Yi-Ning Xiang

Optimal post-gastroscopy timing of the urea [14C] breath test for Helicobacter pylori diagnosis: a histopathology-anchored diagnostic accuracy study

Background Helicobacter pylori is a major cause of gastric carcinogenesis, and accurate detection of active infection guides eradication therapy and cancer prevention. The urea [14C] breath test (UBT) is widely used, but its reliability and optimal timing when performed on the same day after gastroscopy are uncertain....