Clinical Endoscopy

Review

Colon stenting as a bridge to surgery in obstructive colorectal cancer management: Dong Hyun Kim, Han Hee Lee; Clin Endosc 2024;57(4):424-433. Published online March 8, 2024; DOI: https://doi.org/10.5946/ce.2023.138

Colonic stent placement is a commonly used bridging strategy for surgery in patients with obstructive colorectal cancer. The procedure involves the placement of a self-expandable metallic stent (SEMS) across the obstructive lesion to restore intestinal patency and alleviate the symptoms of obstruction. By allowing patients to receive surgery in a planned and staged manner with time for preoperative optimization and bowel preparation, stent placement may reduce the need for emergency surgery, which is associated with higher complication rates and poorer outcomes. This review focuses on the role of colon stenting as a bridge to surgery in the management of obstructive colorectal cancer. SEMS as a bridge to surgery for left-sided colon cancer has been demonstrated to be particularly useful; however, further research is needed for its application in cases of right-sided colon cancer. Colon stent placement also has limitations and potential complications including stent migration, re-obstruction, and perforation. However, the timing of curative surgery after SEMS placement remains inconclusive. Considering the literature to date, performing surgery at an interval of approximately 2 weeks is considered appropriate. Therefore, colonic stent placement may be an effective strategy as a bridge to surgery in patients with obstructive colorectal cancer.

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Chitosan Approaches in Colon Cancer Therapy: Understanding its Macromolecular Interactions and Structure-Property Relationships
Sankha Bhattacharya, Dilpreet Singh
Journal of Macromolecular Science, Part B.2025; : 1. CrossRef
Development of colonic stent simulator using three-dimensional printing technique: a simulator development study in Korea
Hyundam Gu, Suyoung Lee, Sol Kim, Hye-Lim Jang, Da-Woon Choi, Kyu Seok Kim, Yu Ri Shin, Dae Young Cheung, Bo-In Lee, Jin Il Kim, Han Hee Lee
Clinical Endoscopy.2024; 57(6): 790. CrossRef
Self-Expandable Metal Stents for Obstructing Colon Cancer and Extracolonic Cancer: A Review of Latest Evidence
Pedro Marílio Cardoso, Eduardo Rodrigues-Pinto
Cancers.2024; 17(1): 87. CrossRef

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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

Abstract PDF Supplementary Material PubReader ePub

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

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Original Articles

Colon Capsule Endoscopy: Indications, Findings, and Complications – Data from a Prospective German Colon Capsule Registry Trial (DEKOR): Johannes Hausmann, Andrea Tal, Artur Gomer, Michael Philipper, Gero Moog, Horst Hohn, Norbert Hesselbarth, Harald Plass, Jörg Albert, Fabian Finkelmeier; Clin Endosc 2021;54(1):92-99. Published online June 18, 2020; DOI: https://doi.org/10.5946/ce.2020.049

Abstract PDF PubReader ePub

Background
/Aims: Reliable and especially widely accepted preventive measures are crucial to further reduce the incidence of colorectal cancer (CRC). Colon capsule endoscopy (CCE) might increase the screening numbers among patients unable or unwilling to undergo conventional colonoscopy. This registry trial aimed to document and determine the CCE indications, findings, complications, and adverse events in outpatient practices and clinics throughout Germany.
Methods
Patients undergoing CCE between 2010 and 2015 were enrolled in this prospective multicenter registry trial at six German centers. Patient demographics, outcomes, and complications were evaluated.
Results
A total of 161 patients were included. Of the CCE evaluations, 111 (68.9%) were considered successful. Pathological findings in the colon (n=92, 60.1%) and in the remaining gastrointestinal tract (n=38, 24.8%) were recorded. The main finding was the presence of polyps (n=52, 32.3%). Furthermore, five carcinomas (3.1%) were detected and histologically confirmed later. Adequate bowel cleanliness was more likely to be achieved in the outpatient setting (p<0.0001). Interestingly, 85 patients (55.6%) chose to undergo CCE based on personal motivation.
Conclusions
CCE seems to be a reliable and safe endoscopic tool for screening for CRC and detecting other diseases. Its patient acceptance and feasibility seems to be high, especially in the outpatient setting.

