Comparison of Non-invasive Diagnostic Methods for Helicobacter Pylori Infection Before and After Treatment.
Introduction: Helicobacter pylori (H. pylori) infection is a major contributor to peptic ulcer disease and other gastrointestinal disorders. The present study aimed to investigate the effect of treatment on diagnostic outcomes by comparing two non-invasive methods--the stool antigen test and the ser...
| Publicado en: | Middle East Journal of Digestive Diseases Vol. 18; no. 1; pp. 18 - 25 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Iranian Association of Gastroenterology & Hepatology
Jan2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=194806759&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 194806759 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 20085230 BG4K jtl: Middle East Journal of Digestive Diseases issn: 20085230 maglogo: N pubinfo: dt: Jan2026 vid: 18 iid: 1 pid: 70725 pub: Iranian Association of Gastroenterology & Hepatology artinfo: ui: 194806759 194806759 194806759 10.34172/mejdd.3286 194806759 ppf: 18 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Comparison of Non-invasive Diagnostic Methods for Helicobacter Pylori Infection Before and After Treatment. aug: au: Shamsdin, Seyedeh Azra Faramarzi, Hossein Khazraei, Hajar Zare, Fateme Kamyab, Amirhossein affil: Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran sug: subj: Noninvasive Procedures Methods Helicobacter Infections Diagnosis Immunoglobulin G4-Related Disease Feces Analysis Treatment Outcomes Human Nonexperimental Studies Iran Dyspepsia Immunoglobulins Sensitivity and Specificity Male Female Clarithromycin Amoxicillin Pantoprazole Sodium Enzyme-Linked Immunosorbent Assay Data Analysis Software Endoscopy, Gastrointestinal Patient Compliance Funding Source Male Female ab: Introduction: Helicobacter pylori (H. pylori) infection is a major contributor to peptic ulcer disease and other gastrointestinal disorders. The present study aimed to investigate the effect of treatment on diagnostic outcomes by comparing two non-invasive methods--the stool antigen test and the serological IgG antibody test, before and after therapy. This approach was designed to evaluate not only the diagnostic efficacy of these tools but also the changes in antibody responses following eradication treatment. Methods: This observational study was conducted from 2021 to 2022 at Shahid Motahari Clinic, affiliated with Shiraz University of Medical Sciences, Shiraz, Iran. A total of 108 patients with dyspepsia and confirmed H. pylori infection were enrolled. Diagnostic tests included stool antigen, anti-H. pylori IgG serology, and the urease breath test (UBT). Patients received standard triple therapy, with stool antigen and IgG levels measured before and one month after treatment to assess diagnostic accuracy and treatment outcomes. Results: Among 108 patients, 74% had peptic ulcer disease. The UBT showed the highest diagnostic accuracy (100% sensitivity, 94.6% specificity). Anti-H. pylori IgG serology had high sensitivity (100%) but lower specificity (66.2%). The stool antigen test demonstrated moderate accuracy. After treatment, stool antigen levels significantly decreased (from 4.2 ± 0.64 to 2.9 ± 0.75, P = 0.03), and IgG titers declined significantly (from 54.26 ± 3.33 to 46.51 ± 3.22, P < 0.0001). Conclusion: Our findings underscore UBT as the most accurate method and highlight the value of stool antigen testing for follow- up. Monitoring IgG titer changes may support treatment assessment when used alongside other tools, though its low specificity limits stand-alone use. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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