Intestinal Research

Seong Ran Jeon

16 Articles

Endoscopy

Use of device-assisted enteroscopy in small bowel disease: an expert consensus statement by the Korean Association for the Study of Intestinal Diseases: Han Hee Lee, Jin Su Kim, Hyeon Jeong Goong, Shin Hee Lee, Eun Hye Oh, Jihye Park, Min Cheol Kim, Kwangwoo Nam, Young Joo Yang, Tae Jun Kim, Seung-Joo Nam, Hee Seok Moon, Jae Hyun Kim, Duk Hwan Kim, Seong-Eun Kim, Seong Ran Jeon, Seung-Jae Myung, The Small Intestine Research Group of the Korean Association for the Study of Intestinal Diseases (KASID); Intest Res 2023;21(1):3-19. Published online January 31, 2023; DOI: https://doi.org/10.5217/ir.2022.00108

The introduction of device-assisted enteroscopy (DAE) in the beginning of 21st century has revolutionized the diagnosis and treatment of diseases of the small intestine. In contrast to capsule endoscopy, the other main diagnostic modality of the small bowel diseases, DAE has the unique advantages of observing the region of interest in detail and enabling tissue acquisition and therapeutic intervention. As DAE becomes an essential procedure in daily clinical practice, there is an increasing need for correct guidelines on when and how to perform it and what technical factors should be considered. In response to these needs, the Korean Association for the Study of Intestinal Diseases developed an expert consensus statement on the performance of DAE by reviewing the current evidence. This expert consensus statement particularly focuses on the indications, choice of insertion route, therapeutic intervention, complications, and relevant technical points.

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Effect of Different Types of Antithrombotic Agents on Clinical Outcomes in Patients With Small Bowel Bleeding Who Underwent Balloon‐Assisted Enteroscopy: A KASID Multicenter Study
Jihye Park, Jin Su Kim, Joo Hye Song, Kwangwoo Nam, Seong‐Eun Kim, Eui Sun Jeong, Jae Hyun Kim, Seong Ran Jeon
Journal of Gastroenterology and Hepatology.2025; 40(2): 456. CrossRef
Balloon-assisted enteroscopy in the management of adult small-bowel intussusception: a comparative analysis of with and without double-balloon enteroscopy
Won Shik Kim, Beom Jae Lee, Moon Kyung Joo, Seung Han Kim, Jong-Jae Park
Surgical Endoscopy.2025; 39(3): 2044. CrossRef
From Data to Insights: How Is AI Revolutionizing Small-Bowel Endoscopy?
Joana Mota, Maria João Almeida, Francisco Mendes, Miguel Martins, Tiago Ribeiro, João Afonso, Pedro Cardoso, Helder Cardoso, Patrícia Andrade, João Ferreira, Miguel Mascarenhas, Guilherme Macedo
Diagnostics.2024; 14(3): 291. CrossRef
Role of Device-Assisted Enteroscopy in Crohn’s Disease
Giulia Catassi, Clelia Marmo, Antonio Gasbarrini, Maria Elena Riccioni
Journal of Clinical Medicine.2024; 13(13): 3919. CrossRef
Discordance Rate and Risk Factor of Other Diagnostic Modalities for Small Bowel Tumors Detected by Device-Assisted Enteroscopy: A Korean Association for the Study of Intestinal Disease (KASID) Multicenter Study
Jihye Park, Jin Su Kim, Joo Hye Song, Kwangwoo Nam, Seong-Eun Kim, Eui Sun Jeong, Jae Hyun Kim, Seong Ran Jeon
Gut and Liver.2024; 18(4): 686. CrossRef

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Cancer

Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 revised edition: Su Young Kim, Min Seob Kwak, Soon Man Yoon, Yunho Jung, Jong Wook Kim, Sun-Jin Boo, Eun Hye Oh, Seong Ran Jeon, Seung-Joo Nam, Seon-Young Park, Soo-Kyung Park, Jaeyoung Chun, Dong Hoon Baek, Mi-Young Choi, Suyeon Park, Jeong-Sik Byeon, Hyung Kil Kim, Joo Young Cho, Moon Sung Lee, Oh Young Lee, Korean Society of Gastrointestinal Endoscopy, Korean Society of Gastroenterology, Korean Association for the Study of Intestinal Diseases; Intest Res 2023;21(1):20-42. Published online January 31, 2023; DOI: https://doi.org/10.5217/ir.2022.00096

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Colonoscopic polypectomy is effective in decreasing the incidence and mortality of colorectal cancer (CRC). Premalignant polyps discovered during colonoscopy are associated with the risk of metachronous advanced neoplasia. Postpolypectomy surveillance is the most important method for managing advanced metachronous neoplasia. A more efficient and evidence-based guideline for postpolypectomy surveillance is required because of the limited medical resources and concerns regarding colonoscopy complications. In these consensus guidelines, an analytic approach was used to address all reliable evidence to interpret the predictors of CRC or advanced neoplasia during surveillance colonoscopy. The key recommendations state that the high-risk findings for metachronous CRC following polypectomy are as follows: adenoma ≥10 mm in size; 3 to 5 (or more) adenomas; tubulovillous or villous adenoma; adenoma containing high-grade dysplasia; traditional serrated adenoma; sessile serrated lesion containing any grade of dysplasia; serrated polyp of at least 10 mm in size; and 3 to 5 (or more) sessile serrated lesions. More studies are needed to fully comprehend the patients who are most likely to benefit from surveillance colonoscopy and the ideal surveillance interval to prevent metachronous CRC.