Citations

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The ScotCap registry: An evaluation of 1000 colon capsule endoscopy procedures carried out in Scotland
C. MacLeod, N. Rajapaksha, C. Brown, J. Hudson, Z. Asif, A. J. M. Watson
Colorectal Disease.2025;[Epub] CrossRef
Nationwide multicenter prospective study on the usefulness, safety, and acceptability of colon capsule endoscopy in Japan
Naoki Hotta, Naoki Ohmiya, Hiroto Hiraga, Konosuke Nakaji, Satoshi Osawa, Takafumi Omori, Shoji Mitsufuji, Naoki Hosoe, Sadaharu Nouda, Taku Kobayashi, Masanao Nakamura, Shiro Oka, Koji Nonogaki, Yukiko Baba, Rieko Mukai, Hiroshi Matsumoto, Yuichiro Ikebu
Gastrointestinal Endoscopy.2024;[Epub] CrossRef
Advances in colon capsule endoscopy: a review of current applications and challenges
E. Gibbons, O. B. Kelly, B. Hall
Frontiers in Gastroenterology.2023;[Epub] CrossRef
Computer-Aided Diagnosis of Gastrointestinal Protruded Lesions Using Wireless Capsule Endoscopy: A Systematic Review and Diagnostic Test Accuracy Meta-Analysis
Hye Jin Kim, Eun Jeong Gong, Chang Seok Bang, Jae Jun Lee, Ki Tae Suk, Gwang Ho Baik
Journal of Personalized Medicine.2022; 12(4): 644. CrossRef
Colon Capsule Endoscopy in the Diagnosis of Colon Polyps: Who Needs a Colonoscopy?
Apostolos Koffas, Apostolis Papaefthymiou, Faidon-Marios Laskaratos, Andreas Kapsoritakis, Owen Epstein
Diagnostics.2022; 12(9): 2093. CrossRef
The Effectiveness of a Very Low-Volume Compared to High-Volume Laxative in Colon Capsule Endoscopy
Benedicte Schelde-Olesen, Artur Nemeth, Gabriele Wurm Johansson, Ulrik Deding, Thomas Bjørsum-Meyer, Henrik Thorlacius, Gunnar Baatrup, Anastasios Koulaouzidis, Ervin Toth
Diagnostics.2022; 13(1): 18. CrossRef
Colon Capsule Endoscopy: An Alternative for Conventional Colonoscopy?
Britt B.S.L. Houwen, Evelien Dekker
Clinical Endoscopy.2021; 54(1): 4. CrossRef
Examination of Entire Gastrointestinal Tract: A Perspective of Mouth to Anus (M2A) Capsule Endoscopy
Ji Hyung Nam, Kwang Hoon Lee, Yun Jeong Lim
Diagnostics.2021; 11(8): 1367. CrossRef

6,823 View
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8 Crossref

Endoscopic Findings in Patients Under the Age of 40 Years with Hematochezia in Singapore: Man Hon Tang, Fung Joon Foo, Chee Yung Ng; Clin Endosc 2020;53(4):466-470. Published online June 18, 2020; DOI: https://doi.org/10.5946/ce.2019.029

Abstract PDF PubReader ePub

Background
/Aims: Sigmoidoscopy is performed in most medical centers to evaluate the distal colons of young adults presenting with hematochezia who are at risk of developing proximal lesions. Colonoscopies offer more complete evaluations but are associated with a higher incidence of complications and possible low yield.
Methods
An analysis was conducted on colonoscopies performed in our center on patients 40 years of age or younger. The study population was sub-divided into 2 age groups for analysis: <30 years of age and 30–39 years of age.
Results
We recruited 453 patients for the study. Patients were 115 and 338 individuals that were <30 and 30–39 years of age, respectively. Hemorrhoids was identified as the cause of bleeding in the majority of cases. The overall incidence of polyps was 6.5%; this was significantly higher in the 30–39 age group (7.4% vs. 1.7%, p=0.026). There were two cases of advanced/malignant polyps. While the majority of the polyps were in the distal colon, 28% of the polyps in the older age group were found in the proximal colon. There was one case of colonic perforation.
Conclusions
Colonic polyps are more prevalent in patients aged 30–39. Colonoscopies should be considered for patients over the age of 30 with rectal bleeding.

