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Accuracy of Seven Different Tests for the Diagnosis of Helicobacter pylori Infection and the Impact of H2-Receptor Antagonists on Test Results.
- Source :
- Scandinavian Journal of Gastroenterology; 4/20/98, Vol. 33 Issue 4, p364-369, 6p
- Publication Year :
- 1998
-
Abstract
- Background: In this study we compared the accuracy of seven diagnostic tests in diagnosing Helicobacter pylori infection. Methods: Over 1 year 351 consecutive dyspeptic patients were tested for H. pylori infection by means of antral biopsy specimens for the rapid urease test (RUT), culture, microscopy (acridine stain), and the laboratory urease test (LUT) and, in addition, with C urea breath test (UBT), IgG serology, and IgA serology (Orion Diagnostica Pyloriset New EIA-G and New EIA-A). The criterion for H. pylori infection was a minimum of three positive tests. Before being tested, 38% of the patients had used an H-receptor antagonist (HRA). Results: Two-hundred and twenty-four patients (64%) were H. pylori-positive. The sensitivity and specificity of the tests were as follows (percentages): RUT, 85, 99; culture, 93, 100; microscopy, 81, 98; LUT, 80, 100; UBT, 95, 95; IgG serology, 99, 91; and IgA serology, 88, 91. The accuracy of the RUT and LUT was reduced in patients receiving HRA therapy (P = 0.04 and 0.01, respectively). Conclusions: Culture, UBT, and IgG serology were all superior to the other four tests in diagnosing H. pylori infection. Invasive urease-based tests were less accurate in patients receiving HRAs. [ABSTRACT FROM AUTHOR]
- Subjects :
- HELICOBACTER pylori infections
SEROLOGY
UREASE
DIAGNOSIS
Subjects
Details
- Language :
- English
- ISSN :
- 00365521
- Volume :
- 33
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Scandinavian Journal of Gastroenterology
- Publication Type :
- Academic Journal
- Accession number :
- 7611577
- Full Text :
- https://doi.org/10.1080/00365529850170982