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Related Experiment Videos

Helicobacter pylori detection: a quality and cost analysis

B E Kolts1, B Joseph, S R Achem

  • 1Department of Medicine, University of Florida Health Science Center, Jacksonville.

The American Journal of Gastroenterology
|May 1, 1993
PubMed
Summary

Histopathologic interpretation of hematoxylin and eosin (H&E) stains is a common method for identifying Helicobacter pylori. The CLOtest offers a rapid, cost-effective alternative with comparable accuracy to experienced pathologists.

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Area of Science:

  • Medical Diagnostics
  • Gastroenterology
  • Pathology

Background:

  • Histopathologic interpretation of hematoxylin and eosin (H&E) stained endoscopic biopsies is a standard method for detecting Helicobacter pylori.
  • Limited data exists on the accuracy of H&E staining and cost-effectiveness of alternative diagnostic methods.

Purpose of the Study:

  • Compare sensitivities and specificities of H&E, Warthin-Starry silver, Giemsa stains, and CLOtest for H. pylori identification.
  • Evaluate the impact of pathologist experience on H&E stain accuracy.
  • Assess diagnostic turnaround time and patient charges for each method.

Main Methods:

  • Evaluated 94 consecutive cases using H&E, Warthin-Starry silver, Giemsa stains, and CLOtest.
  • Utilized silver stain or a combination of tests as the diagnostic standard.

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  • Compared H&E interpretation by rotating pathology faculty versus an experienced pathologist.

    • Main Results:

    • Rotating pathologists' H&E interpretation showed low sensitivity and specificity.
    • Silver and Giemsa stains demonstrated equal sensitivity, with silver stain being more specific.
    • CLOtest was less sensitive but equally specific compared to silver and Giemsa stains.
    • An experienced pathologist significantly improved H&E sensitivity.

    Conclusions:

    • H&E stain accuracy for H. pylori detection is influenced by pathologist experience.
    • The CLOtest is a viable, rapid, and cost-effective alternative to H&E staining.
    • Experienced pathologists enhance H&E stain utility in H. pylori diagnosis.