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Survey of the Actual Practices Used for Endoscopic Removal of Colon Polyps in Korea: A Comparison with the Current Guidelines
Jeongseok Kim, Tae-Geun Gweon, Min Seob Kwak, Su Young Kim, Seong Jung Kim, Hyun Gun Kim, Sung Noh Hong, Eun Sun Kim, Chang Mo Moon, Dae Seong Myung, Dong-Hoon Baek, Shin Ju Oh, Hyun Jung Lee, Ji Young Lee, Yunho Jung, Jaeyoung Chun, Dong-Hoon Yang, Eun R
Gut and Liver.2025; 19(1): 77. CrossRef
The impact of COVID-19 on clinical practices of colorectal cancer in South Korea
Kwang Woo Kim, Hyoun Woo Kang
Intestinal Research.2025; 23(1): 6. CrossRef
Colorectal Cancer after Colonoscopy: Causes and Prevention Strategies
Seongwoo Choi, Yunho Jung
The Korean Journal of Medicine.2025; 100(1): 19. CrossRef
The histologic features, molecular features, detection and management of serrated polyps: a review
Jin-Dong Wang, Guo-Shuai Xu, Xin-Long Hu, Wen-Qiang Li, Nan Yao, Fu-Zhou Han, Yin Zhang, Jun Qu
Frontiers in Oncology.2024;[Epub] CrossRef
Screening and surveillance for hereditary colorectal cancer
Hee Man Kim, Tae Il Kim
Intestinal Research.2024; 22(2): 119. CrossRef
Prediction of Lymph Node Metastasis in T1 Colorectal Cancer Using Artificial Intelligence with Hematoxylin and Eosin-Stained Whole-Slide-Images of Endoscopic and Surgical Resection Specimens
Joo Hye Song, Eun Ran Kim, Yiyu Hong, Insuk Sohn, Soomin Ahn, Seok-Hyung Kim, Kee-Taek Jang
Cancers.2024; 16(10): 1900. CrossRef
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
Efficacy of Oral Sulfate Tablet and 2 L-Polyethylene Glycol With Ascorbic Acid for Bowel Preparation: A Prospective Randomized KASID Multicenter Trial
Yunho Jung, Hyun Gun Kim, Dong-Hoon Yang, Hyoun Woo Kang, Jae Jun Park, Dong Hoon Baek, Jaeyoung Chun, Tae-Geun Gweon, Hyeon Jeong Goong, Min Seob Kwak, Hyun Jung Lee, Soo-Kyung Park, Jong Hoon Lee
Journal of Korean Medical Science.2024;[Epub] CrossRef
Post-colonoscopy Colorectal Cancer: Causes and Prevention
Jong Yoon Lee
Journal of Digestive Cancer Research.2024; 12(3): 160. CrossRef
Korean Guidelines for Postpolypectomy Colonoscopic Surveillance: 2022 Revision
Su Young Kim
The Korean Journal of Medicine.2023; 98(3): 102. CrossRef
Clinical characteristics and risk factors related to polyposis recurrence and advanced neoplasm development among patients with non-hereditary colorectal polyposis
Jihun Jang, Jihye Park, Soo Jung Park, Jae Jun Park, Jae Hee Cheon, Tae Il Kim
Intestinal Research.2023; 21(4): 510. CrossRef
Summary and comparison of recently updated post-polypectomy surveillance guidelines
Yoon Suk Jung
Intestinal Research.2023; 21(4): 443. CrossRef
Strategy for post-polypectomy colonoscopy surveillance: focus on the revised Korean guidelines
Yong Soo Kwon, Su Young Kim
Journal of the Korean Medical Association.2023; 66(11): 652. CrossRef

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Inflammatory Bowel Diseases

The role of platelet to lymphocyte ratio and neutrophil to lymphocyte ratio in ulcerative colitis: Yujin Jeong, Seong Ran Jeon, Hyun Gun Kim, Jung Rock Moon, Tae Hee Lee, Jae Young Jang, Jun-Hyung Cho, Jun Seok Park, Heesu Park, Ki-hun Lee, Jin-Oh Kim, Joon Seong Lee, Bong Min Ko, Suyeon Park; Intest Res 2021;19(1):62-70. Published online May 8, 2020; DOI: https://doi.org/10.5217/ir.2019.09156

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Background/Aims
Neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) can serve as biomarkers for diagnosing and assessing disease activity in ulcerative colitis (UC). We investigated their clinical significance in UC.
Methods
We analyzed 48 patients with UC who underwent measurement of fecal calprotectin (FC) and endoscopy and 96 age- and sex-matched healthy controls. NLR and PLR were compared between the patients and healthy controls. The endoscopic activity was divided into 2 groups: group 1 (mild to moderate inflammation) and group 2 (severe inflammation) according to the Mayo endoscopic subscore in UC.
Results
To diagnose UC, the optimal cutoff of NLR and PLR was 2.26 (sensitivity 54.2%; specificity 90.6%; positive likelihood ratio 5.778, 95% confidence interval [CI] 2.944–11.339; area under the curve [AUC] 0.774, 95% CI, 0.690–0.859) and 179.8 (sensitivity 35.4%; specificity 90.6%; positive likelihood ratio 3.778, 95% CI 1.821–7.838; AUC 0.654, 95% CI 0.556–0.753), respectively. The optimal cutoff to differentiate group 1 and group 2 was 3.44, 175.9, and 453 µg/g for NLR, PLR, and FC, respectively (sensitivity, 63.6% vs. 90.9% vs. 81.8%; specificity, 81.1% vs. 78.4% vs. 73.0%; positive likelihood ratio, 3.364 vs. 4.205 vs. 3.027; AUC, 0.714 vs. 0.897 vs. 0.813). PLR had the highest AUC and positive likelihood ratio.
Conclusions
NLR and PLR help differentiate patients with UC from healthy controls. NLR, PLR, and FC indicate endoscopic activity and may reflect intestinal mucosal conditions.

