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Original Article
Inflammatory Bowel Diseases
Long-term outcomes of infliximab in a real-world multicenter cohort of patients with acute severe ulcerative colitis
Shin Ju Oh, Ga Young Shin, Hosim Soh, Jae Gon Lee, Jong Pil Im, Chang Soo Eun, Kang-Moon Lee, Dong Il Park, Dong Soo Han, Hyo Jong Kim, Chang Kyun Lee
Intest Res 2021;19(3):323-331.   Published online August 18, 2020
DOI: https://doi.org/10.5217/ir.2020.00039
AbstractAbstract PDFPubReaderePub
Background/Aims
Infliximab (IFX) has proven effective as rescue therapy in steroid-refractory acute severe ulcerative colitis (ASUC), however, the long-term real-world data are scarce. Our study aimed to assess the long-term treatment outcomes of IFX in a real-life cohort.
Methods
We established a multicenter retrospective cohort of hospitalized patients with ASUC, who met Truelove and Witt’s criteria and received intravenous corticosteroid (IVCS) or IFX during index hospitalization between 2006 and 2016 in 5 university hospitals in Korea. The cohort was systematically followed up until colectomy, death or last follow-up visit.
Results
A total of 296 patients were followed up for a mean of 68.9 ± 44.0 months. During index hospitalization, 49 patients were treated with IFX; as rescue therapy for IVCS failure in 37 and as first-line medical therapy for ASUC in 12. All patients treated with IFX avoided colectomy during index hospitalization. The cumulative rates of rehospitalization and colectomy were 20.4% and 6.1% at 3 months and 39.6% and 18.8% at the end of follow-up, respectively. Patients treated with IFX presented with significantly shorter colectomy-free survival than IVCS responders (P= 0.04, log-rank test). Both cytomegalovirus colitis and Clostridioides difficile infection (CDI) were the significant predictors of colectomy in the overall study cohort (hazard ratios of 6.57 and 4.61, respectively). There were no fatalities.
Conclusions
Our real-world cohort study demonstrated that IFX is an effective therapeutic option in Korean patients with ASUC, irrespective of IFX indication. Aggressive vigilance for cytomegalovirus colitis and CDI is warranted for hospitalized patients with ASUC.

Citations

Citations to this article as recorded by  
  • Factors Associated With Response to Rescue Therapy in Acute Severe Ulcerative Colitis
    Christopher F D Li Wai Suen, Dean Seah, Matthew C Choy, Peter De Cruz
    Inflammatory Bowel Diseases.2024; 30(8): 1389.     CrossRef
  • Tofacitinib in Acute Severe Ulcerative Colitis (TACOS): A Randomized Controlled Trial
    Arshdeep Singh, Manjeet Kumar Goyal, Vandana Midha, Ramit Mahajan, Kirandeep Kaur, Yogesh Kumar Gupta, Dharmatma Singh, Namita Bansal, Ramandeep Kaur, Shivam Kalra, Omesh Goyal, Varun Mehta, Ajit Sood
    American Journal of Gastroenterology.2024; 119(7): 1365.     CrossRef
  • Emergency subtotal colectomy rates in relation to anti-TNF therapy in inflammatory bowel disease patients: comparison of retrospective cohorts
    Saman Sajjadi, Rebecca Svensson Neufert, Emilia Ruhr, Sebastian Tryggmo, Jan Marsal, Pamela Buchwald
    Scandinavian Journal of Gastroenterology.2023; 58(1): 15.     CrossRef
  • The role and prospect of tofacitinib in patients with ulcerative colitis
    Jun Lee
    Intestinal Research.2023; 21(1): 168.     CrossRef
  • Risks of colorectal cancer and biliary cancer according to accompanied primary sclerosing cholangitis in Korean patients with ulcerative colitis: a nationwide population-based study
    Eun Hye Oh, Ye-Jee Kim, Minju Kim, Seung Ha Park, Tae Oh Kim, Sang Hyoung Park
    Intestinal Research.2023; 21(2): 252.     CrossRef
  • Rescue Therapies for Steroid-refractory Acute Severe Ulcerative Colitis: A Review
    Javier P Gisbert, María José García, María Chaparro
    Journal of Crohn's and Colitis.2023; 17(6): 972.     CrossRef
  • The Efficacy of Currently Licensed Biologics for Treatment of Ulcerative Colitis: A Literature Review
    Humza Awan, Urooj Fatima, Ryan Eaw, Naomi Knox, Laith Alrubaiy
    Cureus.2023;[Epub]     CrossRef
  • Reviewing not Homer’s Iliad, but “Kai Bao Ben Cao”: indigo dye—the past, present, and future
    Yusuke Yoshimatsu, Tomohisa Sujino, Takanori Kanai
    Intestinal Research.2023; 21(2): 174.     CrossRef
  • Concomitant ankylosing spondylitis can increase the risk of biologics or small molecule therapies to control inflammatory bowel disease
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    Intestinal Research.2023; 21(2): 244.     CrossRef
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    Eun Jin Yoo, Sang-Hoon Cho, Soo Jung Park, Tae Il Kim, Won Ho Kim, Jae Hee Cheon
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    Bulletin of Problems Biology and Medicine.2023; 1(3): 28.     CrossRef
  • Comparison of 1-Year Colectomy Risk Between the US and Korean Patients with Acute Severe Ulcerative Colitis: A Propensity Score Matching Analysis
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    Digestive Diseases and Sciences.2022; 67(7): 2866.     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
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    Chan Hyuk Park, Jung Ho Park, Yoon Suk Jung
    Journal of Personalized Medicine.2022; 12(3): 507.     CrossRef
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    The Korean Journal of Internal Medicine.2022; 37(5): 895.     CrossRef
  • Oral beclomethasone dipropionate as an add-on therapy and response prediction in Korean patients with ulcerative colitis
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    The Korean Journal of Internal Medicine.2022; 37(6): 1140.     CrossRef
  • Progress in Diagnosis and Treatment of Ulcerative Colitis with Cytomegalovirus Infection
    海丽 吴
    Advances in Clinical Medicine.2022; 12(08): 7627.     CrossRef
  • Viral Hepatitis in Patients with Inflammatory Bowel Disease
    Seung Hwan Shin, Sang Hyoung Park
    The Korean Journal of Gastroenterology.2022; 80(2): 51.     CrossRef
  • Improvement in Medication Adherence after Pharmacist Intervention Is Associated with Favorable Clinical Outcomes in Patients with Ulcerative Colitis
    Jae Song Kim, Min Jung Geum, Eun Sun Son, Yun Mi Yu, Jae Hee Cheon, Kyeng Hee Kwon
    Gut and Liver.2022; 16(5): 736.     CrossRef
  • Effectiveness and Safety of Golimumab in Patients with Ulcerative Colitis: A Multicenter, Prospective, Postmarketing Surveillance Study
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    Gut and Liver.2022; 16(5): 764.     CrossRef
  • Physician education can minimize inappropriate steroid use in patients with inflammatory bowel disease: the ACTION study
    Yehyun Park, Chang Hwan Choi, Hyun Soo Kim, Hee Seok Moon, Do Hyun Kim, Jin Ju Kim, Dennis Teng, Dong Il Park
    Intestinal Research.2022; 20(4): 452.     CrossRef
  • Optimal Management of Acute Severe Ulcerative Colitis (ASUC): Challenges and Solutions
    Tom Holvoet, Triana Lobaton, Pieter Hindryckx
    Clinical and Experimental Gastroenterology.2021; Volume 14: 71.     CrossRef
  • Pharmacogenetics-based personalized treatment in patients with inflammatory bowel disease: A review
    Ji Young Chang, Jae Hee Cheon
    Precision and Future Medicine.2021; 5(4): 151.     CrossRef
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Corrigenda and Errata
Corrigendum: Tofacitinib induction and maintenance therapy in East Asian patients with active ulcerative colitis: subgroup analyses from three phase 3 multinational studies
Satoshi Motoya, Mamoru Watanabe, Hyo Jong Kim, Young Ho Kim, Dong Soo Han, Hirotoshi Yuasa, Junichi Tabira, Naoki Isogawa, Shoko Arai, Isao Kawaguchi, Toshifumi Hibi
Intest Res 2018;16(3):499-501.   Published online July 27, 2018
DOI: https://doi.org/10.5217/ir.2018.16.3.499
PDFPubReaderePub