Citations

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The Italian Unitary Society of Colon-Proctology (Società Italiana Unitaria di Colonproctologia) guidelines for the management of acute and chronic hemorrhoidal disease
Antonio Brillantino, Adolfo Renzi, Pasquale Talento, Luigi Brusciano, Luigi Marano, Maurizio Grillo, Mauro Natale Maglio, Fabrizio Foroni, Alessio Palumbo, Maria Laura Sandoval Sotelo, Luciano Vicenzo, Michele Lanza, Giovanna Frezza, Massimo Antropoli, Cl
Annals of Coloproctology.2024; 40(4): 287. CrossRef
The Value of Colonoscopy in Assessing Rectal Bleeding in Patients Referred From Outpatient Care Units in Erbil, Iraq
Rawand Haweizy, Farman N Qader
Cureus.2024;[Epub] CrossRef
Evaluating the necessity of colonoscopy in patients under 40 with rectal bleeding: insights from a large-scale retrospective analysis
Ibrahim M. Obeidat, Yousef Yahia, Prem Chandra, Amani Altaiam, Ethar Mohamed, Husam Saffo, Raya Abualsuod, Ala’a Al-deen Mousa, Duha Shalatouni, Khaled Alsa’ed, Mahmoud Y. Arabyat
International Journal of Colorectal Disease.2024;[Epub] CrossRef
Comparing efficacy and factors of postoperative bleeding in endoscopic mucosal resection vs coagulation for intestinal polyps
Zhiang Li, Fei Yu, Chaoqian Wang, Zhang Du
Medicine.2023; 102(37): e34941. CrossRef
The role of colonoscopy in young patients with rectal bleeding: a systematic review and meta-analysis
Tuane Colles, Patrícia K. Ziegelmann, Daniel C. Damin
International Journal of Colorectal Disease.2023;[Epub] CrossRef
Usefulness of Colonoscopy in Patients with Hematochezia Aged under 40 Years
Hee Chan Yang, Sang Wook Kim
Clinical Endoscopy.2020; 53(4): 385. CrossRef

4,864 View
94 Download
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6 Crossref

Case Reports

Pyogenic Liver Abscess Caused by Endoscopic Submucosal Dissection for Early Colon Cancer: Joon Seop Lee, Yong Hwan Kwon; Clin Endosc 2019;52(6):620-623. Published online July 30, 2019; DOI: https://doi.org/10.5946/ce.2018.185

Abstract PDF PubReader ePub: Endoscopic submucosal dissection (ESD) is widely used for the treatment of colorectal neoplasia in patients who are candidates for endoscopic resection. In particular, pyogenic liver abscess (PLA), although rare, can occur. To our knowledge, there are no reports of PLA cases after ESD. Therefore, we report a rare case of PLA caused by ESD. A 76-year-old man was referred from a local clinic and admitted to our hospital for colonic ESD for a large polypoid mass. During colonoscopy, a 5-cm mass was seen in the cecum. ESD was performed. Four days after the procedure, he complained of myalgia and abdominal discomfort. Computed tomography revealed a 5.4- cm PLA in the medial segments of the liver. He was treated with antibiotics, and a percutaneous drainage catheter was inserted. Here, we report a very rare complication (PLA) after ESD. In conclusion, comprehensive awareness of the development of PLA is needed in ESD cases.

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Ascending Colon Cancer with Pathologically Confirmed Tumor Thrombosis of Superior Mesenteric Vein: A Case Report: Sung Eun Kim, Sang Jin Lee, Jun Young Cha, Sang Won Yi, Tae Sun Kim, Il Leon Cho, Jae Young Kwak, Kwang Hoon Oh; Clin Endosc 2019;52(5):506-509. Published online April 17, 2019; DOI: https://doi.org/10.5946/ce.2018.135

Abstract PDF PubReader ePub

Colon cancer is very rarely accompanied by tumor thrombosis of the superior mesenteric vein (SMV). A 46-year-old patient had been diagnosed with SMV tumor thrombosis related to colon cancer without hepatic metastasis and underwent right hemicolectomy with SMV tumor thrombectomy. Tumor thrombosis was pathologically confirmed as metastatic colon cancer. There has been no recurrence for 12 months with 12 cycles of adjuvant-chemotherapy.

