Intestinal Research

Review

IBD

Korean clinical practice guidelines on biologics and small molecules for moderate-to-severe ulcerative colitis: Soo-Young Na, Chang Hwan Choi, Eun Mi Song, Ki Bae Bang, Sang Hyoung Park, Eun Soo Kim, Jae Jun Park, Bora Keum, Chang Kyun Lee, Bo-In Lee, Seung-Bum Ryoo, Seong-Joon Koh, Miyoung Choi, Joo Sung Kim, on behalf of the IBD Research Group of the Korean Association for the Study of Intestinal Diseases; Intest Res 2023;21(1):61-87. Published online May 31, 2022; DOI: https://doi.org/10.5217/ir.2022.00007

Abstract PDF Supplementary Material PubReader ePub

Ulcerative colitis (UC), a relapsing-remitting chronic inflammatory bowel disease (IBD), has a variable natural course but potentially severe disease course. Since the development of anti-tumor necrosis factor (TNF) agents has changed the natural disease course of moderate-to-severe UC, therapeutic options for patients who failed conventional treatments are expanding rapidly. IBD clinical trials have demonstrated the potential efficacy and safety of novel biologics such as anti-integrin α4β7 and anti-interleukin-12/23 monoclonal antibodies and small molecules such as a Janus kinase inhibitor. Anti-TNF biosimilars also have been approved and are widely used in IBD patients. Wise drug choices should be made considering evidence-based efficacy and safety. However, the best position of these drugs remains several questions, with limited data from direct comparative trials. In addition, there are still concerns to be elucidated on the effect of therapeutic drug monitoring and combination therapy with immunomodulators. The appropriate treatment regimens in acute severe UC and the risk of perioperative use of biologics are unclear. As novel biologics and small molecules have been approved in Korea, we present the Korean guidelines for medical management of adult outpatients with moderate-to-severe UC and adult hospitalized patients with acute severe UC, focusing on biologics and small molecules.

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Original Article

The prevalence and clinical characteristics of anemia in Korean patients with inflammatory bowel disease: Dae Sung Lee, Ki Bae Bang, Ji Yeon Kim, Yoon Suk Jung, Jung Ho Park, Hong Joo Kim, Yong Kyun Cho, Chong Il Sohn, Woo Kyu Jeon, Byung Ik Kim, Kyu Young Choi, Dong Il Park; Intest Res 2016;14(1):43-49. Published online January 26, 2016; DOI: https://doi.org/10.5217/ir.2016.14.1.43

Abstract PDF PubReader ePub

<b>Background/Aims</b><br/>

Quality of life is closely related to anemia in patients with inflammatory bowel disease (IBD). Several studies have reported on anemia in patients with IBD in Western countries. This study investigated the prevalence and clinical characteristics of anemia in Korean patients with IBD.

Methods

We reviewed the medical records of 92 patients with ulcerative colitis (UC) and 76 patients with Crohn's disease (CD) who were followed regularly at a single tertiary medical center in Korea between January 2003 and December 2012. Hemoglobin (Hb) thresholds used to define anemia were <13.0 g/dL in men and <12.0 g/dL in women according to the World Health Organization criteria. We chose the lowest Hb level in each year as a representative value because Hb levels changed at each examination and anemia was associated with disease deterioration. The relationship between clinical variables and lowest Hb level was assessed.

Results

The prevalence of anemia was 36.3% in patients with UC and 41.6% in patients with CD. Anemia in patients with CD was associated with hospital admission, 5-aminosalicylate (5-ASA) and infliximab treatment in men. Anemia in patients with UC was associated with hospital admission, oral steroid use, thiopurine and infliximab treatment in men.

Conclusions

The prevalence of anemia in Korean patients with IBD was comparable to that of patients in Western countries. Anemia was associated with male patients with CD who were admitted to the hospital and received medications including 5-ASA and infliximab, and men with UC who were admitted to the hospital and received medications including oral steroids, thiopurine and infliximab.