Citations

Citations to this article as recorded by

Predictive Value of Albumin to Fibrinogen Ratio and CALLY Index for Diagnosis of Ulcerative Colitis and Mucosal Healing After Vedolizumab Treatment
Kairong Su, Sinan Xiao, Mei Wang, Kairuo Wang, Qing Fan, Sumei Sha, Yongli Cheng, Xin Liu, Haitao Shi
Journal of Inflammation Research.2025; Volume 18: 589. CrossRef
The ability of C-reactive protein-albumin ratio to predict disease activity in ulcerative colitis
Ibrahimhalil Dusunceli, Zeynep Gok Sargin, Umut Celik, Fatih Sargin
Biomarkers in Medicine.2025; 19(4): 113. CrossRef
Exploring the utility of cellular indices in the diagnosis of ulcerative colitis
Julio César Moreno Alfonso, Sharom Barbosa-Velásquez, Carlos Delgado-Miguel, Ada Molina Caballero, Sara Hernández-Martín, Alberto Pérez Martínez, María Concepción Yárnoz Irazábal
Gastroenterología y Hepatología.2025; : 502349. CrossRef
Clinical relevance of inflammatory markers in the evaluation of severity of ulcerative colitis: A retrospective study
Tao He, Lian-Qiang Song, Xiao-Yu Weng, Peng Pan, Hui Ding, Mei-Qin Liu, Shi-Lin Qiu, Shan-Ming Sun
Open Life Sciences.2025;[Epub] CrossRef
Ischemia-modified albumin: a novel blood marker of endoscopic mucosal healing in inflammatory bowel disease
Seung Bum Lee, Hyun-Ki Kim, Sang Hyuk Park, Ji-Hun Lim, Sang Hyoung Park
Intestinal Research.2024; 22(1): 75. CrossRef
Evaluation of the prognostic nutritional index (PNI) as a tool for assessing disease activity in rheumatoid arthritis patients
Nuran Öz, Halise Hande Gezer, Selin Cilli Hayıroğlu, Mehmet Tuncay Duruöz
Clinical Rheumatology.2024; 43(5): 1461. CrossRef
Progress in Biomarkers of Inflammatory Bowel Disease
舒陈
Advances in Clinical Medicine.2024; 14(03): 1418. CrossRef
Fecal calprotectin and platelet count predict histologic disease activity in pediatric ulcerative colitis: results from a projection-predictive feature selection
B. Schiller, E. Wirthgen, F. Weber, S. Schiller, M. Radke, M. Claßen, J. Däbritz, S. Buderus, P. Bufler, J. Däbritz, S. Dammann, J. de Laffolie, M. Friedt, A. Hauer, K. M. Keller, A. Krahl, M. Laaß, T. Lang, C. Posovszky, B. Rodeck, S. Trenkel
European Journal of Pediatrics.2024; 183(8): 3277. CrossRef
Association of Hemogram Parameters with Body Mass Index in Knee Osteoarthritis
Koksal Gundogdu, Gülşah Gündoğdu, Alper Kurtoğlu
Online Türk Sağlık Bilimleri Dergisi.2024; 9(3): 202. CrossRef
Systemic Immune-Inflammation Index: Unveiling the Diagnostic Potential in Ulcerative Colitis through a Comprehensive Systematic Review and Meta-Analysis
Anas Elgenidy, Omar Alomari, Tasbih Emad, Sara K. Kamal, Islam E. Al Ghanam, Aya Sherif, Mohammed Al-mahdi Al-kurdi, Abdallah A. Helal, Yusof Mohamed Omar, Mohamed Rafiek Ramadan
Gastroenterology & Endoscopy.2024;[Epub] CrossRef
CRP/Albumin Ratio as Potential Indicator for Assessment of Disease Activity in Inflammatory Bowel Disease Patients
Fatma Abdel-Kader Attia Mohamed, Eman Refaat Youness, Marwa M. Hassan, Nesma Hassan Hasanein Ashour
Biomedical and Pharmacology Journal.2024; 17(4): 2683. CrossRef
Cytomegalovirus Reactivation in Ulcerative Colitis Patients: Early Indicators
LN Altunal, AS Ozel, C AK
Nigerian Journal of Clinical Practice.2023; 26(6): 765. CrossRef
The role of platelet-to-lymphocyte ratio and neutrophil-to-lymphocyte ratio in the diagnosis and severity of inflammatory bowel disease in children
Arefeh Zahmatkesh, Mohammad Hassan Sohouli, Seyed Mahmoud Eshagh Hosseini, Pejman Rohani
European Journal of Pediatrics.2023; 182(9): 4263. CrossRef
Ülseratif kolit aktivitesi ve şiddetinin invaziv olmayan biyobelirteçler ile değerlendirilmesi
İlyas TENLİK, Orhan COŞKUN, Mustafa ÇAPRAZ, Volkan GÖKBULUT, Ömer ÖZTÜRK
Akademik Gastroenteroloji Dergisi.2023; 22(2): 59. CrossRef
Interrelation of Hypoxia-Inducible Factor-1 Alpha (HIF-1 α) and the Ratio between the Mean Corpuscular Volume/Lymphocytes (MCVL) and the Cumulative Inflammatory Index (IIC) in Ulcerative Colitis
Ioan Sabin Poenariu, Lidia Boldeanu, Bogdan Silviu Ungureanu, Daniel Cosmin Caragea, Oana Mariana Cristea, Vlad Pădureanu, Isabela Siloși, Anca Marinela Ungureanu, Răzvan-Cristian Statie, Alina Elena Ciobanu, Dan Ionuț Gheonea, Eugen Osiac, Mihail Virgil
Biomedicines.2023; 11(12): 3137. CrossRef
Effect of ozone therapy on neutrophil/lymphocyte, platelet/lymphocyte ratios, and disease activity in ankylosing spondylitis
Habibe İnci, Fatih İnci
Medical Gas Research.2023; 13(2): 53. CrossRef
Biomarker dynamics during infliximab salvage for acute severe ulcerative colitis: C-reactive protein (CRP)-lymphocyte ratio and CRP-albumin ratio are useful in predicting colectomy
Danny Con, Bridgette Andrew, Steven Nicolaides, Daniel R van Langenberg, Abhinav Vasudevan
Intestinal Research.2022; 20(1): 101. CrossRef
Personalized medicine in inflammatory bowel disease: Perspectives on Asia
Su Hyun Park, Sang Hyoung Park
Journal of Gastroenterology and Hepatology.2022; 37(8): 1434. CrossRef
The Usefulness of Extended Inflammation Parameters and Systemic Inflammatory Response Markers in the Diagnostics of Autoimmune Hepatitis
Weronika Domerecka, Anna Kowalska-Kępczyńska, Iwona Homa-Mlak, Agata Michalak, Radosław Mlak, Marcin Mazurek, Halina Cichoż-Lach, Teresa Małecka-Massalska
Cells.2022; 11(16): 2554. CrossRef
Complete Blood Count-Derived Inflammatory Markers Changes in Dogs with Chronic Inflammatory Enteropathy Treated with Adipose-Derived Mesenchymal Stem Cells
José Ignacio Cristóbal, Francisco Javier Duque, Jesús Usón-Casaús, Rafael Barrera, Esther López, Eva María Pérez-Merino
Animals.2022; 12(20): 2798. CrossRef
Evaluation of neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio as potential markers for ulcerative colitis: a retrospective study
Wan Feng, Yajun Liu, Lei Zhu, Luzhou Xu, Hong Shen
BMC Gastroenterology.2022;[Epub] CrossRef
Association of Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio with Diabetic Kidney Disease in Chinese Patients with Type 2 Diabetes: A Cross-Sectional Study
Lan Li, Qing Shen, Sijie Rao
Therapeutics and Clinical Risk Management.2022; Volume 18: 1157. CrossRef
Evaluation of Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio in Chronic Plaque Psoriasis
Sudeshna Mondal, Samudra Guha, Abanti Saha, Loknath Ghoshal, Debabrata Bandyopadhyay
Indian Journal of Dermatology.2022; 67(4): 477. CrossRef
Correlations of disease severity and age with hematology parameter variations in patients with COVID‐19 pre‐ and post‐treatment
Juanying Liang, Shaoyun Nong, Liejun Jiang, Xiaowei Chi, Dewu Bi, Jun Cao, Lida Mo, Xiaolu Luo, Huayi Huang
Journal of Clinical Laboratory Analysis.2021;[Epub] CrossRef
Elevated systemic immune inflammation index level is associated with disease activity in ulcerative colitis patients
Yiyi Xie, Tingting Zhuang, Ying Ping, Yingzhi Zhang, Xuchu Wang, Pan Yu, Xiuzhi Duan
Clinica Chimica Acta.2021; 517: 122. CrossRef
Endoscopy within 7 days after detecting high calprotectin levels can be useful for therapeutic decision-making in ulcerative colitis
Ho Min Yong, Sung-Jo Park, Seong Ran Jeon, Heesu Park, Hyun Gun Kim, Tae Hee Lee, Junseok Park, Jin-Oh Kim, Joon Seong Lee, Bong Min Ko, Hyeon Jeong Goong, Suyeon Park
Medicine.2021; 100(34): e27065. CrossRef
Inflammatory Bowel Disease and Neutrophil–Lymphocyte Ratio: A Systematic Scoping Review
Blake O. Langley, Sara E. Guedry, Joshua Z. Goldenberg, Douglas A. Hanes, Jennifer A. Beardsley, Jennifer Joan Ryan
Journal of Clinical Medicine.2021; 10(18): 4219. CrossRef
Lymphocyte-to-Monocyte Ratio as a Marker for Endoscopic Activity in Ulcerative Colitis
Natsuki Ishida, Satoru Takahashi, Yusuke Asai, Takahiro Miyazu, Satoshi Tamura, Shinya Tani, Mihoko Yamade, Moriya Iwaizumi, Yasushi Hamaya, Satoshi Osawa, Takahisa Furuta, Ken Sugimoto
Immuno.2021; 1(4): 360. CrossRef
Peripheral blood neutrophil-to-lymphocyte ratio in inflammatory bowel disease and disease activity: A meta-analysis
Wei Fu, Hu Fu, Weixia Ye, Yinsuo Han, Xianqiang Liu, Sirui Zhu, Hongmin Li, Rong Tang, Qin Wang
International Immunopharmacology.2021; 101: 108235. CrossRef
Neutrophil-to-Lymphocyte and Platelet-to-Lymphocyte Ratios as Noninvasive Predictors of the Therapeutic Outcomes of Systemic Corticosteroid Therapy in Ulcerative Colitis
Katsuya Endo, Tomonori Satoh, Yuki Yoshino, Shiho Kondo, Yoko Kawakami, Tomofumi Katayama, Yoshiteru Sasaki, Atsuko Takasu, Takayuki Kogure, Morihisa Hirota, Takayoshi Meguro, Kennichi Satoh
Inflammatory Intestinal Diseases.2021; 6(4): 218. CrossRef
Association between platelet count and mucosal healing in Japanese patients with ulcerative colitis: a cross-sectional study
Shinya Furukawa, Sen Yagi, Kana Shiraishi, Kenichirou Mori, Tomoyuki Ninomiya, Keitarou Kawasaki, Yuji Mizukami, Seiyuu Suzuki, Masayoshi Uraoka, Naozumi Shibata, Sanae Nakamura, Satoshi Imamine, Hidehiro Murakami, Katsuhisa Ohashi, Masamoto Torisu, Aki H
BMC Gastroenterology.2020;[Epub] CrossRef