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Superior mesenteric vein tumour thrombus in a patient with caecal adenocarcinoma: a rare and important finding
Janki Trivedi, Heinrich Bouwer, Tom Sutherland
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Isolated Malignant Portal Vein Thrombus in Colon Carcinoma: A Rare Finding on 18F-FDG PET/CECT
Tarun Kumar Jain, Ajay Yadav, Hemant Malhotra, Nitin Khunteta, Guman Singh
Journal of Nuclear Medicine Technology.2021; 49(2): 190. CrossRef
Ascending colon cancer accompanied by tumor thrombosis in the superior mesenteric vein: A case report
Yoshiaki Fujii, Kenji Kobayashi, Sho Kimura, Shuhei Uehara, Shuji Takiguchi
International Journal of Surgery Case Reports.2020; 73: 239. CrossRef
Treatment of tumor thrombus in the superior mesenteric vein due to advanced colon cancer with complete surgical resection and chemotherapy: a case report
Yoshitsugu Yanagida, Takahiro Amano, Ryuji Akai, Akira Toyoshima, Jotaro Kobayashi, Takuya Hashimoto, Eiji Sunami, Toshio Kumasaka, Shin Sasaki
Surgical Case Reports.2020;[Epub] CrossRef

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Review

Quality is the Key for Emerging Issues of Population-Based Colonoscopy Screening: Jin Young Yoon, Jae Myung Cha, Yoon Tae Jeen, on behalf of Medical Policy Committee of Korean Association for the Study of Intestinal Diseases (KASID), Quality Improvement Committee of Korean Society of Gastrointestinal Endoscopy (KSGE); Clin Endosc 2018;51(1):50-55. Published online January 31, 2018; DOI: https://doi.org/10.5946/ce.2018.010

Abstract PDF PubReader ePub

Colonoscopy is currently regarded as the gold standard and preferred method of screening for colorectal cancer (CRC). However, the benefit of colonoscopy screening may be blunted by low participation rates in population-based screening programs. Harmful effects of population-based colonoscopy screening may include complications induced by colonoscopy itself and by sedation, psychosocial distress, potential over-diagnosis, and socioeconomic burden. In addition, harmful effects of colonoscopy may increase with age and comorbidities. As the risk of adverse events in population-based colonoscopy screening may offset the benefit, the adverse events should be managed and monitored. To adopt population-based colonoscopy screening, consensus on the risks and benefits should be developed, focusing on potential harm, patient preference, socioeconomic considerations, and quality improvement of colonoscopy, as well as efficacy for CRC prevention. As suboptimal colonoscopy quality is a major pitfall of population-based screening, adequate training and regulation of screening colonoscopists should be the first step in minimizing variations in quality. Gastroenterologists should promote quality improvement, auditing, and training for colonoscopy in a population-based screening program.

Citations

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Strategies to improve screening colonoscopy quality for the prevention of colorectal cancer
Joo Hye Song, Eun Ran Kim
The Korean Journal of Internal Medicine.2024; 39(4): 547. CrossRef
Association between Endoscopist Volume and Interval Cancers after Colonoscopy: Results from the National Colorectal Cancer Screening Program in Korea
Dong Jun Kim, Nan-He Yoon, Jae Kwan Jun, Mina Suh, Sunhwa Lee, Seongju Kim, Ji Eun Kim, Hooyeon Lee
Cancer Research and Treatment.2024; 56(4): 1164. CrossRef
The Influence of Face Shields on the Quality of Colonoscopy in the Era of the COVID-19 Pandemic
Jin Wook Lee, Hyo Jeong Lee, Dae Sung Kim, Jiyoung Yoon, Seung Wook Hong, Ha Won Hwang, Jong-Soo Lee, Gwang-Un Kim, Sinwon Lee, Jaewon Choe, Jin Hwa Park, Dong-Hoon Yang, Jeong-Sik Byeon
Gut and Liver.2022; 16(3): 404. CrossRef
Optimal Timing of Simethicone Supplement for Bowel Preparation: A Prospective Randomized Controlled Trial
Zhen-wen Wu, Sheng-gang Zhan, Mei-feng Yang, Yi-teng Meng, Feng Xiong, Cheng Wei, Ying-xue Li, Ding-guo Zhang, Zheng-lei Xu, Ben-hua Wu, Rui-yue Shi, Jun Yao, Li-sheng Wang, De-feng Li, Cyriac Abby Philips
Canadian Journal of Gastroenterology and Hepatology.2021; 2021: 1. CrossRef
Efficacy and Patient Tolerability Profiles of Probiotic Solution with Bisacodyl Versus Conventional Cleansing Solution for Bowel Preparation: A Prospective, Randomized, Controlled Trial
Youn I Choi, Jong-Joon Lee, Jun-Won Chung, Kyoung Oh Kim, Yoon Jae Kim, Jung Ho Kim, Dong Kyun Park, Kwang An Kwon
Journal of Clinical Medicine.2020; 9(10): 3286. CrossRef