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Clinical Epidemiology and Global Health.2026; 37: 102262. CrossRef
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Case Report

Perianal Abscess and Proctitis by Klebsiella pneumoniae: Woo Shin Jeong, Sung Youn Choi, Eun Haeng Jeong, Ki Bae Bang, Seung Sik Park, Dae Sung Lee, Dong Il Park, Yoon Suk Jung; Intest Res 2015;13(1):85-89. Published online January 29, 2015; DOI: https://doi.org/10.5217/ir.2015.13.1.85

Abstract PDF PubReader

Klebsiella pneumoniae (K. pneumoniae) can at times cause invasive infections, especially in patients with diabetes mellitus and a history of alcohol abuse. A 61-year-old man with diabetes mellitus and a history of alcohol abuse presented with abdominal and anal pain for two weeks. After admission, he underwent sigmoidoscopy, which revealed multiple ulcerations with yellowish exudate in the rectum and sigmoid colon. The patient was treated with ciprofloxacin and metronidazole. After one week, follow up sigmoidoscopy was performed owing to sustained fever and diarrhea. The lesions were aggravated and seemed webbed in appearance because of damage to the rectal mucosa. Abdominal computed tomography and rectal magnetic resonance imaging were performed, and showed a perianal and perirectal abscess. The patient underwent laparoscopic sigmoid colostomy and perirectal abscess incision and drainage. Extended-spectrum beta-lactamase-producing K. pneumoniae was identified in pus culture. The antibiotics were switched to ertapenem. He improved after surgery and was discharged. K. pneumoniae can cause rapid invasive infection in patients with diabetes and a history of alcohol abuse. We report the first rare case of proctitis and perianal abscess caused by invasive K. pneumoniae infection.

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The Korean Journal of Gastroenterology.2016; 67(4): 212. CrossRef

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Original Article

Prevalence, Clinicopathologic Characteristics, and Predictors of Interval Colorectal Cancers in Korean Population: Chang Joon Kim, Yoon Suk Jung, Jung Ho Park, Hong Joo Kim, Yong Kyun Cho, Chong Il Sohn, Woo Kyu Jeon, Byung Ik Kim, Shin Yeong Lee, Hwa Mok Kim, Ki Bae Bang, Dae Sung Lee, Dong Il Park; Intest Res 2013;11(3):178-183. Published online July 30, 2013; DOI: https://doi.org/10.5217/ir.2013.11.3.178

Abstract PDF

Background/Aims
A subset of patients may develop colorectal cancer after a colonoscopy that was negative for carcinoma. These missed or de novo developed lesions were termed as interval cancers. Many studies regarding interval cancer have been conducted in Western countries, whereas very limited data are available in Asian populations. Therefore, the purpose of this study was to investigate prevalence, clinicopathologic features, and predictors of interval colorectal cancers in the Korean population. Methods: Interval cancer was defined as a cancer that is diagnosed within 5 years of a negative colonoscopy result. Among the patients who were diagnosed colorectal cancers at Kangbuk Samsung Hospital from January 2007 to April 2012, clinicopathologic characteristics of interval cancers were compared with those of sporadic cancers. Results: Among the 785 patients, 482 responded to telephone calls. Of these, 30 (6.2%) developed interval cancers. Finally, 28 patients who had interval cancers were compared with 415 patients who had sporadic cancers. Interval cancer group was significantly younger and more frequent in the right side colon than sporadic cancer group. There was no differences in sex, tumor size, differentiation, and staging between two groups. In multivariate analysis, young age and right side colon cancer were independent factors associated with an interval cancer. Conclusions: A significant proportion of Korean patients developed interval colorectal cancer, especially at the young age and in the proximal colon. (Intest Res 2013;11:178-183)

