Background And Study Aims: Specialized columnar epithelium of Barrett's esophagus is a precursor of dysplasia and adenocarcinoma, and methylene blue selectively stains this type of epithelium. The present prospective study examined the detection of short-segment and long-segment Barrett's esophagus using methylene blue chromoendoscopy-directed biopsies, in comparison with biopsies directed using conventional endoscopic criteria.
Patients And Methods: Biopsies were obtained from macroscopically conspicous areas in the distal esophagus observed during conventional endoscopy in a total of 975 patients. Immediately after conventional biopsies, the distal esophagus was sprayed with methylene blue and directed biopsies were then obtained from the stained regions. All patients with a histologically established Barrett's esophagus underwent a second upper gastrointestinal endoscopy within 1 year in order to assess the reproducibility of the method.
Results: In a total of 3,900 conventional biopsy specimens (without staining), 54 specimens (1.4%) were found to show Barrett's esophagus and were confined to 16 of the 975 patients (1.6%). Of the total 130 directed biopsy specimens obtained during chromoendoscopy, 114 (87.7%) revealed Barrett's esophagus (P<0.00001) and were confined to 35 of the 975 patients (3.5%; P < or = 0.001). The findings were confirmed within 1 year in all dye-positive patients.
Conclusions: Chromoendoscopy with methylene blue appears to be an accurate, simple, safe, inexpensive, and reproducible method of detecting specialized columnar epithelium in Barrett's esophagus.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1055/s-2003-38768 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Computer-Assisted Classification of the Squamocolumnar Junction.
Gastrointest Endosc
January 2025
Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN. Electronic address:
Background And Aims: An irregular z-line is characterized by a squamocolumnar junction (SCJ) that extends proximally above the gastroesophageal junction (GEJ) by < 1 centimeter (cm), while Barrett's esophagus (BE) is defined as a columnar lined esophagus (CLE) that extends proximally by ≥1 cm with the presence of specialized intestinal metaplasia (IM) on biopsy. Measurement of CLE is most accurate for lengths ≥1 cm, and as such, guidelines do not recommend biopsy of an irregular z-line when seen on endoscopy. However, a CLE is often estimated by visual inspection rather than direct measurement, making this characterization imprecise.
View Article and Find Full Text PDFInvestigation of causal associations between cerebral cortical structure and Barrett's esophagus: insights from Mendelian randomization and meta-analysis.
J Thorac Dis
December 2024
Surgical Department, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
Background: Barrett's esophagus (BE) is a precancerous condition often associated with esophageal adenocarcinoma, influenced by both genetic and environmental factors. However, there is controversy regarding the causal relationship between cerebral cortical structures and BE, with recent studies suggesting a potential neurobiological component to its multifactorial etiology. This study aims to clarify this relationship by utilizing Mendelian randomization (MR) analysis to investigate the potential causal effects of cortical structure variations on BE risk.
View Article and Find Full Text PDFLong-term effect of Roux-en-Y gastric bypass versus sleeve gastrectomy on reflux and Barrett's oesophagus: a randomized controlled trial.
ANZ J Surg
January 2025
Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand.
Background: Laparoscopic sleeve gastrectomy (LSG) is a potentially refluxogenic operation while Laparoscopic Roux-en-Y Gastric Bypass (LRYGB) is regarded as an anti-reflux procedure. The aim of this study is to compare long-term incidence of Barrett's Oesophagus (BO) and gastroesophageal reflux disease (GORD) following LSG and LRYGB.
Methods: Participants of a double-blinded randomized controlled trial comparing banded LRYGB and LSG for remission of type 2 diabetes were contacted to take part.
[Status and prospect of esophageal cancer screening].
Zhonghua Zhong Liu Za Zhi
January 2025
Cancer Registry Office, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing100021, China.
Esophageal cancer is one of the global public health problems, which is a serious threat to life and health. Screening is not only an important main measures to reduce the incidence and mortality of esophageal cancer, but also an effective strategy for early prevention and early treatment. There are significant differences in the screening status of esophageal adenocarcinoma and esophageal squamous cell carcinoma cancer between China and abroad.
View Article and Find Full Text PDFCox proportional hazards regression reveals more than a 100-fold difference in cancer risk by the length of Barrett's esophagus in Japan.
J Gastroenterol
January 2025
Department of Gastroenterology, Akita University Graduate School of Medicine, Akita, Akita, Japan.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!