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Original Article

The Impact of Patient Education with a Smartphone Application on the Quality of Bowel Preparation for Screening Colonoscopy: JeongHyeon Cho, SeungHee Lee, Jung A Shin, Jeong Ho Kim, Hong Sub Lee; Clin Endosc 2017;50(5):479-485. Published online July 3, 2017; DOI: https://doi.org/10.5946/ce.2017.025

Abstract PDF PubReader ePub

Background
/Aims: Few studies have evaluated the use of a smartphone application (app) for educating people undergoing colonoscopy and optimizing bowel preparation. Therefore, this study was designed to develop a smartphone app for people to use as a preparation guide and to evaluate the efficacy of this app when used prior to colonoscopy.
Methods
In total, 142 patients (male:female=84:58, mean age=43.5±9.3 years), who were scheduled to undergo a colonoscopy at Myongji Hospital, were enrolled in this study. Seventy-one patients were asked to use a smartphone app that we had recently developed to prepare for the colonoscopy, while the 71 patients of the sex and age-matched control group were educated via written and verbal instructions.
Results
The quality of bowel cleansing, evaluated using the Boston Bowel Preparation Scale (BBPS), was significantly higher in the smartphone app group than in the control group (7.70±1.1 vs. 7.24±0.8, respectively, p=0.007 by t-test). No significant differences were found between the two groups regarding work-up time and the number of patients with polyps.
Conclusions
In this study, targeting young adults (≤50 years), the bowel preparation achieved by patients using the smartphone app showed significantly better quality than that of the control group.

