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Related Experiment Videos

[Triple site biopsy under endoscopy].

N Yamada1, N Matsukura, T Matsuhisa

  • 1Department of Pathology, Nippon Medical School.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|February 24, 2001
PubMed
Summary
This summary is machine-generated.

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Supra-angular biopsies are more effective for detecting mucosal atrophy and intestinal metaplasia. Antral and corpus biopsies are suitable for evaluating inflammation and H. pylori infection.

Area of Science:

  • Gastroenterology
  • Pathology
  • Oncology

Background:

  • Accurate diagnosis of gastric mucosal conditions like atrophy and inflammation is crucial for preventing gastric cancer.
  • Helicobacter pylori (H. pylori) infection is a major risk factor for these conditions.
  • Optimal biopsy site selection is essential for reliable histopathological evaluation.

Purpose of the Study:

  • To compare the diagnostic yield of triple site biopsies (antrum, corpus, supraangle) for evaluating gastric mucosal atrophy, inflammation, and H. pylori infection.
  • To determine the most reliable biopsy site for detecting specific pathological changes.

Main Methods:

  • Simultaneous triple site biopsies were obtained from the antrum, corpus, and supraangle in 3002 Japanese patients.
  • Histopathological analysis was performed to assess the presence and severity of mucosal atrophy, inflammation, and intestinal metaplasia.

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  • H. pylori infection prevalence was evaluated across the different biopsy sites.

    • Main Results:

    • The prevalence of H. pylori infection showed no significant difference among the antrum, corpus, and supra-angular biopsy sites.
    • Detective rates for mucosal atrophy and intestinal metaplasia were significantly higher in supra-angular biopsies compared to antral and corpal biopsies.
    • Antral and corpal biopsies demonstrated comparable effectiveness in evaluating inflammation.

    Conclusions:

    • Supra-angular biopsy is the most reliable site for detecting mucosal atrophy and intestinal metaplasia.
    • Antral and corpal biopsies are suitable for assessing H. pylori infection and inflammation.
    • Optimizing biopsy site selection can improve the accuracy of diagnosing precancerous gastric lesions.