simultaneous detection of Helicobacter pylori infection comparing between white light and image-enhanced endoscopy
    Boonyaorn Chatrangsun, Natsuda Aumpan, Bubpha Pornthisarn, Soonthorn Chonprasertsuk, Sith Siramolpiwat, Patommatat Bhanthumkomol, Pongjarat Nunanan, Navapan Issariyakulkarn, Varocha Mahachai, Yoshio Yamaoka, Ratha-korn Vilaichone
    BMC Gastroenterology.2024;[Epub]     CrossRef
  • Linked Color Imaging of Barrett’s Esophageal Adenocarcinoma: Effects on Visibility
    Masahiro Saito, Tomoyuki Koike, Yuki Ohara, Yohei Ogata, Takeshi Kanno, Xiaoyi Jin, Waku Hatta, Kaname Uno, Naoki Asano, Akira Imatani, Atsushi Masamune
    Gastroenterology Insights.2024; 15(1): 145.     CrossRef
  • A Case of Duodenal Adenocarcinoma Effectively Highlighted by Linked Color Imaging and Confirmed by Histopathology
    Kimitoshi Kubo, Xinhan Zhang, Ikko Tanaka, Noriko Kimura
    Cureus.2024;[Epub]     CrossRef
  • Surveillance esophagogastroduodenoscopy using linked color imaging and narrow‐band imaging: A multicenter randomized controlled trial
    Marina Kubo, Shoko Ono, Osamu Dohi, Hayato Fukui, Takuto Hikichi, Tsunetaka Kato, Momoko Tsuda, Mio Matsumoto, Sosuke Kato, Rieko Mukai, Nobuaki Yagi, Ryo Takagi, Naoya Sakamoto, Mototsugu Kato
    Journal of Gastroenterology and Hepatology.2024; 39(6): 1065.     CrossRef
  • The Diagnostic Performance of Linked Color Imaging Compared to White Light Imaging in Endoscopic Diagnosis of Helicobacter pylori Infection: A Systematic Review and Meta-Analysis
    Jae Gon Lee, In Kyung Yoo, Abdullah Ozgur Yeniova, Sang Pyo Lee
    Gut and Liver.2024; 18(3): 444.     CrossRef
  • Diagnostic performance of blue laser imaging for early detection of gastric cancer: A systematic review and meta-analysis
    Mohammed Rifat Shaik, Andrew Canakis, Nishat Anjum Shaik, Shivanand Bomman, Dushyant Singh Dahiya, Emily Gorman, Mohammad Bilal, Saurabh Chandan
    Indian Journal of Gastroenterology.2024;[Epub]     CrossRef
  • Cromoendoscopia virtual utilizando BLI en el diagnóstico endoscópico de esófago de Barrett neoplásico y no neoplásico
    Juan Carlos González
    Revista GEN.2024; 77(4): 140.     CrossRef
  • Primary tracheal schwannoma: Bronchoscopic management of a rare tracheal tumour
    Krizelle Acibal, Belgundi Preeti Vidyasagar, Harikishan Gonuguntla
    Respirology Case Reports.2024;[Epub]     CrossRef
  • Current status and future perspective of linked color imaging for gastric cancer screening: a literature review
    Kazuo Yashima, Takumi Onoyama, Hiroki Kurumi, Yohei Takeda, Akira Yoshida, Koichiro Kawaguchi, Naoyuki Yamaguchi, Hajime Isomoto
    Journal of Gastroenterology.2023; 58(1): 1.     CrossRef
  • Improvement of detection sensitivity of upper gastrointestinal epithelial neoplasia in linked color imaging based on data of eye tracking
    Masayuki Higashino, Shoko Ono, Shogo Matsumoto, Marina Kubo, Naohiro Yasuura, Shuhei Hayasaka, Ikko Tanaka, Yoshihiko Shimoda, Yusuke Nishimura, Masayoshi Ono, Keiko Yamamoto, Yuji Ono, Naoya Sakamoto
    Journal of Gastroenterology and Hepatology.2023; 38(5): 710.     CrossRef
  • Linked Color Imaging for Stomach
    Eiji Umegaki, Hiraku Misawa, Osamu Handa, Hiroshi Matsumoto, Akiko Shiotani
    Diagnostics.2023; 13(3): 467.     CrossRef
  • Impact of linked color imaging and blue laser imaging on the diagnosis of esophageal squamous cell carcinoma in iodine unstained areas