Citations

Citations to this article as recorded by  
  • Post-inflammatory Abdominal Pain in Patients with Inflammatory Bowel Disease During Remission: A Comprehensive Review
    Kazuya Takahashi, Iman Geelani Khwaja, Jocelyn Rachel Schreyer, David Bulmer, Madusha Peiris, Shuji Terai, Qasim Aziz
    Crohn's & Colitis 360.2021;[Epub]     CrossRef
  • Two cases in which tofacitinib effectively treated both ulcerative colitis and alopecia areata
    Oki Kikuchi, Daisuke Saito, Miki Miura, Haruka Wada, Ryo Ozaki, Sotaro Tokunaga, Shintaro Minowa, Masahiro Fukuyama, Tatsuya Mitsui, Akihito Sakuraba, Mari Hayashida, Jun Miyoshi, Minoru Matsuura, Manabu Ohyama, Tadakazu Hisamatsu
    Clinical Journal of Gastroenterology.2020; 13(5): 788.     CrossRef
  • Tuberculosis and targeted synthetic or biologic DMARDs, beyond tumor necrosis factor inhibitors
    Gerasimos Evangelatos, Vasiliki Koulouri, Alexios Iliopoulos, George E Fragoulis
    Therapeutic Advances in Musculoskeletal Disease.2020;[Epub]     CrossRef
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    Peng Li, Xin Ge, Hong-Li Wu
    Main Group Chemistry.2019; 18(2): 63.     CrossRef
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  • 68 Download
  • 5 Web of Science
  • 4 Crossref
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Focused Review: Colorectal Cancer
Colorectal neoplasia
Intestinal microbiota, chronic inflammation, and colorectal cancer
Chan Hyuk Park, Chang Soo Eun, Dong Soo Han
Intest Res 2018;16(3):338-345.   Published online July 27, 2018
DOI: https://doi.org/10.5217/ir.2018.16.3.338
AbstractAbstract PDFPubReaderePub

In addition to genetic and epigenetic factors, various environmental factors, including diet, play important roles in the development of colorectal cancer (CRC). Recently, there is increasing interest in the intestinal microbiota as an environmental risk factor for CRC, because diet also influences the composition of the intestinal microbiota. The human intestinal microbiota comprises about 100 trillion microbes. This microbiome thrives on undigested dietary residues in the intestinal lumen and produces various metabolites. It is well known that the dietary risk factors for CRC are mediated by dysbiosis of the intestinal microbiota and their metabolites. In this review, we describe the bacterial taxa associated with CRC, including Fusobacterium nucleatum, enterotoxigenic Bacteroides fragilis, Escherichia coli, and butyrate-producing bacteria. We also discuss the host-diet interaction in colorectal carcinogenesis.

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Original Article
IBD
Tofacitinib induction and maintenance therapy in East Asian patients with active ulcerative colitis: subgroup analyses from three phase 3 multinational studies
Satoshi Motoya, Mamoru Watanabe, Hyo Jong Kim, Young Ho Kim, Dong Soo Han, Hirotoshi Yuasa, Junichi Tabira, Naoki Isogawa, Shoko Arai, Isao Kawaguchi, Toshifumi Hibi
Intest Res 2018;16(2):233-245.   Published online April 30, 2018
DOI: https://doi.org/10.5217/ir.2018.16.2.233
AbstractAbstract PDFSupplementary MaterialPubReaderePub
<b>Background/Aims</b><br/>

Tofacitinib is an oral, small-molecule Janus kinase inhibitor being investigated for ulcerative colitis (UC). In OCTAVE Induction 1 and 2, patients with moderately to severely active UC received placebo or tofacitinib 10 mg twice daily (BID) for 8 weeks. Clinical responders in OCTAVE Induction were re-randomized to 52 weeks' therapy with placebo, tofacitinib 5 mg BID, or tofacitinib 10 mg BID.

Methods

We conducted post-hoc efficacy and safety analyses of East Asian patients in OCTAVE Induction 1 and 2 and OCTAVE Sustain.

Results

A total of 121 East Asian (Japan, Korea, and Taiwan) patients were randomized in OCTAVE Induction 1 and 2 (placebo, n=26; tofacitinib 10 mg BID, n=95), and 63 in OCTAVE Sustain (placebo, n=20; tofacitinib 5 mg BID, n=22; tofacitinib 10 mg BID, n=21). At week 8 of OCTAVE Induction 1 and 2, 18.9% of patients (18/95) achieved remission with tofacitinib 10 mg BID versus 3.8% (1/26) with placebo. In OCTAVE Sustain, the week 52 remission rates were 45.5% (10/22), 47.6% (10/21), and 15.0% (3/20) with 5 mg BID, 10 mg BID, and placebo, respectively. Adverse event rates were similar between groups in OCTAVE Induction and numerically higher with tofacitinib in OCTAVE Sustain. Serious adverse event rates were similar across groups in all studies. Infections were numerically more frequent with tofacitinib than placebo. Increases in serum lipid levels were observed with tofacitinib.

Conclusions

In East Asian patients with UC, tofacitinib demonstrated numerically greater efficacy versus placebo as induction and maintenance therapy, with a safety profile consistent with the global study population. ClinicalTrials.gov: NCT01465763; NCT01458951; NCT01458574.

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Special Review
IBD
Asian Organization for Crohn's and Colitis and Asia Pacific Association of Gastroenterology consensus on tuberculosis infection in patients with inflammatory bowel disease receiving anti-tumor necrosis factor treatment. Part 1: risk assessment
Dong Il Park, Tadakazu Hisamatsu, Minhu Chen, Siew Chien Ng, Choon Jin Ooi, Shu Chen Wei, Rupa Banerjee, Ida Normiha Hilmi, Yoon Tae Jeen, Dong Soo Han, Hyo Jong Kim, Zhihua Ran, Kaichun Wu, Jiaming Qian, Pin-Jin Hu, Katsuyoshi Matsuoka, Akira Andoh, Yasuo Suzuki, Kentaro Sugano, Mamoru Watanabe, Toshifumi Hibi, Amarender S. Puri, Suk-Kyun Yang
Intest Res 2018;16(1):4-16.   Published online January 18, 2018
DOI: https://doi.org/10.5217/ir.2018.16.1.4
AbstractAbstract PDFPubReaderePub

Because anti-tumor necrosis factor (anti-TNF) therapy has become increasingly popular in many Asian countries, the risk of developing active tuberculosis (TB) among anti-TNF users may raise serious health problems in this region. Thus, the Asian Organization for Crohn's and Colitis and the Asia Pacific Association of Gastroenterology have developed a set of consensus statements about risk assessment, detection and prevention of latent TB infection, and management of active TB infection in patients with inflammatory bowel disease (IBD) receiving anti-TNF treatment. Twenty-three consensus statements were initially drafted and then discussed by the committee members. The quality of evidence and the strength of recommendations were assessed by using the Grading of Recommendations Assessment, Development, and Evaluation methodology. Web-based consensus voting was performed by 211 IBD specialists from 9 Asian countries concerning each statement. A consensus statement was accepted if at least 75% of the participants agreed. Part 1 of the statements comprised 2 parts: risk of TB infection Recommendaduring anti-TNF therapy, and screening for TB infection prior to commencing anti-TNF therapy. These consensus statements will help clinicians optimize patient outcomes by reducing the morbidity and mortality related to TB infections in patients with IBD receiving anti-TNF treatment.

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Close layer
Special Review: Consensus on TB in IBD
IBD
Asian Organization for Crohn's and Colitis and Asia Pacific Association of Gastroenterology consensus on tuberculosis infection in patients with inflammatory bowel disease receiving anti-tumor necrosis factor treatment. Part 2: management
Dong Il Park, Tadakazu Hisamatsu, Minhu Chen, Siew Chien Ng, Choon Jin Ooi, Shu Chen Wei, Rupa Banerjee, Ida Normiha Hilmi, Yoon Tae Jeen, Dong Soo Han, Hyo Jong Kim, Zhihua Ran, Kaichun Wu, Jiaming Qian, Pin-Jin Hu, Katsuyoshi Matsuoka, Akira Andoh, Yasuo Suzuki, Kentaro Sugano, Mamoru Watanabe, Toshifumi Hibi, Amarender S. Puri, Suk-Kyun Yang
Intest Res 2018;16(1):17-25.   Published online January 18, 2018
DOI: https://doi.org/10.5217/ir.2018.16.1.17
AbstractAbstract PDFPubReaderePub

Because anti-tumor necrosis factor (anti-TNF) therapy has become increasingly popular in many Asian countries, the risk of developing active tuberculosis (TB) among anti-TNF users may raise serious health problems in this region. Thus, the Asian Organization for Crohn's and Colitis and the Asia Pacific Association of Gastroenterology have developed a set of consensus statements about risk assessment, detection and prevention of latent TB infection, and management of active TB infection in patients with inflammatory bowel disease (IBD) receiving anti-TNF treatment. Twenty-three consensus statements were initially drafted and then discussed by the committee members. The quality of evidence and the strength of recommendations were assessed by using the Grading of Recommendations Assessment, Development, and Evaluation methodology. Web-based consensus voting was performed by 211 IBD specialists from 9 Asian countries concerning each statement. A consensus statement was accepted if at least 75% of the participants agreed. Part 2 of the statements comprised 3 parts: management of latent TB in preparation for anti-TNF therapy, monitoring during anti-TNF therapy, and management of an active TB infection after anti-TNF therapy. These consensus statements will help clinicians optimize patient outcomes by reducing the morbidity and mortality related to TB infections in patients with IBD receiving anti-TNF treatment.

