External validation of a classification for methylene blue magnification chromoendoscopy in premalignant gastric lesions

Gastrointestinal Endoscopy
Miguel AreiaMaximino Correia Leitão

Abstract

Conventional endoscopy has low sensitivity, specificity, and interobserver agreement for the diagnosis of gastric atrophy, intestinal metaplasia, and dysplasia. Magnification chromoendoscopy (ME) may optimize the evaluation of premalignant gastric lesions. As part of a multicenter trial, we aimed at validating a previously proposed classification for gastric methylene blue ME at a different center. SETTING, PATIENTS, AND INTERVENTIONS: A sample of patients (n = 42) with previously diagnosed chronic atrophic gastritis with or without intestinal metaplasia underwent ME (Pentax EG-3430Z) with 1% methylene blue by 2 endoscopists. A simplified version of a previously published ME classification (group I, group II [further divided into subgroups IIE and IIF], and group III) was used for macroscopic lesions (n = 203) with Sydney-Houston and Vienna classifications being used for histologic analysis (n = 479 biopsy specimens). Excellent reproducibility (wK = 0.92 [95% CI, 0.88-0.96]) was observed for classification in groups and substantial reproducibility (wK = 0.78 [95% CI, 0.72-0.84]) was found for classification in subgroups. Global validity was 82% (range 78%-86%), showing no false negatives (sensitivity of 100% [1/1 biopsy]) and a...Continue Reading

References

Nov 1, 1992·Gastrointestinal Endoscopy·M B FennertyH S Garewal
Sep 1, 1990·Gastrointestinal Endoscopy·G StathopoulosM O Blackstone
Jun 1, 1985·Journal of Clinical Pathology·G A Rothery, D W Day
Oct 1, 1987·The American Journal of Surgical Pathology·E P SaragaJ Costa
May 1, 1994·International Journal of Cancer. Journal International Du Cancer·M I FilipeT Prijon
Aug 1, 1997·International Journal of Epidemiology·M PlummerN Muñoz
Dec 24, 1997·Cancer·S A HundahlD P Winchester
Jun 28, 2001·BJOG : an International Journal of Obstetrics and Gynaecology·P F Chien, K S Khan
Mar 29, 2002·Cancer·Hala M T El-ZimaityTsutomu Katsuyama
Apr 1, 2003·Gastrointestinal Endoscopy·Mário Dinis-RibeiroRafael Lomba-Viana
Aug 2, 2003·Gastroenterology·M Brian Fennerty
Jan 15, 2004·Endoscopy·M P Dore, D Y Graham
Jan 30, 2004·Journal of Clinical Pathology·M Dinis-RibeiroL Moreira-Dias
Apr 22, 2004·Endoscopy·H YamadaM Maruyama
Jun 4, 2005·Endoscopy·UNKNOWN Endoscopic Classification Review Group

❮ Previous
Next ❯

Citations

Apr 11, 2013·Gastroenterology Research and Practice·Chen-Shuan Chung, Hsiu-Po Wang
May 6, 2014·Biochimica Et Biophysica Acta·Yusuke HirakuMariko Murata
Dec 3, 2014·Best Practice & Research. Clinical Gastroenterology·M SerranoM Dinis-Ribeiro
Dec 3, 2014·Gastrointestinal Endoscopy·UNKNOWN ASGE Technology Committee
Jan 23, 2016·Clinica Chimica Acta; International Journal of Clinical Chemistry·Denise L Uettwiller-GeigerRobert L Fitzgerald
Nov 22, 2011·Surgical Oncology Clinics of North America·Rami El Abiad, Henning Gerke
Nov 26, 2010·Gastroenterology Clinics of North America·Chang-Qing Li, Yan-Qing Li
Jun 1, 2010·Surgical Pathology Clinics·Gregory Y Lauwers, Kamran Badizadegan
Feb 24, 2009·Gastrointestinal Endoscopy·Richard S KwonWilliam M Tierney
Mar 5, 2016·Gastrointestinal Endoscopy·Gwang Ha KimJoo Ha Hwang
Feb 21, 2016·Digestive Endoscopy : Official Journal of the Japan Gastroenterological Endoscopy Society·Manabu MutoHisao Tajiri
Aug 16, 2016·Gastrointestinal Endoscopy·Kyung Ho SongYoung Woo Kang
Mar 25, 2018·Journal of Digestive Diseases·Jing-Yuan FangUNKNOWN Chinese Society of Gastroenterology, Chinese Medical Association
Oct 17, 2014·World Journal of Gastroenterology : WJG·Debora CompareGerardo Nardone
Aug 11, 2020·World Journal of Gastroenterology : WJG·Alba PanareseEndrit Shahini
Sep 8, 2012·Current Opinion in Gastroenterology·Veronica BaptistaWahid Wassef
Jun 1, 2021·Gastrointestinal Endoscopy Clinics of North America·Andrew Canakis, Raymond Kim

❮ Previous
Next ❯

Related Concepts

Related Feeds

Atrophic Gastritis

Atrophic Gastritis is a process where gastric glandular cells are lost and replaced with firbous tissues, as a result of chronic inflammation. Learn more about Atrophic Gastritis here.