Clinical validation of Endofaster® for a rapid diagnosis of Helicobacter pylori infection

Rev Esp Enferm Dig. 2020 Jan;112(1):23-26. doi: 10.17235/reed.2019.6441/2019.

Abstract

Background: this study aimed to evaluate the diagnostic accuracy of the Endofaster® for the detection of Helicobacter pylori.

Methods: during upper gastrointestinal endoscopy, gastric juice was aspirated to perform an analysis using the Endofaster®. This test was considered as positive when the ammonium concentration was > 67 ppm, negative when < 57 ppm and weakly positive between 57 and 67. Biopsy specimens were also taken as the gold standard.

Results: among the 86 patients enrolled in the study, the Endofaster® result was positive in 23.7%, negative in 54.7% and weakly positive in 11.6%, whereas infection was detected via histology in 38.4% of patients. The accuracy was 81.4%, with a Kappa value of 0.57.

Conclusions: the Endofaster® could be useful to perform a rapid diagnosis of Helicobacter pylori infection (area under the curve = 0.81).

Publication types

  • Validation Study

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Ammonia / analysis*
  • Ammonia / metabolism
  • Area Under Curve
  • Bacteriological Techniques / instrumentation
  • Diagnostic Techniques, Digestive System / instrumentation*
  • Female
  • Gastric Juice / chemistry*
  • Helicobacter Infections / diagnosis*
  • Helicobacter pylori / metabolism*
  • Humans
  • Hydrogen-Ion Concentration
  • Male
  • Middle Aged
  • Prospective Studies
  • Sensitivity and Specificity
  • Urea / metabolism
  • Young Adult

Substances

  • Ammonia
  • Urea