Citations

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Original Article
Endoscopy
Three-year colonoscopy surveillance after polypectomy in Korea: a Korean Association for the Study of Intestinal Diseases (KASID) multicenter prospective study
Won Seok Choi, Dong Soo Han, Chang Soo Eun, Dong Il Park, Jeong-Sik Byeon, Dong-Hoon Yang, Sung-Ae Jung, Sang Kil Lee, Sung Pil Hong, Cheol Hee Park, Suck-Ho Lee, Jeong-Seon Ji, Sung Jae Shin, Bora Keum, Hyun Soo Kim, Jung Hye Choi, Sin-Ho Jung
Intest Res 2018;16(1):126-133.   Published online January 18, 2018
DOI: https://doi.org/10.5217/ir.2018.16.1.126
AbstractAbstract PDFPubReaderePub
<b>Background/Aims</b><br/>

Colonoscopic surveillance is currently recommended after polypectomy owing to the risk of newly developed colonic neoplasia. However, few studies have investigated colonoscopy surveillance in Asia. This multicenter and prospective study was undertaken to assess the incidence of advanced adenoma based on baseline adenoma findings at 3 years after colonoscopic polypectomy.

Methods

A total of 1,323 patients undergoing colonoscopic polypectomy were prospectively assigned to 3-year colonoscopy surveillance at 11 tertiary endoscopic centers. Relative risks for advanced adenoma after 3 years were calculated according to baseline adenoma characteristics.

Results

Among 1,323 patients enrolled, 387 patients (29.3%) were followed up, and the mean follow-up interval was 31.0±9.8 months. The percentage of patients with advanced adenoma on baseline colonoscopy was higher in the surveillance group compared to the non-surveillance group (34.4% vs. 25.7%). Advanced adenoma recurrence was observed in 17 patients (4.4%) at follow-up. The risk of advanced adenoma recurrence was 2 times greater in patients with baseline advanced adenoma than in those with baseline non-advanced adenoma, though the difference was not statistically significant (6.8% [9/133] vs. 3.1% [8/254], P=0.09). Advanced adenoma recurrence was observed only in males and in subjects aged ≥50 years. In contrast, adenoma recurrence was observed in 187 patients (48.3%) at follow-up. Male sex, older age (≥50 years), and multiple adenomas (≥3) at baseline were independent risk factors for adenoma recurrence.

Conclusions

A colonoscopy surveillance interval of 3 years in patients with baseline advanced adenoma can be considered appropriate.

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Review
Second Korean guidelines for the management of ulcerative colitis
Chang Hwan Choi, Won Moon, You Sun Kim, Eun Soo Kim, Bo-In Lee, Yunho Jung, Yong Sik Yoon, Heeyoung Lee, Dong Il Park, Dong Soo Han
Intest Res 2017;15(1):7-37.   Published online January 31, 2017
DOI: https://doi.org/10.5217/ir.2017.15.1.7
AbstractAbstract PDFPubReaderePub

Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by a relapsing and remitting course. The direct and indirect costs of the treatment of UC are high, and the quality of life of patients is reduced, especially during exacerbation of the disease. The incidence and prevalence of UC in Korea are still lower than those of Western countries, but have been rapidly increasing during the past decades. Various medical and surgical therapies, including biologics, are currently used for the management of UC. However, many challenging issues exist, which sometimes lead to differences in practice between clinicians. Therefore, the IBD study group of the Korean Association for the Study of Intestinal Diseases established the first Korean guidelines for the management of UC in 2012. This is an update of the first guidelines. It was generally made by the adaptation of several foreign guidelines as was the first edition, and encompasses treatment of active colitis, maintenance of remission, and indication of surgery for UC. The specific recommendations are presented with the quality of evidence and classification of recommendations.

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Original Articles
The submucosal fibrosis: what does it mean for colorectal endoscopic submucosal dissection?
Eun Kyoung Kim, Dong Soo Han, Youngouk Ro, Chang Soo Eun, Kyo-Sang Yoo, Young-Ha Oh
Intest Res 2016;14(4):358-364.   Published online October 17, 2016
DOI: https://doi.org/10.5217/ir.2016.14.4.358
AbstractAbstract PDFPubReader
<b>Background/Aims</b><br/>

Endoscopic submucosal dissection (ESD) allows removal of colorectal epithelial neoplasms en bloc regardless of size. Colorectal ESD is a difficult procedure because of technical difficulties and risks of complications. This study aimed to assess the relationship between ESD outcome and degree of submucosal fibrosis.

Methods

Patients with colorectal tumors undergoing ESD and their medical records were reviewed retrospectively. The degree of submucosal fibrosis was classified into three types. The relationship between ESD outcome and degree of submucosal fibrosis was analyzed.

Results

ESD was performed in 158 patients. Thirty-eight cases of F0 (no) fibrosis (24.1%) and 46 cases of F2 (severe) fibrosis (29.1%) were observed. Complete resection was achieved for 138 lesions (87.3%). Multivariate analysis demonstrated that submucosal invasion of tumor and histology of carcinoma were independent risk factors for F2 fibrosis. Severe fibrosis was an independent risk factor for incomplete resection.

Conclusions

Severe fibrosis is an important factor related to incomplete resection during colorectal ESD. In cases of severe fibrosis, the rate of complete resection was low even when ESD was performed by an experienced operator. Evaluation of submucosal fibrosis may be helpful to predict the submucosal invasion of tumors and technical difficulties in ESD.

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  • Risk Factors for Post-Endoscopic Submucosal Dissection Electrocoagulation Syndrome in Patients with Colorectal Neoplasms: A Multicenter, Large-Scale, Retrospective Cohort Study by the Honam Association for the Study of Intestinal Disease (HASID)
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Quality of care in inflammatory bowel disease in Asia: the results of a multinational web-based survey in the 2nd Asian Organization of Crohn's and Colitis (AOCC) meeting in Seoul
Hye Kyung Song, Kang-Moon Lee, Sung-Ae Jung, Sung Noh Hong, Dong Soo Han, Suk-Kyun Yang
Intest Res 2016;14(3):240-247.   Published online June 27, 2016
DOI: https://doi.org/10.5217/ir.2016.14.3.240
AbstractAbstract PDFPubReaderePub
<b>Background/Aims</b><br/>

The quality of care in inflammatory bowel disease (IBD) has not been systematically estimated. The aim of this study was to investigate the current status of quality of IBD care in Asian countries.

Methods

A questionnaire-based survey was conducted between March 2014 and May 2014. The questionnaire was adopted from "An adult inflammatory bowel disease physician performance measure set" developed by the American Gastroenterological Association. If the respondent executed the performance measure in more than 70% of patients, the measure was regarded as well performed.

Results

A total of 353 medical doctors from Asia completed the survey (116 from Korea, 114 from China, 88 from Japan, 17 from Taiwan, 8 from Hong-Kong, 4 from India, 3 from Singapore, and 1 each from the Philippines, Malaysia and Indonesia). The delivery of performance measures, however, varied among countries. The documentation of IBD and tuberculosis screening before anti-tumor necrosis factor therapy were consistently performed well, while pneumococcal immunization and prophylaxis of venous thromboembolisms in hospitalized patients were performed less frequently in all countries. Physician awareness was positively associated with the delivery of performance measures. Variations were also noted in reasons for non-performance or low performance of quality measures, and the two primary reasons cited were consideration of the measure to be unimportant and lack of time.

Conclusions

The delivery of performance measures varies among physicians in Asian countries, and reflects variations in the quality of care among the countries. This variation should be recognized to improve the quality of care in Asian countries.