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Colorectal neoplasia

Clinical outcomes of positive resection margin after endoscopic mucosal resection of early colon cancers: Junseok Park, Hyun Gun Kim, Shin Ok Jeong, Hoon gil Jo, Hyo Yeop Song, Jeeyeon Kim, Seri Ryu, Youngyun Cho, Hyun Jin Youn, Seong Ran Jeon, Jin-Oh Kim, Bong Min Ko, Yoon Mi Jeen, So-Young Jin; Intest Res 2019;17(4):516-526. Published online May 31, 2019; DOI: https://doi.org/10.5217/ir.2018.00169

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Background/Aims
When determining the subsequent management after endoscopic resection of the early colon cancer (ECC), various factors including the margin status should be considered. This study assessed the subsequent management and outcomes of ECCs according to margin status.
Methods
We examined the data of 223 ECCs treated by endoscopic mucosal resection (EMR) from 215 patients during 2004 to 2014, and all patients were followed-up at least for 2 years.
Results
According to histological analyses, the margin statuses of all lesions after EMR were as follows: 138 cases (61.9%) were negative, 65 cases (29.1%) were positive for dysplastic cells on the resection margins, and 20 cases (8.9%) were uncertain. The decision regarding subsequent management was affected not only by pathologic outcomes but also by the endoscopist’s opinion on whether complete resection was obtained. Surgery was preferred if the lesion extended to the submucosa (odds ratio [OR], 25.46; 95% confidence interval [CI], 7.09–91.42), the endoscopic resection was presumed incomplete (OR, 15.55; 95% CI, 4.28–56.56), or the lymph system was invaded (OR, 13.69; 95% CI, 1.76–106.57). Fourteen patients (6.2%) had residual or recurrent malignancies at the site of the previous ECC resection and were significantly associated with presumed incomplete endoscopic resection (OR, 4.59; 95% CI, 1.21–17.39) and submucosal invasion (OR, 5.14; 95% CI, 1.18–22.34).
Conclusions
Subsequent surgery was associated with submucosa invasion, lymphatic invasion, and cancer-positive margins. Presumed completeness of the resection may be helpful for guiding the subsequent management of patients who undergo endoscopic resection of ECC.

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Risk Factors for Perforation in Endoscopic Treatment for Early Colorectal Cancer: A Nationwide ENTER-K Study
Ik Hyun Jo, Hyun Gun Kim, Young-Seok Cho, Hyun Jung Lee, Eun Ran Kim, Yoo Jin Lee, Sung Wook Hwang, Kyeong-Ok Kim, Jun Lee, Hyuk Soon Choi, Yunho Jung, Chang Mo Moon
Gut and Liver.2025; 19(1): 95. CrossRef
Long-term outcomes after endoscopic versus surgical resection of T1 colorectal carcinoma
Hyun Jin Bae, Hoyeon Ju, Han Hee Lee, Jinsu Kim, Bo-In Lee, Sung Hak Lee, Daeyoun David Won, Yoon Suk Lee, In Kyu Lee, Young-Seok Cho
Surgical Endoscopy.2023; 37(2): 1231. CrossRef
Emergence of a New Optical Marker for Colorectal Neoplasms: To What Extent Should We Accept It?
Han Hee Lee
Clinical Endoscopy.2022; 55(2): 315. 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
Clinical outcomes of submucosal colorectal cancer diagnosed after endoscopic resection: a focus on the need for surgery
Yun Sik Choi, Wan Soo Kim, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Byong Duk Ye, Seung-Jae Myung, Suk-Kyun Yang, Jeong-Sik Byeon
Intestinal Research.2020; 18(1): 96. CrossRef

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IBD

Is once daily multimatrix mesalazine therapy effective regardless of the dose in patients with mild to moderate ulcerative colitis?: Seong Ran Jeon; Intest Res 2018;16(2):163-165. Published online April 30, 2018; DOI: https://doi.org/10.5217/ir.2018.16.2.163

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Inflammatory Bowel Disease – Non-biological treatment
Fernando Magro, Gonçalo Cordeiro, Andreia Martins Dias, Maria Manuela Estevinho
Pharmacological Research.2020; 160: 105075. CrossRef

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Practice patterns and clinical significance of use of capsule endoscopy in suspected and established Crohn's disease: Yonghyun Kim, Seong Ran Jeon, Sang Myung Choi, Hyun Gun Kim, Tae Hee Lee, Jun-Hyung Cho, Yunho Jung, Wan Jung Kim, Bong Min Ko, Jin-Oh Kim, Joon Sung Lee, Moon Sung Lee; Intest Res 2017;15(4):467-474. Published online October 23, 2017; DOI: https://doi.org/10.5217/ir.2017.15.4.467

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Background/Aims

Although the role of capsule endoscopy (CE) in Crohn's disease (CD) has expanded, CE is not used routinely for diagnosing and evaluating CD in Korea. We aimed to investigate current patterns of practice and evaluate the clinical significance of the use of CE in CD in Korean patients.

Methods

Among 651 CE procedures performed for various indications, we retrospectively analyzed the medical records of patients who underwent CE in 57 cases of suspected CD (sCD) and 14 cases of established CD (eCD).

