Intestinal Research

Original Articles

Infection

The impact of the quality improvement program on Clostridioides difficile infection management: a quasi-experimental study: Jung Yun Lee, Jae-Ki Choi, Tae-Geun Gweon, Young Eun An, Hyo Suk Kim, Jae Hyuck Chang, Tae Ho Kim, Chang Whan Kim, Young-Seok Cho; Intest Res 2025;23(4):551-558. Published online October 28, 2025; DOI: https://doi.org/10.5217/ir.2025.00137

Abstract PDF PubReader ePub: Background/Aims
Clostridioides difficile infection (CDI) is a major cause of nosocomial diarrhea. This study aimed to implement a quality improvement program to expedite proper CDI treatment, including discontinuing laxatives and associated antibiotics.
Methods
Stool test results positive for CDI were automatically sent via text message to the quality improvement team, specialists in CDI management. The quality improvement team played an advisory role in this treatment. The outcome of this study was the competency of CDI treatment within 24 hours of stool test reporting. Competency was investigated using 3 different models: Model 1, initiation of CDI treatment within 24 hours of positive stool test report; Model 2, Model 1 criteria met with no concurrent laxative use; and Model 3, Model 2 criteria met with no concurrent associated antibiotics. Competency rates were compared between pre- and post-intervention periods (1 year each). Analyses were performed for inpatients with CDI.
Results
In total, 310 inpatients with CDI (129 pre-intervention, 181 post-intervention) were included in this study. The rates of competency for Model 1 (85.3% vs. 95.6%, p= 0.006), Model 2 (81.4% vs. 92.3%, p= 0.004), and Model 3 (35.7% vs. 56.4%, p< 0.001) in the post-intervention group were higher to those in the pre-intervention group.
Conclusions
Quality improvement program enhanced the quality of CDI treatment in terms of prompt treatment and discontinuation of concomitant laxatives and associated antibiotics. (cris.nih.go.kr; KCT0005892)

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Colorectal neoplasia

A survey of current practices in post-polypectomy surveillance in Korea: Jeongseok Kim, Tae-Geun Gweon, Min Seob Kwak, Su Young Kim, Seong Jung Kim, Hyun Gun Kim, Eun Ran 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, on behalf of the Intestinal Tumor Research Group of the Korean Association for the Study of Intestinal Diseases (KASID); Intest Res 2024;22(2):186-207. Published online April 25, 2024; DOI: https://doi.org/10.5217/ir.2023.00109

Abstract PDF Supplementary Material PubReader ePub

Background/Aims
We investigated the clinical practice patterns of post-polypectomy colonoscopic surveillance among Korean endoscopists.
Methods
In a web-based survey conducted between September and November 2021, participants were asked about their preferred surveillance intervals and the patient age at which surveillance was discontinued. Adherence to the recent guidelines of the U.S. Multi-Society Task Force on Colorectal Cancer (USMSTF) was also analyzed.
Results
In total, 196 endoscopists completed the survey. The most preferred first surveillance intervals were: a 5-year interval after the removal of 1–2 tubular adenomas < 10 mm; a 3-year interval after the removal of 3–10 tubular adenomas < 10 mm, adenomas ≥ 10 mm, tubulovillous or villous adenomas, ≤ 20 hyperplastic polyps < 10 mm, 1–4 sessile serrated lesions (SSLs) < 10 mm, hyperplastic polyps or SSLs ≥ 10 mm, and traditional serrated adenomas; and a 1-year interval after the removal of adenomas with highgrade dysplasia, >10 adenomas, 5–10 SSLs, and SSLs with dysplasia. In piecemeal resections of large polyps ( > 20 mm), surveillance colonoscopy was mostly preferred after 1 year for adenomas and 6 months for SSLs. The mean USMSTF guideline adherence rate was 30.7%. The largest proportion of respondents (40.8%–55.1%) discontinued the surveillance at the patient age of 80–84 years.
Conclusions
A significant discrepancy was observed between the preferred post-polypectomy surveillance intervals and recent international guidelines. Individualized measures are required to increase adherence to the guidelines.