Citations

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Evaluation of the effect of reinforced education on the satisfaction of patients undergoing colonoscopy: A randomized controlled trial
Negin Farid, Shakila Sharifian, Raziyeh Ghafouri, Antonio Brillantino
PLOS ONE.2024; 19(1): e0296126. CrossRef
Smartphone Application Versus Standard Instruction for Colonoscopic Preparation
Sunil V. Patel, David Yu, Connie Taylor, Jackie McKay, Lawrence Hookey
Journal of Clinical Gastroenterology.2024; 58(10): 1028. CrossRef
A smartphone application to enhance bowel preparation for first-time colonoscopy: a randomized controlled study
Tanawat Pattarapuntakul, Thanyaporn Kanchanasuwan, Apichat Kaewdech, Thanawin Wong, Nisa Netinatsunton, Nalerdon Chalermsuksant, Pimsiri Sripongpun
Frontiers in Medicine.2024;[Epub] CrossRef
Smartphone application for artificial intelligence‐based evaluation of stool state during bowel preparation before colonoscopy
Atsushi Inaba, Kensuke Shinmura, Hiroki Matsuzaki, Nobuyoshi Takeshita, Masashi Wakabayashi, Hironori Sunakawa, Keiichiro Nakajo, Tatsuro Murano, Tomohiro Kadota, Hiroaki Ikematsu, Tomonori Yano
Digestive Endoscopy.2024;[Epub] CrossRef
A novel strategy for improving bowel preparation based on social software‐enhanced education: A prospective, multicenter, randomized controlled study
Xin Yang, Yufeng Xiao, Zhifeng Zhao, Shuang Yu, En Liu, Xiao Xiao, Shoubin Ning, Suyun Zheng, Yanan Gong, Lei Zhou, Weijia Liu, Hui Lin, Rui Ji, Heng Zhang, Jianying Bai, Shiming Yang
Journal of Gastroenterology and Hepatology.2024; 39(10): 2143. CrossRef
The impact of smartphone applications on bowel preparation, compliance with appointments, cost-effectiveness, and patients’ quality of life for the colonoscopy process: A scoping review
Feyzullah Aksan, Lokman H. Tanriverdi, Carlos Jose Figueredo, Layla C. Barrera, Alia Hasham, Sunit P. Jariwala
Saudi Journal of Gastroenterology.2023; 29(2): 71. CrossRef
Impact of Patient Education via WeChat on Bowel Preparation for Colonoscopy
Peng Li, Xueqian He, Sufeng Chen
CIN: Computers, Informatics, Nursing.2023; 41(4): 230. CrossRef
The effect of educational compilation through video tutorials and visual AIDS on the quality of bowel preparation in patients undergoing colonoscopy
Jahanbakhsh Amirarsalani, Leyla Alilu, Masoumeh Hemmati-Maslakpak, Javad Rasouli
Acta Facultatis Medicae Naissensis.2023; 40(3): 307. CrossRef
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Olga Solonowicz, Matthew Stier, Karen Kim, Sonia Kupfer, Elliot Tapper, Neil Sengupta
Journal of Clinical Gastroenterology.2022; 56(2): 166. CrossRef
Pediatric Endoscopy Quality Improvement Network Quality Standards and Indicators for Pediatric Endoscopy Facilities
Jenifer R. Lightdale, Catharine M. Walsh, Priya Narula, Elizabeth C. Utterson, Marta Tavares, Joel R. Rosh, Matthew R. Riley, Salvatore Oliva, Petar Mamula, David R. Mack, Quin Y. Liu, Diana G. Lerner, Ian H. Leibowitz, Kevan Jacobson, Hien Q. Huynh, Matj
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Alleviating Pregastroscopy Anxiety Using Mobile Social Media Application
Dan Lu, Jing-Hua Wang, Chao Lu, Zheng-Lv Liu, Ajay Jain, Feng Ji, Qing Gu
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Benjamin Walter, Rena Frank, Leopold Ludwig, Nektarios Dikopoulos, Martina Mayr, Bruno Neu, Benjamin Mayer, Alexander Hann, Benjamin Meier, Karel Caca, Thomas Seufferlein, Alexander Meining
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Saurabh Chandan, Sumant Arora, Babu P. Mohan, Shahab R. Khan, Ojasvini C. Chandan, Lena L. Kassab, Arvind R. Murali
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Jamila Wynter, Shelley Hurwitz, John R. Saltzman, Jennifer Nayor
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Maria El Bizri, Mariam El Sheikh, Ga Eun Lee, Maida J. Sewitch, Tim Mathes
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Effects of a Personalized Smartphone App on Bowel Preparation Quality: Randomized Controlled Trial
Quirine E W van der Zander, Ankie Reumkens, Bas van de Valk, Bjorn Winkens, Ad A M Masclee, Rogier J J de Ridder
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Giray Akgul, Abdullah Ozgur Yeniova, Zeki Ozsoy, Erdinc Yenidogan, Ayse Kefeli, Mehmet Fatih Dasıran, Emin Daldal, Ahmet Akbas, İsmail Okan
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Xu Tian, Ling-Li Xu, Xiao-Ling Liu, Wei-Qing Chen
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Valentine Ongeri Millien, Nabil M. Mansour
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Effect of Sending Educational Video Clips via Smartphone Mobile Messenger on Bowel Preparation before Colonoscopy
Sung Chan Jeon, Jae Hyun Kim, Sun Jung Kim, Hye Jung Kwon, Youn Jung Choi, Kyoungwon Jung, Sung Eun Kim, Won Moon, Moo In Park, Seun Ja Park
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Maida J Sewitch, Carlo A Fallone, Peter Ghali, Ga Eun Lee
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Impact of Automated Time-released Reminders on Patient Preparedness for Colonoscopy
Jennifer Nayor, Aiden Feng, Taha Qazi, Shelley Hurwitz, John R. Saltzman
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Educational virtual reality videos in improving bowel preparation quality and satisfaction of outpatients undergoing colonoscopy: protocol of a randomised controlled trial
Yi Zhao, Feng Xie, Xiaoyin Bai, Aiming Yang, Dong Wu
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Halim Bou Daher, Ala I Sharara
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Yoo Jin Lee, Kyung Sik Park
Clinical Endoscopy.2017; 50(5): 412. CrossRef

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Focused Review Series: Endoscopic Screening and Surveillance for Gastrointestinal Cancer

Colon Cancer Screening and Surveillance in Inflammatory Bowel Disease: Song I Bae, You Sun Kim; Clin Endosc 2014;47(6):509-515. Published online November 30, 2014; DOI: https://doi.org/10.5946/ce.2014.47.6.509