Citations

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    Yu Kyung Jun, Seong-Joon Koh, Dae Seong Myung, Sang Hyoung Park, Choon Jin Ooi, Ajit Sood, Jong Pil Im
    Intestinal Research.2023; 21(3): 353.     CrossRef
  • Treatment of inflammatory bowel disease–Asian perspectives: the results of a multinational web-based survey in the 8th Asian Organization for Crohn’s and Colitis meeting
    Eun Mi Song, Soo-Young Na, Sung Noh Hong, Siew Chien Ng, Tadakazu Hisamatsu, Byong Duk Ye
    Intestinal Research.2023; 21(3): 339.     CrossRef
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    Joyce Wing Yan Mak, Agnes Hiu Yan Ho, Siew Chien Ng
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    Yunho Jung
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    Lorant Gonczi, Zsuzsanna Kurti, Petra Anna Golovics, Barbara Dorottya Lovasz, Orsolya Menyhart, Anna Seres, Liza Dalma Sumegi, Alexander Gal, Akos Ilias, Papp Janos, Krisztina Barbara Gecse, Talat Bessisow, Waqqas Afif, Alain Bitton, Zsuzsanna Vegh, Peter
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Gastric lesions in patients with Crohn's disease in Korea: a multicenter study
Hoonsub So, Byong Duk Ye, Young Soo Park, Jihun Kim, Joo Sung Kim, Won Moon, Kang-Moon Lee, You Sun Kim, Bora Keum, Seong-Eun Kim, Kyeong Ok Kim, Eun Soo Kim, Chang Kyun Lee, Sung Pil Hong, Jong Pil Im, Ja Seol Koo, Chang Hwan Choi, Jeong Eun Shin, Bo In Lee, Kyu Chan Huh, Young-Ho Kim, Hyun-Soo Kim, Young Sook Park, Dong Soo Han
Intest Res 2016;14(1):60-68.   Published online January 26, 2016
DOI: https://doi.org/10.5217/ir.2016.14.1.60
AbstractAbstract PDFPubReaderePub
<b>Background/Aims</b><br/>

Gastric pathology and Helicobacter pylori (H. pylori) infection among Asian patients with Crohn's disease (CD) are still unclear. We evaluated gastric histologic features and frequency of H. pylori infection in Korean patients with CD.

Methods

Among 492 patients with CD receiving upper gastrointestinal (GI) endoscopic evaluation in 19 Korean hospitals, we evaluated the endoscopic findings and gastric histopathologic features of 47 patients for our study. Histopathologic classification was performed using gastric biopsy tissues, and H. pylori infection was determined using the rapid urease test and histology.

Results

There were 36 men (76.6%), and the median age of patients at the time of upper GI endoscopy was 23.8 years (range, 14.2–60.5). For CD phenotype, ileocolonic disease was observed in 38 patients (80.9%), and non-stricturing, non-penetrating disease in 31 patients (66.0%). Twenty-eight patients (59.6%) complained of upper GI symptoms. Erosive gastritis was the most common gross gastric feature (66.0%). Histopathologically, H. pylori-negative chronic active gastritis (38.3%) was the most frequent finding. H. pylori testing was positive in 11 patients (23.4%), and gastric noncaseating granulomata were detected in 4 patients (8.5%). Gastric noncaseating granuloma showed a statistically significant association with perianal abscess/fistula (P=0.0496).

Conclusions

H. pylori-negative chronic active gastritis appears to be frequent among Korean patients with CD. The frequency of H. pylori infection was comparable with previous studies. An association with perianal complications suggests a prognostic value for gastric noncaseating granuloma in patients with CD.

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    Katarzyna Graca-Pakulska, Wojciech Błogowski, Iwona Zawada, Anna Deskur, Krzysztof Dąbkowski, Elżbieta Urasińska, Teresa Starzyńska
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Special Review
Inflammatory Bowel Disease Cohort Studies in Korea: Present and Future
Jung Won Lee, Jong Pil Im, Jae Hee Cheon, You Sun Kim, Joo Sung Kim, Dong Soo Han
Intest Res 2015;13(3):213-218.   Published online June 9, 2015
DOI: https://doi.org/10.5217/ir.2015.13.3.213
AbstractAbstract PDFPubReader

Inflammatory bowel disease (IBD) is defined as a chronic and relapsing inflammatory disorder of the intestine. Intestinal inflammation in IBD has been proposed to be attributable to the interplay between microbial, genetic, environmental, and immunological factors. The incidence and prevalence rates of IBD are rapidly increasing apparently in other parts of the world, with dramatic increases especially in East Asia. Generally, cohort studies are useful for estimating the incidence, prevalence, natural course, prognosis, and risk factors of diseases. In particular, cohort studies performed in Western countries have well described the prevalence, risk factors, and natural course of IBD and investigated its genetic pathophysiology. However, the outcomes of IBD cohort studies performed in Korea are not as persuasive as those of Western studies because of the relatively low prevalence of IBD and short follow-up periods of the cohorts in Korea. Despite this critical limitation, members of the Korean Association for the Study of Intestinal Diseases have demonstrated outstanding results. Some unique features of IBD patients in Korea are well demonstrated, such as thiopurine-induced leukopenia or risks of opportunistic tuberculosis infection in patients receiving tumor necrosis factor-α inhibitors. In this review, the present authors summarized the key points of the results of the cohort studies performed in Korea and explored future perspectives.

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Review
Current Status and Prospects of Intestinal Microbiome Studies
Dong Soo Han
Intest Res 2014;12(3):178-183.   Published online July 25, 2014
DOI: https://doi.org/10.5217/ir.2014.12.3.178
AbstractAbstract PDFPubReaderePub

The incidence and prevalence of inflammatory bowel disease (IBD) in Asia has witnessed a rapid increase within a few decades. The genetic susceptibility and epidemiologic backgrounds in the Asian population have been found to be different from that of Western populations. There is an extensive crosstalk between gut microbiota and human hosts, with evidence of reciprocal interactions. It is well known that gut microbiota can affect the host immune system and in turn, host genetic backgrounds can affect gut microbiota reciprocally. Evidences have implicated gut microbes in the development of IBD, but no causative microorganisms have been identified. Recent advances in sequencing technology and computational analysis have now made identification of complex gut microbiomes accessible. Further research targeting gut microbiota could help in identifying biomarkers to predict clinical response, and therapeutic modalities that might affect their resilience.

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Commentary
Crohn's Disease Clinical Network and Cohort (CONNECT) Study: The First Step Toward Nationwide Multicenter Research of Crohn's Disease in Korea
Jae Hee Cheon, You Sun Kim, Byong Duk Ye, Kang Moon Lee, Young Ho Kim, Joo Sung Kim, Dong Soo Han, Won Ho Kim
Intest Res 2014;12(3):173-175.   Published online July 25, 2014
DOI: https://doi.org/10.5217/ir.2014.12.3.173
PDFPubReaderePub

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Original Article
Visceral Fat as a Useful Parameter in the Differential Diagnosis of Crohn's Disease and Intestinal Tuberculosis
Jun Kwon Ko, Hang Lak Lee, Jin Ok Kim, Soon Young Song, Kang Nyeong Lee, Dae Won Jun, Oh Young Lee, Dong Soo Han, Byung Chul Yoon, Ho Soon Choi, Joon Soo Hahm, Sang-Yeon Kim
Intest Res 2014;12(1):42-47.   Published online January 28, 2014
DOI: https://doi.org/10.5217/ir.2014.12.1.42
AbstractAbstract PDFPubReader
<b>Background/Aims</b><br/>

Because of the similarities in the clinical presentations of Crohn's disease (CD) and intestinal tuberculosis (ITB), differential diagnosis is critical. Mesenteric adipose tissue hypertrophy and creeping fat are characteristic features of CD. The purpose of this study was to assess the usefulness of visceral fat for the differential diagnosis of CD and ITB.

Methods

We conducted a retrospective review of 50 patients with findings of CD or ITB between January 2005 and July 2008. Abdominal computed tomography (CT) was performed on all subjects during their first evaluation. The abdominal fat area was assessed using quantitative abdominal CT.

Results

The ratio of visceral fat to total fat (VF/TF) was significantly higher in male CD patients than in male ITB patients. The ratio of visceral fat to subcutaneous fat (VF/SF) was also higher in CD patients than in patients with ITB. For a VF/TF cut-off value of 0.46, the sensitivity and specificity for the diagnosis of CD were 42.1% and 93.3% respectively, with positive and negative predictive values of 88.9% and 56.0%, respectively.

Conclusion

Measurement of the abdominal fat area using CT can be clinically useful for the differential diagnosis of CD and ITB.

