The Associations Between the Gastric Mucosal Pathology and the Eradication Rate of H.Pylori :A Multicenter Study

Inclusion Criteria: * Patients, aged between 18 and 70 years old, with positive H. pylori infection that was not eradicated by previous therapies are included. The H. pylori infection is confirmed by the positive rapid urease test or 13C-breath test. Exclusion Criteria: * Patients with significant underlying disease including liver, cardiac, pulmonary, and renal diseases, neoplasia, coagulopathy and genetic diseases, history of gastric surgery, pregnancy, breast-feeding, active gastrointestinal bleeding, patient with peptic ulcer, the use of PPI, NSAID or antibiotics during the 4 weeks prior to enrolment, and previous history of allergic reactions to any of the medications used in this protocol. Patients previously treated with H. pylori eradication regimens or those unwilling to participate in the study were also excluded.