Citations

Citations to this article as recorded by

Comparison between endoscopic resection and transanal surgery for treatment of rectal tumors: a systematic review and meta‑analysis
Chan Hyuk Park, Byung Wook Jung, Yoon Suk Jung
Intestinal Research.2026; 24(1): 38. CrossRef
Is cap still useful for colon adenoma detection rate improvement in the artificial intelligence era?
Tae-Woo Kim, Soo-Young Na
Clinical Endoscopy.2026; 59(1): 73. CrossRef
Influence of Lifestyles on Polyp Burden and Cancer Development in Hereditary Colorectal Cancer Syndromes
Hye Kyung Hyun, Ji Soo Park, Jihye Park, Soo Jung Park, Jae Jun Park, Jae Hee Cheon, Tae Il Kim
Journal of Gastroenterology and Hepatology.2025; 40(2): 433. CrossRef
Chronic Kidney Disease Increases Risk of Delayed Post‐Polypectomy Bleeding: A Large‐Scale Propensity Score‐Matched Analysis
Hye Kyung Hyun, Nak‐Hoon Son, So Hyeon Gwon, Hyun Chul Lim, Jihye Park, Soo Jung Park, Jae Jun Park, Jae Hee Cheon, Tae Il Kim, Tae‐Hyun Yoo, Shin‐Wook Kang, Hae‐Ryong Yun, Cheal Wung Huh
United European Gastroenterology Journal.2025; 13(5): 759. CrossRef
Minimum Platelet Count Threshold for Safe Colonoscopic Polypectomy: A Large-Scale Propensity Scored-Matched Analysis
Hye Kyung Hyun, Nak-Hoon Son, Cheal Wung Huh, Hyun Chul Lim, So Hyeon Gwon, Jihye Park, Soo Jung Park, Jae Jun Park, Jae Hee Cheon, Tae Il Kim
American Journal of Gastroenterology.2025; 120(12): 2918. CrossRef
Determinants of Shorter Surveillance Colonoscopy Intervals: A Nationwide Real‐World Study in Japan
Munenori Honda, Ryosuke Gushima, Kotaro Waki, Kenshi Matsuno, Yoki Furuta, Hideaki Miyamoto, Katsuya Nagaoka, Hideaki Naoe, Yasuhito Tanaka
Journal of Gastroenterology and Hepatology.2025; 40(12): 2944. CrossRef

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Colorectal neoplasia

Postgastrectomy gastric cancer patients are at high risk for colorectal neoplasia: a case control study: Tae-Geun Gweon, Kyu-Tae Yoon, Chang Hyun Kim, Jin-Jo Kim; Intest Res 2021;19(2):239-246. Published online November 13, 2020; DOI: https://doi.org/10.5217/ir.2020.00009

Abstract PDF PubReader ePub

Background/Aims
Several studies have shown that colorectal neoplasms (CRN) including colorectal cancer (CRC) may be prevalent in patients with gastric cancer. However, in most of these studies, colonoscopy to investigate the prevalence of CRN was performed prior to surgery. We aimed to investigate whether CRN was more prevalent in postgastrectomy gastric cancer patients than in healthy individuals.
Methods
We reviewed the medical records of those patients within a cohort of gastric cancer patients with gastrectomy who underwent colonoscopy between 2016 and 2017. Controls age- and sex-matched with gastric cancer patients at a 2:1 ratio were identified among those who underwent colonoscopy at a health-promotion center. The frequencies of CRN, advanced CRN (ACRN), and CRC among patients with gastrectomy were compared with those in the control subjects. A total of 744 individuals (gastric cancer, 248; control, 496) were included.
Results
The rates of CRN and ACRN in the gastric cancer group were higher than those in the healthy individuals (CRN, 47.6% vs. 34.7%, P< 0.001; ACRN, 16.9% vs. 10.9%, P= 0.020). The rate of CRC was comparable between the 2 groups (2.0% vs. 0.6%, P= 0.125). Multivariate analysis identified previous gastrectomy for gastric cancer and male sex as significant risk factors for (A)CRN.
Conclusions
CRN and ACRN were more prevalent in patients who underwent surgery for gastric cancer than in the control group. Regular surveillance colonoscopy at appropriate intervals is indicated after gastrectomy.