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    Saurabh Kedia, Prasenjit Das, Kumble Seetharama Madhusudhan, Siddhartha Dattagupta, Raju Sharma, Peush Sahni, Govind Makharia, Vineet Ahuja
    World Journal of Gastroenterology.2019; 25(4): 418.     CrossRef
  • The Adipokine Metrnl Ameliorates Chronic Colitis in Il-10–/– Mice by Attenuating Mesenteric Adipose Tissue Lesions During Spontaneous Colitis
    Lugen Zuo, Sitang Ge, Yuanyuan Ge, Jingjing Li, Bing Zhu, Zongbing Zhang, Congqiao Jiang, Jing Li, Suanhu Wang, Mulin Liu, Shiqing Li, Rong Wu, Jianguo Hu
    Journal of Crohn's and Colitis.2019; 13(7): 931.     CrossRef
  • Indian guidelines on imaging of the small intestine in Crohn’s disease: A joint Indian Society of Gastroenterology and Indian Radiology and Imaging Association consensus statement
    Saurabh Kedia, Raju Sharma, Govind Makharia, Vineet Ahuja, Devendra Desai, Devasenathipathy Kandasamy, Anu Eapen, Karthik Ganesan, Uday C Ghosha, Naveen Kalra, R Karthikeyan, Kumble Seetharama Madhusudhan, Mathew Philip, Amarender Puri, Sunil Puri, Saroj
    Indian Journal of Radiology and Imaging.2019; 29(02): 111.     CrossRef
  • Serum proteome profiles to differentiate Crohn disease from intestinal tuberculosis and primary intestinal lymphoma
    Longgui Ning, Guodong Shan, Zeyu Sun, Xinhe Lou, Fenming Zhang, Sha Li, Haojie Du, Jinghua Yu, Hongtan Chen, Guoqiang Xu
    Medicine.2019; 98(50): e18304.     CrossRef
  • Creeping fat in patients with ileo‐colonic Crohn's disease correlates with disease activity and severity of inflammation: A preliminary study using energy spectral computed tomography
    Qi Feng, Xi Tao Xu, Yi Zhou, Yun Qi Yan, Zhi Hua Ran, Jiong Zhu
    Journal of Digestive Diseases.2018; 19(8): 475.     CrossRef
  • Making a Positive Diagnosis of Intestinal Tuberculosis with the Aid of New Biologic and Histologic Features: How Far Have We Reached?
    Vatsal Mehta, Devendra Desai, Philip Abraham, Camilla Rodrigues
    Inflammatory Intestinal Diseases.2018; 3(4): 155.     CrossRef
  • Accuracy of computed tomographic features in differentiating intestinal tuberculosis from Crohn's disease: a systematic review with meta-analysis
    Saurabh Kedia, Raju Sharma, Vishnubhatla Sreenivas, Kumble Seetharama Madhusudhan, Vishal Sharma, Sawan Bopanna, Venigalla Pratap Mouli, Rajan Dhingra, Dawesh Prakash Yadav, Govind Makharia, Vineet Ahuja
    Intestinal Research.2017; 15(2): 149.     CrossRef
  • Development and validation of visceral fat quantification as a surrogate marker for differentiation of Crohn's disease and intestinal tuberculosis
    Dawesh Prakash Yadav, Kumble Seetharama Madhusudhan, Saurabh Kedia, Raju Sharma, Venigalla Pratap Mouli, Sawan Bopanna, Rajan Dhingra, Rajesh Pradhan, Sandeep Goyal, Vishnubhatla Sreenivas, Naval K Vikram, Govind Makharia, Vineet Ahuja
    Journal of Gastroenterology and Hepatology.2017; 32(2): 420.     CrossRef
  • Imaging of the small intestine in Crohn’s disease: Joint position statement of the Indian Society of Gastroenterology and Indian Radiological and Imaging Association
    Saurabh Kedia, Raju Sharma, Govind K. Makharia, Vineet Ahuja, Devendra Desai, Devasenathipathy Kandasamy, Anu Eapen, Karthik Ganesan, Uday C. Ghoshal, Naveen Kalra, D. Karthikeyan, Kumble Seetharama Madhusudhan, Mathew Philip, Amarender Singh Puri, Sunil
    Indian Journal of Gastroenterology.2017; 36(6): 487.     CrossRef
  • Intestinal tuberculosis and Crohn's disease: challenging differential diagnosis
    Jia Yi Ma, Jin Lu Tong, Zhi Hua Ran
    Journal of Digestive Diseases.2016; 17(3): 155.     CrossRef
  • Change in the diagnosis of inflammatory bowel disease: a hospital-based cohort study from Korea
    Ho-Su Lee, Jaewon Choe, Hyo Jeong Lee, Sung Wook Hwang, Sang Hyoung Park, Dong-Hoon Yang, Kyung-Jo Kim, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Yong Sik Yoon, Chang Sik Yu, Jin-Ho Kim, Suk-Kyun Yang
    Intestinal Research.2016; 14(3): 258.     CrossRef
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Case Reports
A Case of Adenocarcinoma of the Transverse Colon with Humoral Hypercalcemia of Malignancy
Jae Gon Lee, Dong Soo Han, Jae Ha Kim, You Shin Kim, Hyun Soo Kim, Jae Yoon Jeong, Ju Yeon Pyo, Yong Cheol Jeon, Joo Hyun Sohn
Intest Res 2012;10(4):397-399.   Published online October 31, 2012
DOI: https://doi.org/10.5217/ir.2012.10.4.397
AbstractAbstract PDF
Hypercalcemia is a common electrolyte imbalance in patients with malignancy. Approximately 80% of hypercalcemia is associated with humoral hypercalcemia of malignancy (HHM), but occurs rarely in colorectal carcinomas. A 72-year-old man was admitted with abdominal pain and bowel habit change. Colonoscopy showed a malignant tumor in the transverse colon. Laboratory data showed an elevated serum calcium level (11.6 mg/dL) and elevated parathyroid hormone-related peptide level (12.2 pmol/L). Histology showed poorly differentiated adenocarcinoma. We infused intravenous normal saline, furosemide and pamidronate. The serum calcium level was subsequently normalized. However, the patient died from cancer progression 10 days later. With a review of the relevant literature, we report a case of adenocarcinoma of the transverse colon with HHM. (Intest Res 2012;10:397-399)

Citations

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  • Esophageal Cancer Initially Presenting as Severe Paraneoplastic Hypercalcemia Requiring Hemodialysis
    Hye Shin Ahn, Jong Min Yun, Yeong Bok Lee, Yu Mi Ko, Jung Eun Lee, Hye Sung Won, Sung Soo Kim, Young Ok Kim
    The Korean Journal of Gastroenterology.2015; 65(6): 361.     CrossRef
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A Case of Systemic Lupus Erythematosus Manifesting First as Mesenteric Vasculitis
Gun Hwa Lee, Chang Soo Eun, June Seok Song, Il Hwan Oh, Suk Hyun Jung, Hye Sun Park, Yong Chul Jun, Ju Hyun Sohn, Dong Soo Han
Intest Res 2012;10(3):305-308.   Published online July 31, 2012
DOI: https://doi.org/10.5217/ir.2012.10.3.305
AbstractAbstract PDF
Systemic lupus erythematosus (SLE) is a multisystem inflammatory disease that manifests various symptoms. Mesenteric vasculitis (MV) is one of the serious complications of SLE and carries a high mortality rate. Although MV is the main cause for acute abdominal pain in patients with SLE, it is very rare for the pain to be the first clinical manifestation of the disease. A 34-year old female presented with sudden onset abdominal pain accompanied by small intestinal bowel edema observed on abdominal computed tomography. We performed a diagnostic laparoscopy, as vital signs were becoming unstable and the diffuse abdominal tenderness was worsening rapidly. The examination showed a severe jejunal infarction; thus, the patient underwent a small bowel segmental resection. A histological examination revealed multiple, hemorrhagic, small-vessel vasculitis, and later serologic autoimmune markers were consistent with SLE. We suggest that SLE be considered in the differential diagnosis of young females presenting with an acute abdomen and unexplained enteropathy. A surgical approach such as exploratory laparoscopy could be an option in search for the cause. (Intest Res 2012;10: 0-308)
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Original Article
Comparison of Bowel Preparation Quality between Clear-liquid Diet and No Diet Restriction
Woo Shin Jeong, Dong Il Park, Hyo Sun Seok, Seong Eun Kim, Suck-Ho Lee, Chang Kyun Lee, Chang Soo Eun, Dong Soo Han
Intest Res 2012;10(3):272-279.   Published online July 31, 2012
DOI: https://doi.org/10.5217/ir.2012.10.3.272
AbstractAbstract PDF
Background/Aims
Adequate bowel preparation is essential for full visualization of colonic mucosa because detection of small polyps and neoplasms depends on the quality of bowel cleansing. The aims of this study were to compare the efficacy, tolerability of preparation and side effect between two groups: clear-liquid diet with polyethylene glycol (PEG) solution versus no diet restriction with PEG solution. Methods: This was a randomized single-blind prospective study. A total of 330 patients were randomly assigned to receive either 2 L PEG solution with a clear-liquid diet on the day before colonoscopy and another 2 L PEG solution on the day of the procedure (group 1) or 2 L PEG solution with a general diet on the day before colonoscopy and another 2 L PEG solution on the day of the procedure (group 2). Results: 162 patients were assigned to group 1 and 168 patients to group 2. The satisfactory quality of bowel preparation was not significantly different between the two groups (80.2%, 78.6%, P=0.707). Patient's compliance of the clear-liquid diet in group 1 was 50%. The satisfactory quality of bowel preparation was weakly better when the clear-liquid diet was given 2 or 3 times a day (group 1A) than 0 or once a day (group 1B) (74.1%, 86.4%, P=0.048). The tolerability of the PEG solution and side effects of preparation were not significantly different in the two groups (P=0.573, 0.686). Conclusions: Bowel preparation with no diet restriction and split-dose PEG solution was similar to preparation with a clear-liquid diet in efficacy, tolerability and side effect. Therefore, the use of the clear-liquid diet protocol should improve patient's compliance. (Intest Res 2012;10: 0-279)