    Masato Tsunoda, Yoshimasa Miura, Hiroyuki Osawa, Manabu Nagayama, Yuka Kagaya, Yohei Funayama, Takuma Kobayashi, Mami Togashi, Hiroki Hayashi, Yuji Hiraoka, Yoshie Nomoto, Chihiro Iwashita, Yuji Ino, Haruo Takahashi, Hisashi Fukuda, Alan Kawarai Lefor, Hi
    The Kaohsiung Journal of Medical Sciences.2023; 39(5): 533.     CrossRef
  • Advances in Endoscopic Diagnosis of Early Gastric Cancer
    真 徐
    Advances in Clinical Medicine.2023; 13(04): 6577.     CrossRef
  • Helicobacter pylori Infection: Conventional and Molecular Strategies for Bacterial Diagnosis and Antibiotic Resistance Testing
    Reza Ranjbar, Amir Ebrahimi, Amirhossein Sahebkar
    Current Pharmaceutical Biotechnology.2023; 24(5): 647.     CrossRef
  • Linked color imaging versus conventional white light colonoscopy for the detection of colorectal polyps
    Jun Watanabe, Takeshi Kanno, Eiichi Kakehi, Kazuma Rifu, Takehiro Kagaya, Kazuhiko Kotani, Yuki Kataoka
    Cochrane Database of Systematic Reviews.2023;[Epub]     CrossRef
  • Role of linked color imaging for upper gastrointestinal disease: present and future
    Sang Pyo Lee
    Clinical Endoscopy.2023; 56(5): 546.     CrossRef
  • Landscape of Innovative Methods for Early Diagnosis of Gastric Cancer: A Systematic Review
    Alexandra Orășeanu, Mihaela Cristina Brisc, Octavian Adrian Maghiar, Horia Popa, Ciprian Mihai Brisc, Sabina Florina Șolea, Teodor Andrei Maghiar, Ciprian Brisc
    Diagnostics.2023; 13(24): 3608.     CrossRef
  • Diagnostic ability of linked color imaging in ultraslim endoscopy to identify neoplastic lesions in the upper gastrointestinal tract
    Ken Haruma, Mototsugu Kato, Kenro Kawada, Takahisa Murao, Shoko Ono, Mitsuhiko Suehiro, Shinichiro Hori, Fumisato Sasaki, Tomoyuki Koike, Shinji Kitamura, Osamu Dohi, Hiromitsu Kanzaki, Nobuaki Yagi, Keiichi Hashiguchi, Shiro Oka, Kazuhiro Katada, Ryo Shi
    Endoscopy International Open.2022; 10(01): E88.     CrossRef
  • Incidence of Infection among Subjects with Helicobacter pylori Seroconversion
    Young Jung Kim, Sun-Young Lee, Jeong Hwan Kim, In-Kyung Sung, Hyung Seok Park
    Clinical Endoscopy.2022; 55(1): 67.     CrossRef
  • Linked color imaging effectively detects the endoscopic atrophic border in transnasal endoscopy
    Yusuke Kawai, Mitsushige Sugimoto, Mariko Hamada, Eri Iwata, Ryota Niikura, Naoyoshi Nagata, Masakatsu Fukuzawa, Takao Itoi, Takashi Kawai
    Journal of Clinical Biochemistry and Nutrition.2022; 70(3): 290.     CrossRef
  • Linked color imaging improves identification of early gastric cancer lesions by expert and non-expert endoscopists
    Kiki Fockens, Jeroen de Groof, Joost van der Putten, Tsevelnorov Khurelbaatar, Hisashi Fukuda, Takahito Takezawa, Yoshimasa Miura, Hiroyuki Osawa, Hironori Yamamoto, Jacques Bergman
    Surgical Endoscopy.2022; 36(11): 8316.     CrossRef
  • Improved detection of early gastric cancer with linked color imaging using an ultrathin endoscope: a video-based analysis
    Tsevelnorov Khurelbaatar, Yoshimasa Miura, Hiroyuki Osawa, Yuji Ino, Takahito Takezawa, Chihiro Iwashita, Yoshie Nomoto, Masato Tsunoda, Takashi Ueno, Haruo Takahashi, Manabu Nagayama, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto
    Endoscopy International Open.2022; 10(05): E644.     CrossRef
  • Risk factors for early gastric cancer: focus on Helicobacter pylori gastritis
    Hee Seok Moon
    Journal of the Korean Medical Association.2022; 65(5): 259.     CrossRef
