This study aims to evaluate:
1. the first line H. pylori eradication rate of high dose dual therapy with 14 days rabeprazole 20 mg qid, plus amoxicillin 500 mg qid (HDDT group) comparing to the clarithromycin-based triple therapy with 14 days clarithromycin 500 mg bid, amoxicillin 1000mg bid , and
Purpose of the research:
- To determine the onset of effective analgesia (Numerical Rating Scale (NRS) for pain = 1/10 in minutes with the modified CSE and DPE techniques, which is our primary outcome.
- To assess block quality (time to T10 sensory block, motor block, asymmetric block, inadequate