[Stool antigen test for initial Helicobacter pylori diagnosis and for confirmation of eradication after therapy].

Background: : Recently, a new diagnostic method based on the detection of Helicobacter pylori antigen in stools (HpSA) has been developed. Our aim was to prospectively evaluate the accuracy of HpSA both in the initial diagnosis of H. pylori infection and in the confirmation of the eradication after treatment.