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  • 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
  • 2,491 View
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Case Report
A Case of Acquired Zonal Aganglionosis in Adult
Woong Jun Kim, Chang Soo Eun, Min Kyu Lee, Seung Yeon Min, Yeon Hwa Yoo, Dong Soo Han, Yong Cheol Jeon, Joo Hyun Sohn
Intest Res 2012;10(2):210-214.   Published online April 30, 2012
DOI: https://doi.org/10.5217/ir.2012.10.2.210
AbstractAbstract PDF
A chronic intestinal pseudo-obstruction is a rare disorder and a severe digestive syndrome. It is characterized by deranged gut propulsive motility that resembles a mechanical obstruction, but no obstructive process is present. An intestinal pseudo-obstruction may be classified as acute or chronic; the chronic form may also be classified as idiopathic or secondary to a variety of diseases. Treatment of intestinal pseudo-obstruction involves nutritional, pharmacological, and surgical therapies. Surgery should be limited to patients who are refractory to medical therapy and show a deteriorating course. Despite available medical and surgical interventions, the outcome remains poor. Here, we describe a case of a 54-year-old female with chronic constipation and abdominal distension, who was subsequently found to have segmental aganglionosis. The patient was treated with a subtotal colectomy and ileosigmoidostomy without sequelae. (Intest Res 2012;10: 0-214)
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Original Article
Comparison of Infliximab and Infliximab/Azathioprine for Maintenance Therapy in Korean Patients with Luminal Crohn's Disease
Hyun Sun Won, Dong Il Park, Chang Uk Chon, Hyo Sun Seok, Tae Wan Kim, Woon Je Heo, Chang Kyun Lee, Chang Soo Eun, Dong Soo Han, Suck-Ho Lee
Intest Res 2011;9(3):189-195.   Published online December 30, 2011
DOI: https://doi.org/10.5217/ir.2011.9.3.189
AbstractAbstract PDF
Background/Aims
The benefits and risks of concomitant immunomodulators with infliximab maintenance therapy in patients with luminal Crohn's disease (CD) have not been adequately evaluated. We studied the influence of immunomodulator discontinuation in patients in remission with infliximab therapy through a restrospective case- control study. Methods: Medical records of 37 patients with luminal CD who received infliximab at four medical centers were retrospectively analyzed. We compared clinical and follow-up data of patients who were treated with infliximab alone with that of patients with combination therapy. Results: Among 37 patients, 31 (83.7%) were treated with infliximab plus azathioprine and six (16.2%) were treated with infliximab alone. Of the 31 patients receiving combination maintenance therapy, 26 (83.9%) were in complete remission after 12 months, as compared with five of six patients (83.3%) receiving infliximab alone. No significant difference was observed in remission rate between two groups (P=0.735). In total, 16.1% of patients in combination therapy and 16.7% in infliximab alone group reported side effects (P=1.000), but serious adverse events such as reactivation of tuberculosis were noted in only one patient in combination therapy group. Conclusions: Concomitant immunomodulators did not improve efficacy in patients with luminal CD who received scheduled infliximab maintenance. (Intest Res 2011;9:189-195)

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  • Clinical Outcome of Treatment with Infliximab in Crohn's Disease: A Single-Center Experience
    Yeon-Ju Kim, Jung-Wook Kim, Chang Kyun Lee, Hyun Jin Park, Jae-Jun Shim, Jae Young Jang, Suk Ho Dong, Hyo Jong Kim, Byung-Ho Kim, Young Woon Chang
    The Korean Journal of Gastroenterology.2013; 61(5): 270.     CrossRef
  • 2,548 View
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Case Reports
A Case of Warfarin-Induced Intramural Hematoma Diagnosed by Double-Balloon Enteroscopy
Dong Hwi Rim, Chang Soo Eun, Shin Jae Moon, Jung Ho Bae, Tae Yeob Kim, Hang Lak Lee, Joo Hyun Sohn, Yong Cheol Jeon, Dong Soo Han
Intest Res 2011;9(2):162-165.   Published online August 30, 2011
DOI: https://doi.org/10.5217/ir.2011.9.2.162
AbstractAbstract PDF
Although bleeding is a major complication of oral anticoagulant therapy, warfarin-induced spontaneous intramural hematoma of the small bowel is a very rare complication. The clinical features of spontaneous intramural hematoma vary from mild abdominal pain to panperitonitis due to bowel perforation. Because spontaneous intramural hematoma can proceed to a life threatening situation, early diagnosis is of vital importance. Although there are a number of radiologic diagnostic tools available including abdominal ultrasonography and computed tomography, confirmation of the diagnosis through direct visualization of the involved bowel mucosa is very helpful. Direct confirmation of warfarin-induced spontaneous intramural hematoma of the small bowel is possible using double-balloon enteroscopy. We report a case of warfarin-induced spontaneous intramural hematoma with a review of the relevant literature. (Intest Res 2011;9:162-165)
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A Case of Methicillin-Resistant Staphylococcal Enterocolitis with Subsequent Development of Lymphocytic Colitis
Joong Ho Bae, Dong Soo Han, Hye Sun Park, Yil Sik Hyun, Tae Yeob Kim, Chang Soo Eun, Yong Cheol Jeon, Joo Hyun Sohn
Intest Res 2011;9(2):139-143.   Published online August 30, 2011
DOI: https://doi.org/10.5217/ir.2011.9.2.139
AbstractAbstract PDF
Staphylococcus aureus (S. aureus) is occasionally a normal inhabitant of the gastrointestinal tract, and rarely considered a cause of enterocolitis. Methicillin-resistant Staphylococcal enterocolitis may cause persistent diarrhea leading to severe complications and even death, without appropriate treatment. Lymphocytic colitis (LC), a subtype of microscopic colitis, is a relatively common cause of chronic watery diarrhea. We report the case of a 73-year-old woman with profuse watery diarrhea caused by methicillin-resistant S. aureus. Soon after treatment of her enterocolitis with vancomycin the patient's general condition and symptoms improved, although the diarrhea persisted. Through colonoscopic biopsy and immunohistochemical staining, overt LC was diagnosed, and prompt therapy with budesonide was initiated. (Intest Res 2011;9:139-143)
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Original Article
Usefulness of Polyp Detection Rate as a Quality Indicator in Colonoscopy
Su Hee Lee, Dong Il Park, Jun Mo Sung, Jae Hyun Jang, Seung Ho Ryu, Young Ho Kim, Suck-Ho Lee, Chang Kyun Lee, Chang Soo Eun, Dong Soo Han
Intest Res 2011;9(2):105-111.   Published online August 30, 2011
DOI: https://doi.org/10.5217/ir.2011.9.2.105
AbstractAbstract PDF
Background/Aims
The adenoma detection rate (ADR) has been proposed as a quality indicator of colonoscopy; however, ADR cannot be measured easily with commonly used endoscopy reporting systems because substantial time and effort is required to acquire data from histologic assessments. The purpose of this study was to determine if polyp detection rate (PDR) could be used as a valid proxy for ADR. Methods: A total of 1,156 consecutive, asymptomatic, individuals of average risk between 50 and 75 years-of-age who underwent screening colonoscopies at four tertiary medical centers by 27 gastroenterologists were included in this study. Each individual endoscopist performed at least 10 colonoscopies during the study period. The ADR and PDR were calculated as the proportion of an endoscopist's cases with an adenoma or polyp divided by the total number of colonoscopies. Pearson's correlation coefficient and the intraclass correlation coefficient were used to determine the level of agreement between ADR and PDR. Results: The mean PDR and ADR for endoscopists was 47.4% (range, 21.7-75.0) and 36.5% (range, 13.0-66.7), respectively. There was a strong correlation between PDR and ADR (Pearson's correlation coefficient 0.94, P<0.001) and there was also good agreement between performance quintiles defined by ADR and PDR (intraclass correlation coefficient 0.94, P<0.001). Conclusions: PDR is a valid proxy for ADR and may be useful for quality assurance at centers where ADR cannot be easily measured. (Intest Res 2011;9:105-111)

