Helicobacter Pylori and Proton Pump Inhibitor

Distribution of Helicobacter Pylori According to the Use of Proton Pump Inhibitor

The purpose of this study is to know the distribution of HP in stomach before use of PPI, during use of PPI, and after stop of PPI.

Endoscopy and biopsy will be performed to investigate the distrubition of HP before, during, and after using PPI.

Inclusion Criteria:

1. Patients who are indicated to endoscopic resection due to gastric neoplasm
2. Aged between 19 to 65 years
3. Informed consent

Exclusion Criteria:

1. Previous history of HP eradication
2. Previous history of PPI use within 6 months
3. No HP infection