Iranian Journal of Pathology

The Evaluation of Diagnostic and Predictive Values of Helicobacter pylori Stool Antigen Test in Iranian Patients with Dyspepsia

Document Type : Original Research

Authors

Fahimeh Safarnezhad Tameshkel 1
Mohammad Hadi Karbalaie Niya 2
Zahedin Kheyri 3
Davood Azizi 4
Farzin Roozafzai 1
Samaneh Khorrami 5, 6

1 Gastrointestinal & Liver Disease Research Center (GILDRC), Iran University of Medical Sciences, Tehran, Iran

2 Dept. of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran

3 Dept. of Internal Medicine, Amiralmomenin hospital, Arak University of Medical Sciences, Arak, Iran

4 Dept. of Pathology, Amiralmomenin hospital, Arak University of Medical Sciences, Arak, Iran

5 Dept. of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran

6 Immunology Research Center, Institute of Immunology and Infectious diseases, Iran University of Medical Sciences, Tehran, Iran

https://doi.org/10.30699/ijp.13.1.39
Abstract
Background and Objectives: Iran, as a developing country, is experiencing high burdens of Helicobacter pylori (Hp)-associated non-communicable diseases. Hp stool antigen test (HpSA) is widely used as an inexpensive and feasible noninvasive method to diagnose Hp infection, instead of invasive approaches. The current study aimed at evaluating the diagnostic and predictive values of HpSA test for Hp infection in Iranian patients with dyspepsia.
Materials and methods: The current cross sectional study was performed on 100 patients with dyspepsia. Gastric mucosal specimens were taken, processed, and examined according to the standard protocols. Simultaneously, stool samples were obtained and sent to laboratory for further analyses. Hp stool antigen titers were assessed using enzyme-linked immunosorbent assay (ELISA) technique.
Results:Stool antigen titers were not associated with gender (P-value=0.284), but correlated to age (r=0.213, P-value=0.034).Considering0.385 as a cutoff point, the HpSA test had 80.4% sensitivity and 85.7% specificity.
Conclusion: Based on cost-effectiveness of HpSA test, the current study findings corroborated the use of HpSA test to detect and follow-up patients with Hp infection, as an alternative method to detect Hp rather than invasive procedures.

Keywords

Helicobacter pylori
Stool Antigen Test
Sensitivity
Specificity

Subjects

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Iranian Journal of Pathology
Volume 13, Issue 1
Winter 2018
Pages 39-44

  • Receive Date 19 July 2016
  • Revise Date 28 December 2016
  • Accept Date 01 May 2017

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