Citations

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  • Usefulness of Polyp and Adenoma Detection Rate in the Proximal and Distal Colon
    Sung Youn Choi, Dong Il Park, Chang Kyun Lee, Jae Myung Cha, Suck Ho Lee, Young Whangbo, Chang Soo Eun, Dong Soo Han, Bo In Lee, Jeong Eun Shin
    The Korean Journal of Gastroenterology.2014; 63(1): 11.     CrossRef
  • Correlation between Adenoma Detection Rate and Advanced Adenoma Detection Rate
    Shin Yeoung Lee, Nam Hee Kim, Hyun Beom Chae, Ki Joong Han, Tae Hoon Lee, Choel Min Jang, Kyung Mo Yoo, Yoon Suk Jung, Jung Ho Park, Hong Joo Kim, Yong Kyun Cho, Chong Il Sohn, Woo Kyu Jeon, Byung Ik Kim, Dong Il Park
    The Korean Journal of Gastroenterology.2014; 64(1): 18.     CrossRef
  • The Correlation between Polyp Detection Rate and Adenoma Detection Rate: Mainly Determined by the Colon Segment
    Geom Seog Seo
    The Korean Journal of Gastroenterology.2014; 63(1): 1.     CrossRef
  • 2,610 View
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  • 3 Crossref
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Case Report
A Case of Hepatosplenic T-cell Lymphoma with Colonic Involvement
Ji Young Choi, Hye Sun Park, Dong Soo Han, Jae Hoon Kim, Yil Sik Hyun, Joong Ho Bae, Chang Soo Eun, Young Ha Oh
Intest Res 2011;9(1):51-55.   Published online April 30, 2011
DOI: https://doi.org/10.5217/ir.2011.9.1.51
AbstractAbstract PDF
Hepatosplenic T-cell lymphoma is a rare histologic type of peripheral T-cell lymphoma that usually presents with hepatosplenomegaly, B-symptoms, and often with rapid and aggressive progression. There have been no previous domestic reports of a hepatosplenic T-cell lymphoma involving the colon. We report a case of a 61-year old man with colonic invasion of a hepatosplenic T-cell lymphoma. He presented the sudden onset of fever accompanied by severe pancytopenia and rapid liver enzyme elevation without evidence of lymphadenopathy. Multiple tiny erosions were noted during colonoscopy. In addition, many immature lymphocytes with vague nucleoli, abundant eosinophilic cytosol, and nuclei of small-to-medium size were seen within the sinusoids on liver biopsy. A similar pattern existed on colonic mucosa obtained from colonoscopic biopsy. Thus, with the aid of such a specific clinical presentation and the results of immunohistochemical staining, we made a definitive diagnosis of hepatosplenic T-cell lymphoma with colonic involvement. (Intest Res 2011;9: 12-56)

Citations

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  • A Case of Hepatosplenic T-cell Lymphoma Diagnosed by Bone Marrow Examination
    Hee Jin So, Jin Kyung Lee, Young Jun Hong, Seok-Il Hong, Hye Jin Kang, Seung-Sook Lee, Yoon Hwan Chang
    Laboratory Medicine Online.2013; 3(2): 104.     CrossRef
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  • 1 Crossref
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Original Articles
Comparison of Bowel Preparation Depending on Completion Time of Polyethylene Glycol Ingestion and Start Time of Colonoscopy
Jang Hyuk Yoon, Dong Il Park, Jeong Eun Shin, Seong Eun Kim, Sung Ae Jung, Suck Ho Lee, Dong Kyung Chang, Chang Soo Eun, Dong Soo Han, Hyun Soo Kim, Seun Ja Park, Il Hyun Baek, Bora Keum, Yoon Tae Jeen
Intest Res 2010;8(1):24-29.   Published online June 30, 2010
DOI: https://doi.org/10.5217/ir.2010.8.1.24
AbstractAbstract PDF
Background/Aims
Polyethylene glycol (PEG) solution is the most widely used bowel preparation agent for colonoscopy because of its safety and efficacy in colon cleansing. It has been hypothesized that the timing of colon preparation may influence the quality of colon cleansing, and therefore affect the diagnostic yield of colonoscopy. The aim of this study was to determine the optimal interval of time between complete ingestion of PEG and performing colonoscopy. Methods: We prospectively enrolled 1,355 patients who had undergone a PEG-based bowel preparation on the day of colonoscopy in 11 tertiary hospitals in Korea between March 2008 and February 2009. All colonoscopies were performed in the afternoon. The start time of PEG ingestion, completion time of PEG ingestion, dose of PEG ingested, start time of colonoscopy, and the quality of bowel cleansing were recorded. Results: There was no difference of cleansing quality of bowel preparation between three groups of less than 7 hours of elapsed time (2≤ and <3 hours, 3≤ and <5 hours, 5≤ and <7 hours). However, group of more than 7 hours of elapsed time presented poor cleansing quality than others (P<0.01). Conclusions: If >7 hours elapses after ingestion of PEG, the quality of bowel preparation is poor. Therefore, depending on the time colonoscopy is scheduled, the start time of PEG ingestion may need to be adjusted. (Intest Res 2010;8:24-29)

