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Evaluation of staining methods for identifying Campylobacter pylori
E Madan1, J Kemp, T U Westblom
1Marshall University School of Medicine, Department of Pathology, Huntington, West Virginia 25702.
Abstract:
Campylobacter pylori has been implicated in the pathogenesis of peptide ulcer disease. The rapid identification of this organism may depend upon histologic diagnosis, because culture methods are complex and require a minimum of seven days in order to identify a negative specimen. The purpose of this study was to determine which stain used to identify this organism was the most cost-effective and easiest to perform and interpret on a routine basis. Sixty-one consecutive gastric antral biopsies were stained with hematoxylin and eosin, Giemsa, Brown-Brenn, and Warthin-Starry, with 23 of the cases stained by Brown-Hopps. Of the stains tested, the Wright-Giemsa was the easiest to perform. The organisms on the Wright-Giemsa showed a smooth, uniform purple color, whereas the Warthin-Starry gave the organism a granular appearance that at times could be confused for silver precipitate. Both the Wright-Giemsa and Brown-Hopps stain had the highest degree of identification of the organism (defined by percent positivity). The routine use of the Wright-Giemsa stain for identification of C. pylori in antral biopsies is recommended.
Insights
Wright-Giemsa stain is recommended for identifying Campylobacter pylori (C. pylori) in gastric biopsies. This method is cost-effective, easy to perform, and provides clear results for diagnosing peptic ulcer disease.
Area of Science:
- Gastroenterology
- Histopathology
- Microbiology
Background:
- Campylobacter pylori (C. pylori) is linked to peptic ulcer disease pathogenesis.
- Rapid identification of C. pylori is crucial for effective treatment.
- Traditional culture methods for C. pylori are time-consuming and complex.
Purpose of the Study:
- To evaluate the cost-effectiveness and ease of performance and interpretation of various stains for C. pylori identification.
- To determine the optimal staining method for routine histologic diagnosis of C. pylori in gastric biopsies.
Main Methods:
- Sixty-one gastric antral biopsies were analyzed.
- Stains used included hematoxylin and eosin, Giemsa, Brown-Brenn, Warthin-Starry, and Brown-Hopps.
- Wright-Giemsa stain was assessed for ease of performance, clarity of organism morphology, and identification accuracy.
Main Results:
- Wright-Giemsa stain was the easiest to perform and interpret.
- C. pylori appeared as smooth, uniform purple on Wright-Giemsa, unlike the granular Warthin-Starry.
- Wright-Giemsa and Brown-Hopps stains demonstrated the highest identification rates for C. pylori.
Conclusions:
- Wright-Giemsa stain is a reliable and efficient method for identifying C. pylori in gastric biopsies.
- Routine use of Wright-Giemsa stain is recommended for histologic diagnosis of C. pylori.
- This staining method aids in the rapid diagnosis of peptic ulcer disease associated with C. pylori.