Clinical 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

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

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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

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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

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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

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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.

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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

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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

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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.

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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
Application of ERCP Procedures in Choledocholithiasis with Duodenal Stenosis Patients
Yuyan Shi, Jinghon Zhong, Jianbo Zhou, Qifeng Song, Zhaoqi Dong
Evidence-Based Complementary and Alternative Medicine.2022; 2022: 1. CrossRef
Choledocholithiasis without cholecystolithiasis, after endoscopic retrograde cholangiopancreatography follow-up without cholecystectomy
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
Single-Stage Endoscopic Stone Extraction and Cholecystectomy during the Same Hospitalization: What is the Optimal Strategy for Patients with Choledocholithiasis and Cholelithiasis?
Tae Yoon Lee
Clinical Endoscopy.2019; 52(1): 5. CrossRef

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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

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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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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

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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.

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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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