Citations

Citations to this article as recorded by  
  • The optimal bowel preparation intervals before colonoscopy: A randomized study comparing polyethylene glycol and low-volume solutions
    Vladimir Kojecky, Jan Matous, Radan Keil, Milan Dastych, Zdena Zadorova, Michal Varga, Radek Kroupa, Jiri Dolina, Miroslav Misurec, Ales Hep, Martin Griva
    Digestive and Liver Disease.2018; 50(3): 271.     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
  • 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
  • Importance of the Time Interval between Bowel Preparation and Colonoscopy in Determining the Quality of Bowel Preparation for Full-Dose Polyethylene Glycol Preparation
    Tae Kyung Kim, Hyung Wook Kim, Su Jin Kim, Jong Kun Ha, Hyung Ha Jang, Young Mi Hong, Su Bum Park, Cheol Woong Choi, Dae Hwan Kang
    Gut and Liver.2014; 8(6): 625.     CrossRef
  • A Comparison of 2 L of Polyethylene Glycol and 45 mL of Sodium Phosphate versus 4 L of Polyethylene Glycol for Bowel Cleansing: A Prospective Randomized Trial
    Suh Eun Bae, Kyung-Jo Kim, Jun Bum Eum, Dong Hoon Yang, Byong Duk Ye, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang, Jin-Ho Kim
    Gut and Liver.2013; 7(4): 423.     CrossRef
  • A Clear Liquid Diet Is Not Mandatory for Polyethylene Glycol-Based Bowel Preparation for Afternoon Colonoscopy in Healthy Outpatients
    Yoon Suk Jung, Hyo Sun Seok, Dong Il Park, Chang Seok Song, Seong Eun Kim, Suck Ho Lee, Chang Soo Eun, Dong Soo Han, Yong Soo Kim, Chang Kyun Lee
    Gut and Liver.2013; 7(6): 681.     CrossRef
  • Comparison of Bowel Preparation Quality between Clear-liquid Diet and No Diet Restriction
    Woo Shin Jeong, Dong Il Park, Hyo Sun Seok, Seong Eun Kim, Suck-Ho Lee, Chang Kyun Lee, Chang Soo Eun, Dong Soo Han
    Intestinal Research.2012; 10(3): 272.     CrossRef
  • Comparison among Conventional 4 L Polyethylene Glycol, Split Method of 4 L Polyethylene Glycol and Combination of 2 L Polyethylene Glycol and Sodium Phosphate Solution for Colonoscopy Preparation
    So Young Jo, Nayoung Kim, Jung Won Lee, Ji Hwan Lim, Chiun Choi, Ilyoung Chon, Ho Kil, Bo Young Min, Young Sang Byoun, Ban Seok Lee, Sang Eon Jang, Hyun Kyung Park, Hyun Jin Jo, Cheol Min Shin, Sang Hyup Lee, Young Soo Park, Jin-Hyeok Hwang, Jin-Wook Kim,
    The Korean Journal of Gastroenterology.2012; 59(6): 414.     CrossRef
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Postinfectious Irritable Bowel Syndrome after Clostridium difficile Infection
Hye Sun Park, Dong Soo Han, Yil Sik Hyun, Joong Ho Bae, Sang Bong Ahn, Hyun Seok Cho, Tae Yeob Kim, Chang Soo Eun, Yong Cheol Jeon, Joo Hyun Sohn
Intest Res 2009;7(2):100-104.   Published online December 30, 2009
AbstractAbstract PDF
Background/Aims
Post-infectious irritable bowel syndrome (PI-IBS) frequently follows bacterial enterocolitis, and there are various reported incidences and clinical courses according to different pathogens. However, there have rarely been any reports regarding the PI-IBS caused by Clostridium difficile infection (CDI). The aims of this study were to evaluate the incidence and the risk factors for developing IBS following CDI. Methods: We recruited 86 patients with CDI from January 2005 to October 2007 and also we recruited a comparative control group of 86 patients who had no previous history of any gastroenterological disease. The bowel symptoms were prospectively evaluated by phone through a set questionnaire. Results: Of all the CDI patients, a total of 41 patients (47.6%) completed the questionnaires, and IBS developed in 8 patients (19.5%), of which 7 patients (87.5%) were the diarrhea type. A total of 51 patients (59.3%) from the control group completed the questionnaires, of which 4 patients (7.8%) developed IBS. Although there was no statistically significant difference (p=0.099), there was a tendency towards a higher incidence of developing IBS in the CDI patients group, as compared to that of the control group. Comparing the group that developed IBS with the group that didn't among the CDI patients, there were no significantly different factors except for a previous admission history before CDI. Conclusions: The incidence of PI-IBS after CDI was 19.5%, and the IBS was predominantly the diarrhea-type. In the future, a large scale study needs to be conducted in order to evaluate the PI-IBS incidence after CDI and the risk factors that predispose patients to such conditions. (Intest Res 2009;7:100-104)
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Clinical Significance of Screening Colonoscopy in Elderly: A KASID Multi-center Study
Sung Geun Park, Dong Il Park, Young-Ho Kim, Hyun Soo Kim, Won Ho Kim, Tae Il Kim, Hyo Jong Kim, Suk-Kyun Yang, Jeong-Sik Byeon, Moon Sung Lee, Il Kwon Jung, Moon Kwan Chung, Sung-Ae Jung, Yoon Tae Jeen, Jai Hyun Choi, Hwang Choi, Dong Soo Han, Jae Suk Song
Intest Res 2008;6(1):25-30.   Published online June 30, 2008
AbstractAbstract PDF
Background/Aims
Currently, screening colonscopy is widely performed in the medical field. The initial time of screening is recommended at an age of 50 years, but the age to cease screening is unknown. Accordingly, we have investigated the diagnostic yield of colonoscopy according to indications in the elderly, and we evaluated if screening colonoscopy is useful in the elderly. Methods: We recruited asymptomatic individuals undergoing screening colonoscopy according to age (2830 subjects aged 50-74 years and 111 subjects ≥75 years-old), The colonoscopy findings of the study subjects were compared. In addition, colonoscopy findings of asymptomatic subjects more than 75 years-old were compared with the findings of symptomatic subjects with the same age. Results: The yield for overall neoplasia and advanced adenoma was higher in the group of subjects ≥75 years-old than in the 50-74 years age group (overall adenoma: 49.54% versus 24.98%, p<0.001; advanced adenoma: 16.2% versus 8.23%, p=0.003). The overall frequency of neoplasms was higher in asymptomatic subjects ≥75 years-old than in symptomatic subjects ≥75 years-old (49.54% versus 28.19%, p<0.001). Conclusions: The prevalence of advanced adenoma increased with age. Screening colonoscopy was still significantly effective in elderly subjects ≥75 years-old. The lack of a decline in the frequency of adenoma, including advanced adenoma, justifies continuing screening colonoscopy in the elderly. (Intest Res 2008;6:25-30)
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Factors Affecting the Efficacy of Tegaserod in Patients with Chronic Constipation
Hwang Choi, Sang Heon Yoon, Won Chul Lee, Joo Sung Kim, Dong Kyung Chang, Yoon Tae Jeen, Jin Oh Kim, Dong Soo Han, Hyo Jong Kim, Sang Yong Seol, Won Ho Kim, Suk Kyun Yang, Jin Ho Kim
Intest Res 2007;5(2):170-176.   Published online December 30, 2007
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Background/Aims
The effect of tegaserod has been found to differ for Caucasian and black patients. The aims of this study were to demonstrate the efficacy of tegaserod on bowel habits and to investigate the factors affecting the efficacy of tegaserod in Korean patients suffering from chronic constipation (CC). Methods: This was an open-label, multi-center, observational study. Analysis of covariance with repeated measures was used to determine the overall effect of treatment and was used to determine the changes in the number of complete spontaneous bowel movements (CSBM) from baseline during the 8-week treatment period. Demographic and baseline characteristics were compared between responders (3 or more CSBM at 8-weeks) and non-responders by the use of multivariate analysis. Results: A total of 1,798 patients were included in the study. Tegaserod treatment resulted in a significant increase in the mean number of CSBM per week over weeks 2-8 from baseline levels (from 1.0 to 3.1 CSBM per week, p<0.0001). Tegaserod treatment was more effective for female patients, younger patients (age less than 65 years), patients with a high Bristol score at baseline, and patients with a short duration of constipation symptoms. Conclusions: Treatment with tegaserod improved bowel movements and more effective in female patients, patients under the age of 65 years, patients with a high Bristol score at baseline, and patients with a short duration of constipation symptoms. (Intest Res 2007;5:170-176)
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Clinical Features of Intestinal Behcet's Disease according to Disease Subtypes
Ji Eun Kim, Dong Soo Han, Hyun Seok Cho, Tae Joon Byun, Tae Yeob Kim, Chang Soo Eun, Yong Cheol Jeon, Joo Hyun Sohn
Intest Res 2007;5(1):26-32.   Published online June 30, 2007
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Background/Aims
Intestinal Behcet's disease can be diagnosed when Behcet's disease patient has intestinal ulcers. The aim of this study was to recognize the clinical features and course of intestinal Behcet's disease according to disease subtypes. Methods: We performed a retrospective chart review of patients who had intestinal lesions associated with Behcet's disease on colonoscopy between March, 2001 and May, 2006. Results: Of the 38 patients (18 men/20 women) enrolled, the mean age at diagnosis was 40.9⁑13.6 years. By Japanese criteria, 18 patients were classified in incomplete type, 8 in suspected type, and 8 in possible type. Four patients had only intestinal lesion without Behcet's manifestation. By International Study Group of Behcet's Disease criteria, 10 were met Behcet's disease, and 15 was suspected as Behcet's disease. Characteristics of intestinal ulcers were aphthous shape and ileocecal location. Five patients were reclassified during clinical course. There was no difference at clinical outcome according to prescribed medications. Conclusions: Not a few of intestinal Behcet's disease patients were difficult to meet the Behcet's disease criteria. Because clinical manifestations of intestinal Behcet's disease patients may be changed, it would be needed to reclassify disease subtypes with long-term follow-up. (Intest Res 2007;5:26-32)
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Case Report
A Case of Multiple Deep Infiltrating Intestinal Endometriosis Presenting as Abdominal Mass
Hyun Seok Cho, Dong Soo Han, Se Woo Park, Tae Jun Byun, Tae Yeob Kim, Chang Soo Eun, Yong Cheol Jeon, Joo Hyun Sohn
Intest Res 2007;5(1):87-91.   Published online June 30, 2007
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Endometriosis is one of the most common benign gynecologic conditions in women of childbearing age. Endometriosis involving the gastrointestinal tract occurs in 5.3-12% of women and the most commonly affected site is the rectum and the sigmoid colon. The reports of intestinal endometriosis in Korea are too few to obtain a rate of occurence, and in these cases, the depth of invasion was limited to the serosa, resulting in no significant symptoms or signs. Intestinal endometriosis can show up as a mass suggestive of malignant neoplasm on imaging studies, which can result in serious errors in diagnosis and treatment. In Korean studies, the masses were solitary, and there was no reported case of multiple endometriosis in the sigmoid colon, ascending and descending colon. We report a case of multiple deep infiltrating intestinal endometriosis presenting as an abdominal mass. (Intest Res 2007;5:87-91)
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Intest Res : Intestinal Research
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