View clinical trials related to Metaplasia.
Filter by:To assess diagnostic accuracy and clinical effectiveness including cost-effectiveness analysis of pCLE in patients after finishing the endoscopic treatment of BORN in detecting persistent/recurrent IM, recurrent neoplasia and buried glands.
This pilot clinical trial studies how well a swallowable sponge cell sampling device and next generation sequencing work in detecting esophageal cancer in patients with low or high grade dysplasia, Barrett esophagus, or gastroesophageal reflux disease. Checking biomarkers in abnormal esophageal cells using a swallowable sponge cell sampling device and next generation sequencing may improve diagnosis and treatment of esophageal cancer.
To analyze the genome pattern in human gastric Intestinal Metaplasia Mucosa and duodenal Mucosa.
Helicobacter pylori (H. pylori) infection has been associated with a development of atrophic gastritis and intestinal metaplasia. H. pylori related atrophic gastritis and intestinal metaplasia have been regarded as pre-malignant lesion. However, the role of H. pylori eradication treatment in the reversibility of atrophic gastritis and intestinal metaplasia has not been clearly defined. The aim of the present study was to investigate the relationship between H. pylori eradication and the reversibility of atrophic gastritis and intestinal metaplasia in Korean patients.
Real-time Diagnosis of Barrett's Esophagus: Comparing Confocal Laser Endomicroscopy with Conventional Histology for the Identification of Specialized Intestinal Metaplasia
The study is aimed to determine the potential of volatile marker testing for identification of gastrointestinal cancers (in particular - colorectal and gastric cancers), the related precancerous lesions in the stomach and colon. The study will be addressing the role of confounding factors, including lifestyle factors, diet, smoking as well as addressing the potential role of microbiota in the composition of exhaled volatile markers.
Subjects enrolled in this study will have biopsies obtained and sent to Dr. Fitzgerald's lab for analysis of a validated biomarker panel. Subjects will be stratified to either high or low risk of progression to esophageal adenocarcinoma (EAC) based on biomarker panel results. Biomarker panel results will not be communicated to sites. Subjects with low grade dysplasia will be offered the option of treatment (radiofrequency ablation (RFA)) as part of routine care. Subjects with low grade dysplasia who do not want RFA and subjects with no dysplasia will receive surveillance endoscopy in 1 year per routine care. All subjects will be administered a questionnaire seeking information about hypothetical willingness to be randomized to treatment or surveillance.
It is recognized that gastroscopy can miss intestinal metaplasia, dysplasia and early gastric cancer. This could conceivably be due to the fact that these lesions may only present as subtle mucosal changes on conventional white light endoscopy (WLE) and thus be easily missed. In narrow band imaging (NBI) a rotating interference narrow band filter is interposed after the xenon light source such that when the NBI mode is switched on, discrete blue and green wavelengths are used and this improves mucosal surface contrast and facilitates visualization of mucosal details. A new NBI system is available that allows brighter illumination. We hypothesize that bright -NBI is superior to WLE in detecting focal gastric lesions such as gastric intestinal metaplasia, dysplasia and early gastric cancer in subjects undergoing gastroscopy.
The aim of the present study was to propose a new pCLE classification of gastric pit patterns and vessel architecture, and to assess the accuracy and interobserver agreement of this new pCLE classification system in the stomach.
Serum pepsinogen (PG) levels are considered reliable markers for progression of atrophic gastritis with a stepwise reduction in the serum PG I level or PG I/II ratio. A combination of serum PG levels and Helicobacter pylori serology are used as a biomarker strategy for detection of individuals at increased risk of gastric neoplasm based on Correa's hypothesis. The investigators aimed to uncover whether this combination method could predict the risk of gastric neoplasms and the progression of chronic atrophic gastritis after 3 years. All the participants will be followed for an expected average of 3 years.