Stool antigen assay (HpSA) is less reliable than urea breath test for post‐treatment diagnosis of <scp>Helicobacter pylori</scp> infection

Abstract

HpSA has lower diagnostic value than 13C-UBT in the evaluation of the outcome of anti-H. pylori therapy. 13C-UBT remains the first-line diagnostic method to monitor eradication results. The use of HpSA should be reserved for those settings in which 13C-UBT is not available.