Results

In the sCD group, CE was most commonly used for the initial diagnosis of CD (54.4%). Capsule retention was found in only 1 patient in the eCD group (1/71, 1.4%). In the sCD group, 28.1% of patients were diagnosed with CD on the basis of CE findings; other diseases diagnosed included tuberculous enteritis (7.0%), non-steroidal anti-inflammatory drug-induced enteropathy (5.3%), and other enteritis (17.5%). Only 11.5% of patients with eCD (14/122) underwent CE. The indication for CE in the 14 patients with eCD was to assess disease extent and activity. The overall diagnostic yield of CE was 59.7%. Therapeutic strategies were changed in 70.2% of patients in the sCD group and 50% of those in the eCD group based on CE findings.

Conclusions

In clinical practice, CE was most commonly indicated for the initial diagnosis of CD and was not generally performed in patients with eCD. CE appears to be an effective diagnostic modality for evaluating sCD and is useful for determining therapeutic strategies for patients with sCD and those with eCD.

Citations

Citations to this article as recorded by

Video capsule endoscopy in inflammatory bowel disease
Kenji J.L. Limpias Kamiya, Naoki Hosoe, Yukie Hayashi, Takaaki Kawaguchi, Kaoru Takabayashi, Haruhiko Ogata, Takanori Kanai
DEN Open.2022;[Epub] CrossRef
Enteroscopy in Crohn’s Disease: Are There Any Changes in Role or Outcomes Over Time? A KASID Multicenter Study
Seong Ran Jeon, Jin-Oh Kim, Jeong-Sik Byeon, Dong-Hoon Yang, Bong Min Ko, Hyeon Jeong Goong, Hyun Joo Jang, Soo Jung Park, Eun Ran Kim, Sung Noh Hong, Jong Pil Im, Seong-Eun Kim, Ja Seol Koo, Chang Soo Eun, Dong Kyung Chang
Gut and Liver.2021; 15(3): 375. CrossRef
Capsule Endoscopy in Crohn’s Disease—From a Relative Contraindication to Habitual Monitoring Tool
Adi Lahat, Ido Veisman
Diagnostics.2021; 11(10): 1737. CrossRef
Use of small bowel capsule endoscopy in clinical practice: how has it performed?
Seong Ran Jeon
The Korean Journal of Internal Medicine.2020; 35(4): 854. CrossRef
Pursuing therapeutic success in Crohn’s disease: A matter of definition, tools and longterm outcomes
Loredana Goran, Monica State, Ana Maria Negreanu, Lucian Negreanu
European Journal of Inflammation.2020; 18: 205873922096289. CrossRef
Capsule endoscopy: Current status and role in Crohn’s disease
Loredana Goran, Ana Maria Negreanu, Ana Stemate, Lucian Negreanu
World Journal of Gastrointestinal Endoscopy.2018; 10(9): 184. CrossRef
Role of capsule endoscopy in suspected or established Crohn's disease in real practice
Hyun Joo Jang
Intestinal Research.2017; 15(4): 431. CrossRef

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Reappraisal of Pneumoperitoneum After Percutaneous Endoscopic Gastrostomy: Won Young Park, Tae Hee Lee, Joon Seong Lee, Su Jin Hong, Seong Ran Jeon, Hyun Gun Kim, Joo Young Cho, Jin Oh Kim, Jun Hyung Cho, Sang Wook Lee, Young Kwan Cho; Intest Res 2015;13(4):313-317. Published online October 15, 2015; DOI: https://doi.org/10.5217/ir.2015.13.4.313

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Background/Aims

Pneumoperitoneum is recognized as a benign and self-limiting finding after the insertion of a percutaneous endoscopic gastrostomy (PEG) tube, while complicated pneumoperitoneum is rarely reported. The aim of this study was to reappraise pneumoperitoneum following PEG.

Methods

We retrospectively reviewed 193 patients who underwent PEG from May 2008 to May 2014. All patients had a follow-up upright chest or simple abdominal radiograph after PEG. Pneumoperitoneum was quantified by measuring the height of the air column under the diaphragm and graded as small (<2 cm), moderate (2-4 cm), or large (>4 cm). Clinically significant signs were defined as fever, abdominal tenderness or leukocytosis occurring after PEG insertion.

Results

Of the 193 study patients, 9 (4.6%) had a pneumoperitoneum visualized by radiographic imaging, graded as small in 5 patients, moderate in 2 patients and large in 2 patients. Clinically significant signs were observed in 5 (55.5%) patients with fever reported in 4 patients, abdominal tenderness in 4 patients and leukocytosis in 4 patients. The time to resolution of free air was 2-18 days. Two patients (22.2%) with moderate or large pneumoperitoneum after PEG died from either pneumonia or septic shock.

Conclusions

The clinical course of pneumoperitoneum after PEG is not always benign and self-limiting. These findings suggest that clinicians should not neglect a moderate or large pneumoperitoneum, particularly in patients who have an altered mental status or received antibiotics, since peritoneal irritation cannot be observed under these circumstances.

