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New Technology to Differentiate Normal Gastric Mucosa From Helicobacter Pylori Associated Gastritis and Gastric Atrophy

NCT02597517 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 72

Last updated 2016-05-03

No results posted yet for this study

Summary

Endoscopy is a tool that has greatly influenced gastroenterological diagnosis. However, conventional endoscopy is limited to detecting lesions on the basis of gross morphological changes and therefore a certainly diagnosis depends on biopsy sampling of macroscopically obvious endoscopic features, or blind biopsy sampling of normal appearing mucosa with the risk of missed pathology and sampling errors.

Gastric cancer is the second most common cause of cancer related death. One of the main roles of upper gastrointestinal endoscopy is to identify gastric cancer at an early stage. The importance of identifying H. pylori infection is because it plays a very important role in gastric carcinogenesis, progressing from chronic gastritis through atrophic gastritis, intestinal metaplasia, dysplasia and finally cancer. The importance of recognition a precancerous gastric lesion is because we can detect most tumors at an early stage and improve the survival.

Most studies conclude that it is difficult to diagnose H. pylori related gastritis and gastric atrophy on the basis of endoscopic findings. Histology is therefore currently considered to be the gold standard for detecting H. pylori infection. The reliability of detecting H. pylori infection histologically depends on the site, number, and size of gastric biopsy specimens, as well as on expertise in staining and visualizing the bacteria. Considerable error also occurs in identifying gastric atrophy using blind biopsy sampling, and neither the original nor the revised version of the Sydney system reliably identifies more than half the cases in patients with confirmed gastric atrophy.

Conditions

  • Gastritis
  • Helicobacter Pylori Associated Gastritis
  • Atrophic Gastritis

Interventions

DEVICE

Digital chromoendoscopy and magnification

After the gastric body mucosal evaluation with white light endoscopy, the Optical Enhancement chromoendoscopy and magnification will be used for a more detailed evaluation of the subepithelial capillary network, the collecting venules and mucosal pits

Sponsors & Collaborators

  • Instituto Ecuatoriano de Enfermedades Digestivas

    lead OTHER

Principal Investigators

  • Carlos A Robles-Medranda, MD · Ecuadorian Institute of Digestive Diseases

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-11-30
Primary Completion
2016-04-30
Completion
2016-05-31

Countries

  • Ecuador

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02597517 on ClinicalTrials.gov