{"title":"Map-Like Redness Development After Eradication Therapy for Helicobacter pylori Infection: Prospective Multicenter Observational Study","authors":"Sho Matsumoto, Mitsushige Sugimoto, Tomohiro Terai, Yasuhiko Maruyama, Shu Sahara, Shigeru Kanaoka, Yashiro Yoshizawa, Shuhei Unno, Masaki Murata, Takahiro Uotani, Tomohiro Sugiyama, Shigemi Nakajima, Kiyoyuki Hayafuji, Ken Haruma, Tomoari Kamada, Masakatsu Fukuzawa, Takashi Kawai, Takao Itoi","doi":"10.1111/hel.13146","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <h3> Background</h3>\n \n <p>Map-like redness, pathological intestinal metaplasia, is observed in one-fourth to one-third of patients 1 year after <i>Helicobacter pylori</i> eradication therapy, mainly in the corpus, and is a newly identified endoscopic risk factor for gastric cancer development after eradication. However, it is unclear whether intestinal metaplasia is present before eradication at the site where the map-like redness appears. We aimed to identify endoscopic findings that predict the occurrence of map-like redness before <i>H. pylori</i> eradication.</p>\n </section>\n \n <section>\n \n <h3> Materials and Methods</h3>\n \n <p>As a prospective multicenter trial, the characteristics of patients in whom map-like redness developed after eradication, and the association between the endoscopic severity of gastritis and the development of map-like redness in patients who underwent endoscopy before and 1-year after eradication were investigated.</p>\n </section>\n \n <section>\n \n <h3> Results</h3>\n \n <p>The rate of map-like redness in all 93 patients 1-year postsuccessful eradication was 30.1% (95% confidence interval [CI]: 21.0–40.5). All patients with map-like redness were endoscopically observed to have intestinal metaplasia before eradication, in the site that subsequently developed map-like redness. Patients who developed map-like redness were older, had more severe intestinal metaplasia and nodularity and a higher total score on the Kyoto Classification of Gastritis both before and after eradication than patients who did not. On multivariate analysis, map-like redness was found to be associated with posttreatment intestinal metaplasia (odds ratio: 8.144; 95% CI: 2.811–23.592).</p>\n </section>\n \n <section>\n \n <h3> Conclusions</h3>\n \n <p>In all patients who developed map-like redness after eradication, endoscopic intestinal metaplasia was observed at the site developed map-like redness before eradication therapy. Map-like redness was especially observed in patients with more severe intestinal metaplasia at 1-year after eradication. Such patients require increased attention at surveillance endoscopy, owing to generally having a higher risk of gastric cancer development.</p>\n </section>\n \n <section>\n \n <h3> Trial Registration</h3>\n \n <p>University Hospital Medical Information Network: UMIN000044707</p>\n </section>\n </div>","PeriodicalId":13223,"journal":{"name":"Helicobacter","volume":"29 6","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/hel.13146","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Helicobacter","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/hel.13146","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GASTROENTEROLOGY & HEPATOLOGY","Score":null,"Total":0}
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Abstract
Background
Map-like redness, pathological intestinal metaplasia, is observed in one-fourth to one-third of patients 1 year after Helicobacter pylori eradication therapy, mainly in the corpus, and is a newly identified endoscopic risk factor for gastric cancer development after eradication. However, it is unclear whether intestinal metaplasia is present before eradication at the site where the map-like redness appears. We aimed to identify endoscopic findings that predict the occurrence of map-like redness before H. pylori eradication.
Materials and Methods
As a prospective multicenter trial, the characteristics of patients in whom map-like redness developed after eradication, and the association between the endoscopic severity of gastritis and the development of map-like redness in patients who underwent endoscopy before and 1-year after eradication were investigated.
Results
The rate of map-like redness in all 93 patients 1-year postsuccessful eradication was 30.1% (95% confidence interval [CI]: 21.0–40.5). All patients with map-like redness were endoscopically observed to have intestinal metaplasia before eradication, in the site that subsequently developed map-like redness. Patients who developed map-like redness were older, had more severe intestinal metaplasia and nodularity and a higher total score on the Kyoto Classification of Gastritis both before and after eradication than patients who did not. On multivariate analysis, map-like redness was found to be associated with posttreatment intestinal metaplasia (odds ratio: 8.144; 95% CI: 2.811–23.592).
Conclusions
In all patients who developed map-like redness after eradication, endoscopic intestinal metaplasia was observed at the site developed map-like redness before eradication therapy. Map-like redness was especially observed in patients with more severe intestinal metaplasia at 1-year after eradication. Such patients require increased attention at surveillance endoscopy, owing to generally having a higher risk of gastric cancer development.
Trial Registration
University Hospital Medical Information Network: UMIN000044707
期刊介绍:
Helicobacter is edited by Professor David Y Graham. The editorial and peer review process is an independent process. Whenever there is a conflict of interest, the editor and editorial board will declare their interests and affiliations. Helicobacter recognises the critical role that has been established for Helicobacter pylori in peptic ulcer, gastric adenocarcinoma, and primary gastric lymphoma. As new helicobacter species are now regularly being discovered, Helicobacter covers the entire range of helicobacter research, increasing communication among the fields of gastroenterology; microbiology; vaccine development; laboratory animal science.