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The Korean Journal of Internal Medicine.2023; 38(3): 349. CrossRef
Post-colonoscopy Colorectal Cancer: Causes and Prevention of Interval Colorectal Cancer
Jong Yoon Lee, Jong Hoon Lee
The Korean Journal of Gastroenterology.2020; 75(6): 314. CrossRef
Frequency and Characteristics of Interval Colorectal Cancer in Actual Clinical Practice: A KASID Multicenter Study
Kyeong Ok Kim, Kyu Chan Huh, Sung Pil Hong, Won Hee Kim, Hyuk Yoon, Sang Wook Kim, Yeon Soo Kim, Jong Ha Park, Jun Lee, Bum Jae Lee, Young Sook Park
Gut and Liver.2018; 12(5): 537. CrossRef
Molecular Imaging of Colorectal Tumors by Targeting Colon Cancer Secreted Protein-2 (CCSP-2)
Jaeil Kim, Eun-ju Do, Helen Moinova, Sang Mun Bae, Ja Young Kang, Seung-Mo Hong, Stephen P. Fink, Jinmyoung Joo, Young-Ah Suh, Se Jin Jang, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Jaewon Choe, Suk-Kyun Yang, Sanfo
Neoplasia.2017; 19(10): 805. CrossRef
External Validation of the Endoscopic Features of Sessile Serrated Adenomas in Expert and Trainee Colonoscopists
Hyo-Joon Yang, Jeong In Lee, Soo-Kyung Park, Yoon Suk Jung, Jin Hee Sohn, Kyu Yong Choi, Dong Il Park
Clinical Endoscopy.2017; 50(3): 279. CrossRef
Comparative Study on Bowel Preparation Efficacy of Ascorbic Acid Containing Polyethylene Glycol by Adding Either Simethicone or 1 L of Water in Health Medical Examination Patients: A Prospective Randomized Controlled Study
Se Hwan Yeo, Jae Hoon Kwak, Yeo Un Kim, Tae Ho Kwon, Jeong Bae Park, Jun Hyung Park, Yong Kook Lee, Yun Jeong Lim, Chang Heon Yang
The Korean Journal of Gastroenterology.2016; 67(4): 189. CrossRef
Microsatellite Instability Status of Interval Colorectal Cancers in a Korean Population
Kil Woo Lee, Soo-Kyung Park, Hyo-Joon Yang, Yoon Suk Jung, Kyu Yong Choi, Kyung Eun Kim, Kyung Uk Jung, Hyung Ook Kim, Hungdai Kim, Ho-Kyung Chun, Dong Il Park
Gut and Liver.2016; 10(5): 781. CrossRef
Characteristics of and risk factors for colorectal neoplasms in young adults in a screening population
Seung Eun Lee, Hee Bum Jo, Won Gun Kwack, Yun Jin Jeong, Yeo-Jin Yoon, Hyoun Woo Kang
World Journal of Gastroenterology.2016; 22(10): 2981. CrossRef
Randomized Controlled Trial of Sodium Phosphate Tablets versus 2 L Polyethylene Glycol Solution for Bowel Cleansing prior to Colonoscopy
Yun Ho Lee, Seong Yeon Jeong, You Sun Kim, Hye Jin Jung, Min Jung Kwon, Cheol Hun Kwak, Song I Bae, Jeong Seop Moon, Ji Won Kim, Su Hwan Kim, Kook Lae Lee
The Korean Journal of Gastroenterology.2015; 65(1): 27. CrossRef
The Risk of Metachronous Advanced Colorectal Neoplasia Rises in Parallel with an Increasing Number of High-Risk Findings at Baseline
Seung Min Lee, Jeong Hwan Kim, In Kyung Sung, Sung Noh Hong
Gut and Liver.2015; 9(6): 741. CrossRef
Rapidly Growing Interval Colon Cancer
Jae Hyun Kim, Moo In Park
The Korean Journal of Gastroenterology.2015; 65(5): 326. CrossRef
Colonoscopy Quality is the Answer for the Emerging Issue of Interval Cancer
Jae Myung Cha
Intestinal Research.2014; 12(2): 110. CrossRef
Interval Cancers after a Negative Colonoscopy Finding in a Korean Population: A Small Step for Gastroenterologists but One Giant Leap for Koreans
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Intestinal Research.2014; 12(2): 169. CrossRef
Author's Reply
Dong Il Park
Intestinal Research.2014; 12(2): 171. CrossRef
Development and Predictor of Interval Colorectal Cancer
Tae-Oh Kim
Intestinal Research.2013; 11(3): 153. CrossRef
What Matters in Colonoscopy?
Hyun Shig Kim
Annals of Coloproctology.2013; 29(6): 223. CrossRef

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