Citations

Citations to this article as recorded by

Safety of cold snare resection techniques for removal of polyps in the small colon in patients taking clopidogrel and aspirin: a Korean Association for the Study of Intestinal Diseases prospective multicenter study
Tae-Geun Gweon, Hyun Gun Kim, Yunho Jung, Seong Ran Jeon, Soo-Young Na, Yoo Jin Lee, Tae Ho Kim
Gastrointestinal Endoscopy.2025; 101(4): 866. CrossRef
Gastric Cancer and Microbiota: Exploring the Microbiome’s Role in Carcinogenesis and Treatment Strategies
Daniela-Cornelia Lazăr, Sorin-Dan Chiriac, George-Andrei Drăghici, Elena-Alina Moacă, Alexandra Corina Faur, Mihaela-Flavia Avram, Vladiana-Romina Turi, Mihaela-Roxana Nicolin, Adrian Goldiș, Matin Asad Salehi, Radu Jipa
Life.2025; 15(7): 999. CrossRef
Analysis of the risk of metachronous colorectal cancer and long-term prognosis in patients following gastrectomy for gastric cancer
Jun He, Bixian Luo, Hongming Liu, Dong Cao, Weihua Gong
Scientific Reports.2025;[Epub] CrossRef
Effect of bowel preparation completion time on bowel cleansing efficacy: Prospective randomized controlled trial of different bowel preparation completion times precolonoscopy
Hye Min Kim, Hyo Suk Kim, Young Eun An, Jae Hyuck Chang, Tae Ho Kim, Chang Whan Kim, Tae‐Geun Gweon
Digestive Endoscopy.2024; 36(12): 1347. CrossRef
Calcium, Vitamin D, and Colorectal Cancer
Young-Jo Wi, Soo-Young Na
The Korean Journal of Gastroenterology.2023; 82(2): 47. CrossRef
Comparison of 2 L Polyethylene Glycol Plus Ascorbic Acid and 4 L Polyethylene Glycol in Elderly Patients Aged 60–79: A Prospective Randomized Study
Sung Hoon Jung, Chul-Hyun Lim, Tae-Geun Gweon, Jinsu Kim, Jung Hwan Oh, Kyu-Tae Yoon, Jee Young An, Jeong‑Seon Ji, Hwang Choi
Digestive Diseases and Sciences.2022; 67(10): 4841. CrossRef
Colonoscopy Insertion in Patients with Gastrectomy: Does Position Impact Cecal Intubation Time?
Jae Hyun Kim, Youn Jung Choi, Hye Jung Kwon, Gyu Man Oh, Kyoungwon Jung, Sung Eun Kim, Won Moon, Moo In Park, Seun Ja Park
Digestive Diseases and Sciences.2022; 67(9): 4533. CrossRef
Early gastric neoplasms are significant risk factor for colorectal adenoma: A prospective case-control study
Seong-Jung Kim, Jun Lee, Dae Youb Baek, Jun Hyung Lee, Ran Hong
Medicine.2022; 101(32): e29956. CrossRef
Colorectal Neoplasia in CDH1 Pathogenic Variant Carriers: A Multicenter Analysis
Peter P. Stanich, Dareen Elgindi, Elena Stoffel, Erika Koeppe, Ajay Bansal, Rachel Stetson, Debra L. Collins, Dana Farengo Clark, Eve Karloski, Beth Dudley, Randall E. Brand, Michael J. Hall, Yana Chertock, Brian A. Sullivan, Charles Muller, Alice Hinton,
American Journal of Gastroenterology.2022; 117(11): 1877. CrossRef

7,392 View
118 Download
10 Web of Science
9 Crossref

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