Abstract PDF PubReader ePub

Patients with inflammatory bowel disease (IBD) have an increased risk of developing colorectal cancer (CRC). Accordingly, the duration and anatomic extent of the disease have been known to affect the development of IBD-related CRC. When CRC occurs in patients with IBD, unlike in sporadic CRC, it is difficult to detect the lesions because of mucosal changes caused by inflammation. In addition, the tumor types vary with ill-circumscribed lesions, and the cancer is difficult to diagnose and remedy at an early stage. For the diagnosis of CRC in patients with IBD, screening endoscopy is recommended 8 to 10 years after the IBD diagnosis, and surveillance colonoscopy is recommended every 1 to 2 years thereafter. The recent development of targeted biopsies using chromoendoscopy and relatively newer endoscopic techniques helps in the early diagnosis of CRC in patients with IBD. A total proctocolectomy is advisable when high-grade dysplasia or multifocal low-grade dysplasia is confirmed by screening endoscopy or surveillance colonoscopy or if a nonadenoma-like dysplasia-associated lesion or mass is detected. Currently, pharmacotherapies are being extensively studied as a way to prevent IBD-related CRC.

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Kai Wang, Ola Olén, Louise Emilsson, Hamed Khalili, Jonas Halfvarson, Mingyang Song, Jonas F. Ludvigsson
International Journal of Cancer.2023; 152(11): 2303. CrossRef
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Original Article

Angular Positioning of Stent Increases Bowel Perforation after Self-Expandable Metal Stent Placement for Malignant Colorectal Obstruction: Jeong Guil Lee, Kwang Ho Yoo, Chang-Il Kwon, Kwang Hyun Ko, Sung Pyo Hong; Clin Endosc 2013;46(4):384-389. Published online July 31, 2013; DOI: https://doi.org/10.5946/ce.2013.46.4.384

Abstract PDF PubReader ePub

Background/Aims

Some factors like stent wires, balloon dilatation and use of guide wires seems to increase perforation after self-expandable metal stent (SEMS) placement, but few studies mentioned about the relationship between angulation of malignant stricture and perforation. The present study aimed to confirm that more angular positioning of stents increases perforation.

Methods

This study was conducted with retrospectively evaluation at Digestive Disease Center, CHA Bundang Medical Center, CHA University. Between January 2002 and August 2011, SEMS was inserted in 130 patients with malignant colorectal obstruction. We studied the difference in the angle of stenosis between perforation and non-perforation groups using fluorography images.

Results

SEMS insertion was performed in 130 cases of obstruction due to colon cancer. Perforation occurred in eight patients (6.2%) of them. Thirteen cases were excluded from the analysis due to poor fluoroscopic images. Among the eight patients with perforation, the mean stenosis angle was 109.9° compared to 153.1° in the nonperforation group, indicating that the angle was more acute in the perforation group (p=0.016).

Conclusions

This study shows that more angular positioning of stent increases bowel perforation after SEMS placement for malignant colorectal obstruction.

Citations

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Martynas Mikalonis, Tue Højslev Avlund, Uffe Schou Løve
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Chong-Chi Chiu, Kuo-Chuan Hung, Li-Ren Yeh
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Clinical outcomes of colorectal stenting
S.V. Davydova, A.G. Fedorov, O.A. Yun, A.E. Klimov
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Case Report

Cronkhite-Canada Syndrome Associated with Serrated Adenoma and Malignant Polyp: A Case Report and a Literature Review of 13 Cronkhite-Canada Syndrome Cases in Korea: So Hee Yun, Jin Woong Cho, Ji Woong Kim, Joong Keun Kim, Moon Sik Park, Na Eun Lee, Jae Un Lee, Young Jae Lee; Clin Endosc 2013;46(3):301-305. Published online May 31, 2013; DOI: https://doi.org/10.5946/ce.2013.46.3.301

Abstract PDF PubReader ePub

Cronkhite-Canada syndrome (CCS) is a rare nonfamilial polyposis syndrome characterized by epithelial disturbances both in the gastrointestinal tract and in the epidermis. The pathologic finding of the polyp is usually a hamartomatous polyp of the juvenile type; however, the possibility of serrated adenoma associated malignant neoplasm was reported in some Japanese cases. Up till now in South Korea, 13 CCS cases have been reported, but there was no case accompanied by the colon cancer. We report the first case of CCS associated with malignant colon polyp and serrated adenoma in Korea. A 72-year-old male patient who complained of diarrhea and weight loss was presented with both hands and feet nail dystrophy, hyperpigmentation, and alopecia. Endoscopic examination showed numerous hamartomatous polyps from the stomach to the colon. The pathologic results confirmed colon cancer and serrated adenoma. Helicobacter pylori eradication and prednisolone was used. Thus, the authors report this case along with a literature review.