  • Diagnostic accuracy of linked colour imaging versus white light imaging for early gastric cancers: a prospective, multicentre, randomized controlled trial study
    Min Min, Xiaotian Sun, Jianying Bai, Qinsheng Zhang, Xiaocui Yang, Qiang Guo, Rong Wang, Bangmao Wang, Zhiwu Lv, Jie Pan, Chunmeng Jiang, Duanmin Hu, Bing Nong, Enqiang Linghu, Yan Liu
    Annals of Medicine.2022; 54(1): 3305.     CrossRef
  • Using texture and colour enhancement imaging to evaluate gastrointestinal diseases in clinical practice: a review
    Mitsushige Sugimoto, Yohei Koyama, Takao Itoi, Takashi Kawai
    Annals of Medicine.2022; 54(1): 3314.     CrossRef
  • Current Endoscopy Training in Korea and Future Aspects
    Young-Eun Joo
    The Korean Journal of Gastroenterology.2022; 80(5): 207.     CrossRef
  • A Method for Local Contrast Enhancement of Endoscopic Images Based on Color Tensor Transformation into a Matrix of Color Vectors’ Modules Using a Sliding Window
    Roumen Kountchev, Alexander Bekiarski, Rumen Mironov, Snezhana Pleshkova
    Symmetry.2022; 14(12): 2582.     CrossRef
  • A rare case of Helicobacter pylori-uninfected intramucosal poorly differentiated adenocarcinoma that occurred in the gastric fornix
    Yukinari Yoshida, Hiroaki Takahashi, Tomoyuki Ohuchi, Satoshi Okahara, Yoshifumi Ishii, Toshinao Takenouchi, Toshiyuki Kubo, Takefumi Kikuchi, Hiroaki Mita, Yasuyo Adachi, Norikazu Iwata, Masahiro Nakamura, Yasushi Adachi, Yasuo Kato, Takao Endo
    Clinical Journal of Gastroenterology.2021; 14(1): 63.     CrossRef
  • Detection of early stage gastric cancers in screening laser endoscopy using linked color imaging for patients with atrophic gastritis
    Minoru Yamaoka, Hiroyuki Imaeda, Kazuya Miyaguchi, Keigo Ashitani, Yoshikazu Tsuzuki, Hideki Ohgo, Hiromitsu Soma, Nobutaka Hirooka, Hidetomo Nakamoto
    Journal of Gastroenterology and Hepatology.2021; 36(6): 1642.     CrossRef
  • Linked Color Imaging Demonstrates Characteristic Findings in Semi-Pedunculated Gastric Adenocarcinoma in Helicobacter pylori-Negative Normal Mucosa
    Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Mio Sakaguchi, Masato Tsunoda, Alan Kawarai Lefor, Hironori Yamamoto
    Clinical Endoscopy.2021; 54(1): 136.     CrossRef
  • The role of computer-assisted systems for upper-endoscopy quality monitoring and assessment of gastric lesions
    Daniela Cornelia Lazăr, Mihaela Flavia Avram, Alexandra Corina Faur, Ioan Romoşan, Adrian Goldiş
    Gastroenterology Report.2021; 9(3): 185.     CrossRef
  • A prospective randomized tandem gastroscopy pilot study of linked color imaging versus white light imaging for detection of upper gastrointestinal lesions
    Clement Chun Ho Wu, Vikneswaran Namasivayam, James Weiquan Li, Chris JL Khor, Kwong Ming Fock, Ngai Moh Law, Lai Mun Wang, Tiing Leong Ang
    Journal of Gastroenterology and Hepatology.2021; 36(9): 2562.     CrossRef
  • What Is New in Helicobacter pylori Diagnosis. An Overview
    Maria Pina Dore, Giovanni Mario Pes
    Journal of Clinical Medicine.2021; 10(10): 2091.     CrossRef
  • Inter‐observer variability of experts and trainees for the diagnosis of reflux esophagitis: Comparison of linked color imaging, blue laser imaging, and white light imaging
    Sang Pyo Lee, Sea Hyub Kae, Hyun Joo Jang, Dong Hee Koh, Eun Suk Jung
    Journal of Digestive Diseases.2021; 22(7): 425.     CrossRef
  • Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
    Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Yoshie Nomoto, Haruo Takahashi, Masato Tsunoda, Manabu Nagayama, Takashi Ueno, Alan Kawarai Lefor, Hironori Yamamoto
    Journal of Gastric Cancer.2021; 21(2): 142.     CrossRef
  • Application of linked color imaging in the diagnosis of early gastrointestinal neoplasms and precancerous lesions: a review
    Shanshan Wang, Lei Shen, Hesheng Luo
    Therapeutic Advances in Gastroenterology.2021; 14: 175628482110259.     CrossRef
  • Association between abdominal symptoms and gastric body redness in Linked Color Imaging in patients without Helicobacter pylori infection
    Tsutomu Takeda, Daisuke Asaoka, Hisanori Utsunomiya, Shotaro Oki, Nobuyuki Suzuki, Daiki Abe, Atsushi Ikeda, Noboru Yatagai, Yoichi Akazawa, Kohei Matsumoto, Kumiko Ueda, Hiroya Ueyama, Kenshi Matsumoto, Mariko Hojo, Shuko Nojiri, Akihito Nagahara
    Progress of Digestive Endoscopy.2021; 98(1): 24.     CrossRef
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    Hang Yang, Bing Hu
    Diagnostics.2021; 11(8): 1305.     CrossRef
  • Clinical Applications of Linked Color Imaging and Blue Laser/Light Imaging in the Screening, Diagnosis, and Treatment of Superficial Colorectal Tumors
    Taku Sakamoto, Hourin Cho, Yutaka Saito
    Clinical Endoscopy.2021; 54(4): 488.     CrossRef
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    Wansik Lee
    Clinical Endoscopy.2021; 54(4): 477.     CrossRef
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    Masahiro Saito, Tomoyuki Koike, Yuki Ohara, Kenichiro Nakagawa, Takeshi Kanno, Xiaoyi Jin, Waku Hatta, Kaname Uno, Naoki Asano, Akira Imatani, Atsushi Masamune
    Internal Medicine.2021; 60(21): 3351.     CrossRef
  • Potential of automatic diagnosis system with linked color imaging for diagnosis of Helicobacter pylori infection
    Takeshi Yasuda, Tomoyuki Hiroyasu, Satoru Hiwa, Yuto Okada, Sadanari Hayashi, Yuki Nakahata, Yuriko Yasuda, Tatsushi Omatsu, Akihiro Obora, Takao Kojima, Hiroshi Ichikawa, Nobuaki Yagi
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    Yasuhiko Abe, Yu Sasaki, Takashi Kon, Yoshiyuki Ueno
    Internal Medicine.2020; 59(12): 1573.     CrossRef
  • Optical enhancement imaging versus acetic acid for detecting gastric intestinal metaplasia: A randomized, comparative trial
    Rui Ji, Jun Liu, Ming-Ming Zhang, Yue-Yue Li, Xiu-Li Zuo, Xiao Wang, Yan-Qing Li
    Digestive and Liver Disease.2020; 52(6): 651.     CrossRef
  • The Efficacy of Linked Color Imaging in the Endoscopic Diagnosis of Barrett’s Esophagus and Esophageal Adenocarcinoma
    Mamoru Tokunaga, Tomoaki Matsumura, Kentaro Ishikawa, Tatsuya Kaneko, Hirotaka Oura, Tsubasa Ishikawa, Ariki Nagashima, Wataru Shiratori, Kenichiro Okimoto, Naoki Akizue, Daisuke Maruoka, Yuki Ohta, Keiko Saito, Tomoo Nakagawa, Tetsuhiro Chiba, Makoto Ara
    Gastroenterology Research and Practice.2020; 2020: 1.     CrossRef
  • Linked color imaging can improve the visibility of superficial non-ampullary duodenal epithelial tumors
    Kenichiro Okimoto, Daisuke Maruoka, Tomoaki Matsumura, Mamoru Tokunaga, Tatsuya Kaneko, Hirotaka Oura, Naoki Akizue, Yuki Ohta, Keiko Saito, Makoto Arai, Jun Kato, Naoya Kato
    Scientific Reports.2020;[Epub]     CrossRef
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    Joon Sung Kim, Byung-Wook Kim
    The Korean Journal of Internal Medicine.2019; 34(2): 237.     CrossRef