Citations

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Clinical Practice Guideline for Percutaneous Endoscopic Gastrostomy
Chung Hyun Tae, Ju Yup Lee, Moon Kyung Joo, Chan Hyuk Park, Eun Jeong Gong, Cheol Min Shin, Hyun Lim, Hyuk Soon Choi, Miyoung Choi, Sang Hoon Kim, Chul-Hyun Lim, Jeong-Sik Byeon, Ki-Nam Shim, Geun Am Song, Moon Sung Lee, Jong-Jae Park, Oh Young Lee
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Endoscopic Complications Are More Frequent in Levodopa–Carbidopa Intestinal Gel Treatment via JET-PEG in Parkinson’s Disease Patients Compared to Nutritional PEG in Non-Parkinson’s Disease Patients
Laura Gombošová, Jana Deptová, Ivana Jochmanová, Tatiana Svoreňová, Eduard Veseliny, Mária Zakuciová, Vladimír Haň, Alexandra Lacková, Kristína Kulcsárová, Miriama Ostrožovičová, Joaquim Ribeiro Ventosa, Lenka Trcková, Ivica Lazúrová, Matej Škorvánek
Journal of Clinical Medicine.2024; 13(3): 703. CrossRef
Clinical practice guidelines for percutaneous endoscopic gastrostomy
Chung Hyun Tae, Ju Yup Lee, Moon Kyung Joo, Chan Hyuk Park, Eun Jeong Gong, Cheol Min Shin, Hyun Lim, Hyuk Soon Choi, Miyoung Choi, Sang Hoon Kim, Chul-Hyun Lim, Jeong-Sik Byeon, Ki-Nam Shim, Geun Am Song, Moon Sung Lee, Jong-Jae Park, Oh Young Lee
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Pneumoperitoneum After Jejunostomy Tube Placement Managed by Needle Decompression: A Case Report
Khalid Al Shamousi, Masoud Salim Kashoob, Jawahir Lal, Said A Al-Busafi
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Clinical Practice Guideline for Percutaneous Endoscopic Gastrostomy
Chung Hyun Tae, Ju Yup Lee, Moon Kyung Joo, Chan Hyuk Park, Eun Jeong Gong, Cheol Min Shin, Hyun Lim, Hyuk Soon Choi, Miyoung Choi, Sang Hoon Kim, Chul-Hyun Lim, Jeong-Sik Byeon, Ki-Nam Shim, Geun Am Song, Moon Sung Lee, Jong-Jae Park, Oh Young Lee
The Korean Journal of Gastroenterology.2023; 82(3): 107. CrossRef
Incidence of Pneumoperitoneum After Gastrostomy Tube Removal
Anas Mahmoud, Nizar Alyassin, Eyad Baghal, Ruhin Yuridullah, Yana Cavanagh, Matthew A Grossman
Cureus.2023;[Epub] CrossRef
Prevention and management of major complications in percutaneous endoscopic gastrostomy
Kurt Boeykens, Ivo Duysburgh
BMJ Open Gastroenterology.2021; 8(1): e000628. CrossRef
Massive Incidental Pneumoperitoneum in an Amyotrophic Lateral Sclerosis Patient
Jasmin Jaber, Nur Magadle, Lojain Arda, Francisco J Somoza-Cano
Cureus.2021;[Epub] CrossRef
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Jahnvi Dhar, Naveen Kumar, Pankaj Gupta, Rakesh Kochhar, Jayanta Samanta
Journal of Digestive Endoscopy.2021; 12(03): 169. CrossRef
Symptomatic Pneumoperitoneum After Gastrostomy Tube Placement Managed by Pneumocentesis
Tim Brotherton, Anuj Chhaparia, Michael Presti, Gregory Sayuk, Jill Elwing
ACG Case Reports Journal.2021; 8(11): e00700. CrossRef
TWO APPROACHES TO PNEUMOPERITONEUM: SURGERY AND CONSERVATIVE
Şehmus Ölmez, Bünyamin Sarıtaş, Mesut Aydın, Banu Kara
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Diagnosis and treatment of pediatric benign pneumoperitoneum
Shou-Xing Duan, Zong-Bo Sun, Guang-Huan Wang, Jun Zhong, Wen-Hui Ou, Ma-Xian Fu, Fu-Sheng Wang, Shu-Hua Ma, Jian-Hong Li
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Thirty-day mortality after percutaneous gastrostomy by endoscopic versus radiologic placement: a systematic review and meta-analysis
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The role of surgery in the treatment of endoscopic complications
Peter Dixon, Gopal C. Kowdley, Steven Clark Cunningham
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Pneumoperitoneum After Percutaneous Endoscopic Gastrostomy: Does It Have Clinical Significance?
Ju Yup Lee, Kyung Sik Park
Intestinal Research.2015; 13(4): 295. CrossRef

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Is Long-Term Therapy With Thiopurines Effective for Maintaining Remission in Patients With Moderate-To-Severe Ulcerative Colitis?: Seong Ran Jeon, Won Ho Kim; Intest Res 2015;13(3):191-192. Published online June 9, 2015; DOI: https://doi.org/10.5217/ir.2015.13.3.191

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How to Optimally Use Currently Available Drugs in a Therapeutic Algorithm?
You Sun Kim
The Korean Journal of Gastroenterology.2018; 71(2): 74. CrossRef
Clinical Efficacy of Beclomethasone Dipropionate in Korean Patients with Ulcerative Colitis
Yoon Jee Lee, Jae Hee Cheon, Jae Hyun Kim, SunHo Yoo, Hyun Jung Lee, Soo Jung Park, Sung Pil Hong, Tae Il Kim, Won Ho Kim
Yonsei Medical Journal.2017; 58(1): 144. CrossRef

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Author's Reply: Seong Ran Jeon; Intest Res 2015;13(1):99-100. Published online January 29, 2015; DOI: https://doi.org/10.5217/ir.2015.13.1.99

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Double-Balloon Enteroscopy in Elderly Patients: Is It Safe and Useful?: Dae Han Choi, Seong Ran Jeon, Jin-Oh Kim, Hyun Gun Kim, Tae Hee Lee, Woong Cheul Lee, Byung Soo Kang, Jun-Hyung Cho, Yunho Jung, Wan Jung Kim, Bong Min Ko, Joo Young Cho, Joon Seong Lee, Moon Sung Lee; Intest Res 2014;12(4):313-319. Published online October 27, 2014; DOI: https://doi.org/10.5217/ir.2014.12.4.313

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Background/Aims

Providers may be hesitant to perform double-balloon enteroscopy (DBE) in the elderly because the increased number of co-morbidities in this population poses a greater risk of complications resulting from sedation. There are limited data on the use of DBE in the elderly. Here, we assessed the safety and efficacy of DBE in the elderly compared to those in younger patients.

Methods

We retrospectively analyzed the medical records of 158 patients who underwent 218 DBEs. Patients were divided into an elderly group (age ≥65 years; mean 71.4±5.4; n=34; 41 DBEs) and a younger group (age <65 years; mean 39.5±13.5; n=124; 177 DBEs).

Results

In both groups, the most common indication for DBE was obscure gastrointestinal bleeding. Mucosal lesions (33.3% vs. 60.9%; P=0.002) were the most common finding in both groups, followed by tumors (30.8% vs. 14.1%; P=0.036). The elderly were more likely to receive interventional therapy (51.3% vs. 23.5%; P=0.001). The diagnostic yield of DBE was slightly higher in the elderly group (92.3% vs. 86.5%; P=0.422), but was not statistically significant. The therapeutic success rate of DBE was 100% in the elderly group compared to 87.5% in the younger group (P=0.536). The overall DBE complication rate was 1.8% overall, and this rate did not differ significantly between the groups (2.6% vs. 1.7%; P=0.548).

Conclusions

DBE is safe and effective in the elderly, and has a high diagnostic yield and high therapeutic success rate.