Citations

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Special Issue Articles of IDEN 2012

Current Status of Colorectal Endoscopic Submucosal Dissection in Korea: Dong Kyung Chang; Clin Endosc 2012;45(3):288-289. Published online August 22, 2012; DOI: https://doi.org/10.5946/ce.2012.45.3.288

Abstract PDF PubReader ePub

Colorectal endoscopic submucosal dissection (ESD) is not yet fully popularized in Korea, but is increasing steadily. The outcomes of colorectal ESD in Korea are comparable to those in Japan and other countries. ESD-related complication rates are decreasing as experiences accumulate. Particularly for rectal laterally spreading tumors, ESD is becoming more prevalent than transanal endoscopic microsurgery. Standard indication, qualified training system, and full medical insurance coverage should be established for the procedure to become popular in the long run.

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Undifferentiated Adenocarcinoma of the Colon with Rhabdoid Features: Seok Ju Lee, M.D., Tae Ho Kim, M.D., Dong Hoon Ko, M.D., Jeung Ah Kim, M.D., Chang Whan Kim, M.D., Jean A Kim, M.D.^†, Do Sang Lee, M.D.* and Sok Won Han, M.D.; Korean J Gastrointest Endosc 2010;40(1):49-53. Published online January 30, 2010

Abstract PDF: Malignant rhabdoid tumors were first described in 1978 by Beckwith and Palmer as a rare variant of Wilms' tumors with a "rhabdomyosarcomatoid" pattern and a particularly poor prognosis. Week reclassified this disease as a distinct disease in 1989 and thereafter, there have been several reports about malignant rhabdoid tumor that occurred in various organs, including the colon. The histologic characteristics of rhabdoid tumor are noncohesive or loosely cohesive cells with high cellularity, an eccentric large nucleus and eosinophilic cytoplasm, and the cytoplasm is usually positive for vimentin and it contain hyaline inclusions. On immunohistochemical staining, the cells are usually positive for vimentin and cytokeratin and they are negative for desmin. This tumor progresses rapidly and it has a very poor prognosis, but survival is better if there is no lymphatic or distant metastasis. We experienced a patient who suffered with undifferentiated adenocarcinoma with rhabdoid features in the ascending colon. (Korean J Gastrointest Endosc 2010;40:49-53)

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A Case of Chronic Ulcerative Colitis Complicated by Budd-Chiari Syndrome and Colon Cancer: Rok Son Choung, M.D., Yoon Tae Jeen, M.D., Yong Sik Kim, M.D., Young Sun Kim, M.D., Hong Sik Lee, M.D., Hoon Jai Chun, M.D., Soon Ho Um, M.D., Sang Woo Lee, M.D., Jai Hyun Choi, M.D., Chang Duck Kim, M.D., Ho Sang Ryu, M.D. and Jin Hai Hyun, M.D.; Korean J Gastrointest Endosc 2004;28(6):326-331. Published online June 30, 2004

Abstract PDF: Ulcerative colitis is a chronic inflammatory bowel disease and may have many intestinal and extraintestinal complications. Compared with general population, patients with longstanding ulcerative colitis have an increased risk of colorectal cancer. Patients with ulcerative colitis have an increased frequency of thromboembolism too. However, hepatic vein thrombosis is a very rare extraintestinal complication. This is the first reported case of a young patient with ulcerative colitis who developed synchronous colonic neoplasm and chronic Budd-Chiari syndrome manifested as esophageal variceal bleeding. We report a case of ulcerative colitis complicated by Budd-Chiari syndrome and colon cancer in a 28-year-old female. (Korean J Gastrointest Endosc 2004;28:326⁣331)

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한국인에서 조기 대장암의 형태학적 특성: Korean J Gastrointest Endosc 2003;27(5):370-370. Published online November 20, 2003

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직장 및 S상결장에서 발견된 용종성 질환의 의의 ( Clinical Significance of Polypoid Lesions in Rectosigmoid Colon : Correlation with Proximal Colonic Lesions ): Korean J Gastrointest Endosc 1993;13(4):719-724. Published online November 30, 1992

Abstract PDF: Recently the incidence of colonic disease increases in Korea. Because a large proportion of polyps and cancer occur in the rectosigmoid colon, fecal occult blood test and sigmoidoscopy have been used widely in screening test. (continue...)

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