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    Athanasios Makristathis, Alexander M. Hirschl, Francis Mégraud, Emilie Bessède
    Helicobacter.2019;[Epub]     CrossRef
  • New Diagnostic Approach for Esophageal Squamous Cell Neoplasms Using Linked Color Imaging and Blue Laser Imaging Combined with Iodine Staining
    Masato Tsunoda, Yoshimasa Miura, Hiroyuki Osawa, Tsevelnorov Khurelbaatar, Mio Sakaguchi, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto
    Clinical Endoscopy.2019; 52(5): 497.     CrossRef
  • Linked color imaging for the detection of early gastrointestinal neoplasms
    Satoshi Shinozaki, Hiroyuki Osawa, Yoshikazu Hayashi, Alan Kawarai Lefor, Hironori Yamamoto
    Therapeutic Advances in Gastroenterology.2019; 12: 175628481988524.     CrossRef
  • Linked Color Imaging Highlights Flat Early Gastric Cancer
    Kimitoshi Kubo, Noriko Kimura, Soichiro Matsuda, Momoko Tsuda, Mototsugu Kato
    Case Reports in Gastroenterology.2019; 13(3): 532.     CrossRef
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Original Article
Single-Stage Endoscopic Stone Extraction and Cholecystectomy during the Same Hospitalization
Toshiaki Terauchi, Hiroharu Shinozaki, Satoshi Shinozaki, Yuichi Sasakura, Masaru Kimata, Junji Furukawa, Alan Kawarai Lefor, Yoshiro Ogata, Kenji Kobayashi
Clin Endosc 2019;52(1):59-64.   Published online October 5, 2018
DOI: https://doi.org/10.5946/ce.2018.107
AbstractAbstract PDFPubReaderePub
Background
/Aims: The clinical impact of single-stage endoscopic stone extraction by endoscopic retrograde cholangiopancreatography (ERCP) and cholecystectomy during the same hospitalization remains elusive. This study aimed to determine the efficacy and safety of single-stage ERCP and cholecystectomy during the same hospitalization in patients with cholangitis.
Methods
We retrospectively reviewed the medical records of 166 patients who underwent ERCP for mild to moderate cholangitis due to choledocholithiasis secondary to cholecystolithiasis from 2012 to 2016.
Results
Complete stone extraction was accomplished in 92% of patients (152/166) at the first ERCP. Among 152 patients who underwent complete stone extraction, cholecystectomy was scheduled for 119 patients (78%). Cholecystectomy was performed during the same hospitalization in 89% of patients (106/119). We compared two groups of patients: those who underwent cholecystectomy during the same hospitalization (n=106) and those who underwent cholecystectomy during a subsequent hospitalization (n=13). In the delayed group, cholecystectomy was performed about three months after the first ERCP. There were no significant differences between the groups in terms of operative time, rate of postoperative complications, and interval from cholecystectomy to discharge.
Conclusions
Single-stage endoscopic stone extraction is recommended in patients with mild to moderate acute cholangitis due to choledocholithiasis. The combination of endoscopic stone extraction and cholecystectomy during the same hospitalization is safe and feasible.

Citations

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  • RECURRENT BILIARY EVENTS IN PATIENTS, WHO UNDERWENT ENDOSCOPIC LITHOEXTRACTION DUE TO OBSTRUCTIVE JAUNDICE
    S. V. Dolzhkovyi
    World of Medicine and Biology.2022; 18(79): 59.     CrossRef
  • Destiny for Rendezvous: Is Cholecysto/Choledocholithiasis Better Treated with Dual- or Single-Step Procedures?
