Antigen stool test for assessment of <i>Helicobacter pylori</i> infection in patients with upper gastrointestinal bleeding

Abstract

The diagnostic accuracy, in particular the sensitivity, of the HpSA stool test is reduced by upper gastrointestinal bleeding. The positive predictive value of 89%, however, justifies the initiation of eradication therapy on the basis of a positive stool test. A negative test result should be confirmed by a further diagnostic method.