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Rebecca K Grant, Alexander R Robertson, Kirsty A Lennon, Eksha Gupta, Ursula E Walton, Ross J Porter, Niall T Burke, Solomon Ong, Atul Anand, Sarah Douglas, Alice Corbett, William M Brindle, Rahul Kalla, John N Plevris
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J.J.E. García-Correa, J.J. Ramírez-García, L.F. García-Contreras, C. Fuentes-Orozco, L. Irusteta-Jiménez, L.R. Michel-Espinoza, A.S. Carballo Uribe, J.A. Torres Chávez, A. González-Ojeda
Revista de Gastroenterología de México.2018; 83(1): 31. CrossRef
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Vijay Pattni, David J Tate, Ana Terlevich, Peter Marden, Steve Hughes
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Hey-Long Ching, Federica Branchi, David S Sanders, David Turnbull, Reena Sidhu
Frontline Gastroenterology.2018; 9(3): 192. CrossRef
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Chen-Wang Chang, Ching-Wei Chang, Wei-Chen Lin, Chia-Hsien Wu, Horng-Yuan Wang, Tsang-En Wang, Cheng-Hsin Chu, Ming-Jen Chen
International Journal of Gerontology.2017; 11(3): 176. CrossRef
Diagnostic yield and safety of double balloon-assisted enteroscopy in the elderly: A systematic review and meta-analysis
Y. Chen, G. Liu, T. Zhang, K. Yang, H. Yu, Y. Tie, J. Liang, J. Zhou, H. Gan
European Geriatric Medicine.2017; 8(4): 354. CrossRef
Clinical outcome after enteroscopy for small bowel angioectasia bleeding: A Korean Associateion for the Study of Intestinal Disease (KASID) multiceter study
Seong Ran Jeon, Jeong‐Sik Byeon, Hyun Joo Jang, Soo Jung Park, Jong Pil Im, Eun Ran Kim, Ja Seol Koo, Bong Min Ko, Dong Kyung Chang, Jin‐Oh Kim, Su Yeon Park
Journal of Gastroenterology and Hepatology.2017; 32(2): 388. CrossRef
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Ahilan Arulanandan, Parambir S Dulai, Siddharth Singh, William J Sandborn, Denise Kalmaz
World Journal of Gastroenterology.2016; 22(40): 8999. CrossRef
Current status and future perspectives of capsule endoscopy
Hyun Joo Song, Ki-Nam Shim
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Author's Reply
Seong Ran Jeon
Intestinal Research.2015; 13(1): 99. CrossRef
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Sook Hee Chung, Sang Un Park, Jae Hee Cheon, Eun Ran Kim, Jeong-Sik Byeon, Byong Duk Ye, Bora Keum, Ki-Nam Shim, Sung-Ae Jung, Jin-Oh Kim, Seong Ran Jeon, Hyun Joo Song, Jeong Seop Moon, Dong Kyung Chang
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Does Metformin Affect The Incidence of Colonic Polyps and Adenomas in Patients with Type 2 Diabetes Mellitus?: Youn Hee Cho, Bong Min Ko, Shin Hee Kim, Yu Sik Myung, Jong Hyo Choi, Jae Pil Han, Su Jin Hong, Seong Ran Jeon, Hyun Gun Kim, Jin Oh Kim, Moon Sung Lee; Intest Res 2014;12(2):139-145. Published online April 29, 2014; DOI: https://doi.org/10.5217/ir.2014.12.2.139

Abstract PDF PubReader

Background/Aims

Colorectal cancer (CRC) develops from colonic adenomas. Type 2 diabetes mellitus (DM) is associated with a higher risk of CRC and metformin decreases CRC risk. However, it is not certain if metformin affects the development of colorectal polyps and adenomas. This study aimed to elucidate if metforminaffects the incidence of colonic polyps and adenomas in patients with type 2 DM.

Methods

Of 12,186 patients with type 2 DM, 3,775 underwent colonoscopy between May 2001 and March 2013. This study enrolled 3,105 of these patients, and divided them in two groups: 912 patients with metformin use and 2,193 patients without metformin use. Patient clinical characteristics, polyp and adenoma detection rate in the two groups were analyzed retrospectively.

Results

The Colorectal polyp detection rate was lower in the metformin group than in the non-meformin group (39.4% vs. 62.4%, P<0.01). Colorectal adenoma detection rate was significantly lower in the metformin group than in the non-metformin group (15.2% vs. 20.5%, P<0.01). Fewer advanced adenomas were detected in the metformin group than in the non-metformin group (12.2% vs. 22%, P<0.01). Multivariate analysis identified age, sex, Body mass index and metformin use as factors associated with polyp incidence, whereas only metforminwas independently associated with decreased adenoma incidence (Odd ratio=0.738, 95% CI=0.554-0.983, P=0.03).

Conclusions

In patients with type 2 DM, metformin reduced the incidence of adenomas that may transform into CRC. Therefore, metformin may be useful for the prevention of CRC in patients with type 2 DM.

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Is Metformin Associated with a Lower Prevalence of Polyps, Adenomas, and Colorectal Carcinoma in Patients with Diabetes Mellitus?
Maria Inês Canha, Gonçalo Ramos, Rita Prata, Pedro Lages Martins, Marta Viúla Ramos, João Coimbra
Journal of Gastrointestinal Cancer.2024; 55(1): 435. CrossRef
Metformin administration in prevention of colorectal polyps in type 2 diabetes mellitus patients
Xiao-Qing Wu, Li-Hua Deng, Qian Xue, Xia Li, Meng-Han Li, Jing-Tong Wang
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Md. Imtiazul Kabir, Robin Kumar, Lakshmi Sai Pratyusha Bugata, Komal Raina
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A Rare Complication in a Patient Irradiated for Cervical Cancer: Seong Ran Jeon; Intest Res 2013;11(4):323-324. Published online October 30, 2013; DOI: https://doi.org/10.5217/ir.2013.11.4.323

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Analysis of Colonoscopy Quality in Clinical Practices of Korea: Cohort Study of Patients Referred to Tertiary Hospital after Colonoscopy Examinations: Chang Gyun Chun, Hyun Gun Kim, Seong Ran Jeon, Bong Min Ko, Byung Hoo Lee, Jin-Oh Kim; Intest Res 2013;11(3):198-203. Published online July 30, 2013; DOI: https://doi.org/10.5217/ir.2013.11.3.198

Abstract PDF

Background/Aims
Although the quality of colonoscopy is considered important to improve screening efficacy, there is little evidence and few statistical reports which properly reflects the colonoscopy quality of clinical practices in Korea. We aimed to investigate the quality indicators of colonoscopy performing in clinical practice. Methods: We analyzed the computerized photo-documentation files of patients who were transferred to tertiary academic hospital from private clinics or primary and secondary hospitals from January 2012 to October 2012. Quality indicators including cecal intubation rate, withdrawal time, bowel preparation status, colonoscopy report form were analyzed. Bowel preparation was assessed by 4 steps on the preparation scale (excellent, good, fair, poor). Results: A total of 198 patients (134 male, 64 female) were enrolled and analyzed. Cecal intubation rate was 91.4% (181/198) and photo-documentation of appendiceal orifice and ileocecal valve was achieved as 84.3% (167/198) and 71.7% (142/198), relatively. Overall, 83.3% of cases were adequate bowel preparation state (excellent 52%, good 31.3%). Withdrawal time could be estimated at 94.4% (187/198) of cases and mean withdrawal time of diagonostic colonoscopy (n=165) was 8.6 minutes. However, the rate of cases which withdrawal time was more than 6 minutes was 69.7% (115/165). Total of 30 institution's colonoscopy report forms were analyzed and among nearly half enrolled institutions (46.6%, 14/30) were just recording patient's information and colonoscopic diagnosis. Conclusions: Considerable portion of colonoscopy examination in the primary clinical practice has been performed with low procedure quality. We thus need careful attention to maintain the quality of colonoscopy in daily practice routines. (Intest Res 2013;11:198-203)

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Choong-Kyun Noh, Kee Myung Lee
Intestinal Research.2018; 16(2): 166. CrossRef
Is Retroflexion Helpful in Detecting Adenomas in the Right Colon?: A Single Center Interim Analysis
Hyun Seok Lee, Seong Woo Jeon
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Author's Reply
Hyun Gun Kim
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The Real State of Colonoscopy Quality of Non-tertiary Hospitals in Korea
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Intestinal Research.2013; 11(4): 327. CrossRef