    S. Vaccari, M. Minghetti, A. Lauro, M. I. Bellini, A. Ussia, S. Khouzam, I. R. Marino, M. Cervellera, V. D’Andrea, V. Tonini
    Digestive Diseases and Sciences.2022; 67(4): 1116.     CrossRef
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    Yuyan Shi, Jinghon Zhong, Jianbo Zhou, Qifeng Song, Zhaoqi Dong
    Evidence-Based Complementary and Alternative Medicine.2022; 2022: 1.     CrossRef
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    Bahtiyar MUHAMMEDOĞLU, Eyüp PİRCANOĞLU, Serkan TORUN
    Konuralp Tıp Dergisi.2021; 13(1): 68.     CrossRef
  • Comparison of the safety and efficacy of single-stage endoscopic retrograde cholangiopancreatography plus laparoscopic cholecystectomy versus two-stage ERCP followed by laparoscopic cholecystectomy six-to-eight weeks later: A randomized controlled trial
    Bahtiyar Muhammedoğlu, Ilhami Taner Kale
    International Journal of Surgery.2020; 76: 37.     CrossRef
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    Tae Yoon Lee
    Clinical Endoscopy.2019; 52(1): 5.     CrossRef
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Case Report
Blue Laser Imaging with a Small-Caliber Endoscope Facilitates Detection of Early Gastric Cancer
Haruo Takahashi, Yoshimasa Miura, Hiroyuki Osawa, Takahito Takezawa, Yuji Ino, Masahiro Okada, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2019;52(3):273-277.   Published online August 14, 2018
DOI: https://doi.org/10.5946/ce.2018.100
AbstractAbstract PDFPubReaderePub
Conventional endoscopy often misses early gastric cancers with minimal red discoloration because they cannot be distinguished from inflamed mucosa. We treated a patient with a small early gastric cancer that was difficult to diagnose using conventional endoscopy. Conventional endoscopy using a small-caliber endoscope showed only subtle red discoloration of the gastric mucosa. However, blue laser imaging showed a clearly discolored area measuring 10 mm in diameter around the red lesion, which was distinct from the surrounding inflamed mucosa. Irregular vessels on the tumor surface (suspicious for early gastric cancer) were observed even with small-caliber endoscopy. Biopsy revealed a well-moderately differentiated tubular adenocarcinoma, and endoscopic submucosal dissection was performed. Histopathological examination of the specimen confirmed well-moderately differentiated adenocarcinoma localized to the mucosa with slight depression compared to the surrounding mucosa, consistent with the endoscopic findings. This small early gastric cancer became clearly visible with blue laser imaging using small-caliber endoscopy.

Citations

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  • Diagnostic performance of blue laser imaging for early detection of gastric cancer: A systematic review and meta-analysis
    Mohammed Rifat Shaik, Andrew Canakis, Nishat Anjum Shaik, Shivanand Bomman, Dushyant Singh Dahiya, Emily Gorman, Mohammad Bilal, Saurabh Chandan
    Indian Journal of Gastroenterology.2024;[Epub]     CrossRef
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    Tsevelnorov Khurelbaatar, Yoshimasa Miura, Hiroyuki Osawa, Yuji Ino, Takahito Takezawa, Chihiro Iwashita, Yoshie Nomoto, Masato Tsunoda, Takashi Ueno, Haruo Takahashi, Manabu Nagayama, Hisashi Fukuda, Alan Kawarai Lefor, Hironori Yamamoto
    Endoscopy International Open.2022; 10(05): E644.     CrossRef
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    Young-Il Kim, Il Ju Choi
    Journal of the Korean Medical Association.2022; 65(5): 250.     CrossRef
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    Young-Il Kim, Il Ju Choi
    Journal of Gastric Cancer.2022; 22(3): 169.     CrossRef
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    Kohei Oka, Naoto Iwai, Takashi Okuda, Tasuku Hara, Yutaka Inada, Toshifumi Tsuji, Toshiyuki Komaki, Junichi Sakagami, Yuji Naito, Keizo Kagawa, Yoshito Itoh, Fabiana Zingone
    Gastroenterology Research and Practice.2021; 2021: 1.     CrossRef
  • Appropriate Color Enhancement Settings for Blue Laser Imaging Facilitates the Diagnosis of Early Gastric Cancer with High Color Contrast
