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J Clin Microbiol. 1991 November; 29(11): 2587-2589

Comparative evaluation of three selective media and a nonselective medium for the culture of Helicobacter pylori from gastric biopsies.

Department of Clinical Pathology, Fairfield Infectious Diseases Hospital, Victoria, Australia.

ABSTRACT

Plating on solid media is the standard technique used in most laboratories for the isolation of Helicobacter pylori from gastric biopsies. Recently, various selective media were developed for this purpose. We compared and evaluated three selective media, Skirrow's, Dent's CP, and modified Glupczynski's Brussels campylobacter charcoal media, and chocolate agar medium for the isolation of H. pylori. Gastric biopsies taken from a total of 203 patients were plated in parallel on all four media. An isolation rate of 51% (104 of 203) was obtained with a combination of all four media. Of the 104, 92 (88%) were positive with Dent's medium and with modified Glupczynski's medium. Skirrow's medium gave the highest isolation rate, 96% (100 of 104). However, growth of H. pylori was scant (only one to five colonies) when growth occurred on Skirrow's medium alone. Overall, modified Glupczynski's medium provided significantly heavier growth. Chocolate agar medium yielded a 76% (79 of 104) positivity rate. We recommend the use of a combination of two selective media for the maximum recovery of H. pylori from antral biopsies.

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