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Clinical Comparison for Colon Polyps between Right and Left Colon in Koreans: Wook Hyun Um, Hyun Gun Kim, Seong Ran Jeon, Tae Hee Lee, Wan Jung Kim, Bong Min Ko, Jin-Oh Kim, Joo Young Cho, Joon Seong Lee, Moon Sung Lee; Intest Res 2012;10(4):372-378. Published online October 31, 2012; DOI: https://doi.org/10.5217/ir.2012.10.4.372

Abstract PDF

Background/Aims
Comparative studies of colon polyps between right and left colon in Korean population are limited. We investigated the clinical characteristics of the patients according to polyp location and compared the results of the morphological and histological analysis of right and left colon polyps. Methods: The study was performed prospectively for the patients who underwent colon polypectomy for health check-ups in a single tertiary center. The patients were classified into three groups by the location of the polyps: right group (from the cecum to the splenic flexure), left group (from the descending colon to the anus), and total group. The size, the morphology, the location and the pathology of the polyps were evaluated. Results: From June 2010 to June 2011, Overall 2596 polyps from 950 patients (male=646) were analyzed. Colon polyps were right side-shift with increased patients age (P<0.001). The incidence of polyps was most common in sigmoid colon (26.5%). Polyps less than 5 mm size were more common in left colon (P<0.001) and flat polyps larger than 1 cm in right colon (P=0.006), respectively. In histopathological findings, the distribution of advanced adenoma was not different according to the location, however tubular adenomas and serrated adenomas (P<0.001) were more common in right colon. Female was more distributed in right group, respectively (P<0.001). Conclusions: In a single center study, colon polyps were more distributed in right colon with age and in females. Also flat polyps larger than 1cm, tubular adenoma and serrated adenoma were found in larger proportion in right colon. (Intest Res 2012;10:372-378)

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Yoon Jeong Nam, Kyeong Ok Kim, Chan Seo Park, Si Hyung Lee, Byung Ik Jang
The Korean Journal of Internal Medicine.2019; 34(1): 65. CrossRef

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Endoscopic Treatment Strategy for Large Laterally Spreading Tumor: Endoscopic Piecemeal Mucosal Resection or Endoscopic Submucosal Dissection: Sang Goo Kang, Suck-Ho Lee, Seung Kyu Chung, Jae Min Shin, Seong Ran Jeon, Tae Hee Lee, Hyun Gun Kim, Jin Oh Kim; Intest Res 2011;9(3):211-216. Published online December 30, 2011; DOI: https://doi.org/10.5217/ir.2011.9.3.211

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Background/Aims
The therapeutic strategy between endoscopic piecemeal mucosal resection (EPMR) and endoscopic submucosal dissection (ESD) for large laterally spreading tumors (LSTs) has not been clearly defined. The aim of this study was to compare the clinical outcomes between EPMR and ESD in patients with large LST. Methods: From July 2006 to September 2010, 106 patients who underwent endoscopic resection for large (＞20 mm) LSTs were included in our retrospective analysis. Results: Baseline characteristics of the patients and tumors were not different between two groups except for location (EPMR-right colon, ESD-rectum). The en bloc resection rate and complete resection rate were significantly higher in the ESD group than those in the EPMR group (EPMR vs. ESD, 53.5% vs. 88.6, P＜0.01, 45.1% vs. 71.4%, P=0.01, respectively). However, total procedure time was significantly shorter in the EPMR group (21.3 min vs. 44.4 min, P＜0.01). Furthermore, the rates of complication including perforation and bleeding were significantly lower in the EPMR group than those in the ESD group (perforation, 1.4% vs. 11.4%, P=0.02; bleeding, 4.2% vs. 17.1%, P=0.03, respectively). During 19.9 months of follow-up, no significant difference was observed in terms of recurrence (1.5% vs. 3.2%). Non-granular, pseudo-depressed type (LST-PD) showed a significantly higher presence of adenocarcinoma and deeper submucosal invasion than other types of LSTs. Conclusions: The therapeutic strategy for choosing between EPMR and ESD for large LST lesions should be determined based on the macroscopic findings of their subtype. En bloc resection with ESD should be applied to LST-PDs due to their higher rate of submucosal invasion. (Intest Res 2011;9:211-216)

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Long‐term clinical outcomes of endoscopic submucosal dissection for colorectal neoplasia with or without the hybrid technique
DU Kang, JC Park, SW Hwang, SH Park, DH Yang, KJ Kim, BD Ye, SJ Myung, SK Yang, JS Byeon
Colorectal Disease.2020; 22(12): 2008. CrossRef
Current practices in endoscopic submucosal dissection for colorectal neoplasms: a survey of indications among Korean endoscopists
Tae Jun Kim, Eun Ran Kim, Sung Noh Hong, Young-Ho Kim, Dong Kyung Chang
Intestinal Research.2017; 15(2): 228. CrossRef

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Capsule Endoscopy for Suspected Small Bowel Bleeding in Patients with Portal Hypertension: Gang Il Cheon, Jin Oh Kim, Sung Wook Hong, Seong Ran Jeon, Tae Hee Lee, Hyun Gun Kim, Won Young Cho, Wan Jung Kim, Min Jeong Kim, Sung Won Jeong, Jae Young Jang, Bong Min Ko, Joo Young Cho, Joon Seong Lee; Intest Res 2011;9(2):129-138. Published online August 30, 2011; DOI: https://doi.org/10.5217/ir.2011.9.2.129

Abstract PDF: Background/Aims
In Korea, limited data are available on small bowel bleeding in patients with portal hypertension. This study reports on the use of capsule endoscopy in cases of suspected small bowel bleeding in patients with portal hypertension. Methods: Capsule endoscopy was used at our hospital to evaluate small bowel disease in 501 cases from July 2003 to June 2010. Of those cases, nine patients with portal hypertension due to liver cirrhosis with suspected small bowel bleeding were selected for the study. A retrospective analysis was performed using data from medical records. Results: Six of the nine (66.7%) patients were males with an average age of 53.4 years. The average hemoglobin level was 8.1 g/dL. Abnormalities noted during capsule endoscopy included portal hypertensive enteropathy in all nine cases (100%), jejunal varices in four (44.4%), jejunal and ileal angiodysplasia in five (55.5%), multiple small bowel erosions in one (11.1%), granularity of the jejunal mucosa in one (11.1%), and small bowel erythema in three (33.3%). Active bleeding from jejunal varices was detected in two patients (22.2%). Despite having no obvious active bleeding during the capsule endoscopy, four patients (44.4%) were diagnosed with portal hypertensive enteropathy with obscure small bowel bleeding. Conclusions: Capsule endoscopy is a useful diagnostic tool for the evaluation of small bowel bleeding in patients with portal hypertensive enteropathy. Additional prospective and multicenter studies on the use of capsule endoscopy are needed to evaluate the incidence and clinical importance of portal hypertensive enteropathy. (Intest Res 2011;9:129-138)

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