    Yuji Hiraoka, Yoshimasa Miura, Hiroyuki Osawa, Yoshie Nomoto, Haruo Takahashi, Masato Tsunoda, Manabu Nagayama, Takashi Ueno, Alan Kawarai Lefor, Hironori Yamamoto
    Journal of Gastric Cancer.2021; 21(2): 142.     CrossRef
  • Linked Color Imaging and Blue Laser Imaging for Upper Gastrointestinal Screening
    Hiroyuki Osawa, Yoshimasa Miura, Takahito Takezawa, Yuji Ino, Tsevelnorov Khurelbaatar, Yuichi Sagara, Alan Kawarai Lefor, Hironori Yamamoto
    Clinical Endoscopy.2018; 51(6): 513.     CrossRef
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Erratum
An Ultrathin Endoscope with a 2.4-mm Working Channel Shortens the Esophagogastroduodenoscopy Time by Shortening the Suction Time
Satoshi Shinozaki, Yoshimasa Miura, Yuji Ino, Kenjiro Shinozaki, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2016;49(1):100-100.   Published online January 28, 2016
DOI: https://doi.org/10.5946/ce.2016.49.1.100
Corrects: Clin Endosc 2015;48(6):516
PDFPubReaderePub

Citations

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  • Animal experimental studies using small intestine endoscope
    Jin-Hua Liu, Dan-Yang Liu, Li Wang, Li-Ping Han, Zhe-Yu Qi, Hai-Jun Ren, Yan Feng, Feng-Ming Luan, Liang-Tian Mi, Shu-Mei Shan
    World Journal of Gastroenterology.2017; 23(20): 3684.     CrossRef
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  • 52 Download
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Original Article
An Ultrathin Endoscope with a 2.4-mm Working Channel Shortens the Esophagogastroduodenoscopy Time by Shortening the Suction Time
Satoshi Shinozaki, Yoshimasa Miura, Yuji Ino, Kenjiro Shinozaki, Alan Kawarai Lefor, Hironori Yamamoto
Clin Endosc 2015;48(6):516-521.   Published online November 30, 2015
DOI: https://doi.org/10.5946/ce.2015.48.6.516
Correction in: Clin Endosc 2016;49(1):100
AbstractAbstract PDFPubReaderePub
Background
/Aims: Poor suction ability through a narrow working channel prolongs esophagogastroduodenoscopy (EGD). The aim of this study was to evaluate suction with a new ultrathin endoscope (EG-580NW2; Fujifilm Corp.) having a 2.4-mm working channel in clinical practice.
Methods
To evaluate in vitro suction, 200 mL water was suctioned and the suction time was measured. The clinical data of 117 patients who underwent EGD were retrospectively reviewed on the basis of recorded video, and the suction time was measured by using a stopwatch.
Results
In vitro, the suction time with the EG-580NW2 endoscope was significantly shorter than that with the use of an ultrathin endoscope with a 2.0-mm working channel (EG-580NW; mean ± standard deviation, 22.7±1.1 seconds vs. 34.7±2.2 seconds; p<0.001). We analyzed the total time and the suction time for routine EGD in 117 patients (50 in the EG-580NW2 group and 67 in the EG-580NW group). In the EG-580NW2 group, the total time for EGD was significantly shorter than that in the EG-580NW group (275.3±42.0 seconds vs. 300.6±46.5 seconds, p=0.003). In the EG-580NW2 group, the suction time was significantly shorter than that in the EG-580NW group (19.2±7.6 seconds vs. 38.0±15.9 seconds, p<0.001).
Conclusions
An ultrathin endoscope with a 2.4-mm working channel considerably shortens the routine EGD time by shortening the suction time, in comparison with an endoscope with a 2.0-mm working channel.

Citations

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  • Optical spectroscopy for in vivo medical diagnosis—a review of the state of the art and future perspectives
    Jang Ah Kim, Dominic J Wales, Guang-Zhong Yang
    Progress in Biomedical Engineering.2020; 2(4): 042001.     CrossRef
  • Necessity of transnasal gastroscopy in routine diagnostics: a patient-centred requirement analysis
    Anna-Livia Schuldt, Holger Kirsten, Jan Tuennemann, Mario Heindl, Florian van Bommel, Juergen Feisthammel, Marcus Hollenbach, Albrecht Hoffmeister
    BMJ Open Gastroenterology.2019; 6(1): e000264.     CrossRef
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  • 57 Download
  • 3 Web of Science
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