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Quantitative Polymerase Chain Reaction (qPCR)-Based Rapid Diagnosis of Helicobacter pylori Infection and Antibiotic Resistance
Published on: July 28, 2023
Second Asia-Pacific Consensus Guidelines for Helicobacter pylori infection
K Ming Fock1, Peter Katelaris, Kentaro Sugano
1Division of Gastroenterology, Department of Medicine, Changi General Hospital, Singapore 529889. kwong_ming_fock@cgh.com.sg
Updated guidelines recommend Helicobacter pylori (H. pylori) eradication for functional dyspepsia, GERD patients on long-term PPIs, and unexplained anemia. A
Area of Science:
- Gastroenterology and Infectious Diseases
- Microbiology
- Public Health
Background:
- The Asia-Pacific Consensus Conference updated guidelines for Helicobacter pylori (H. pylori) management.
- Recognized expanded indications for H. pylori eradication beyond traditional uses.
Framework:
- H. pylori eradication is indicated for functional dyspepsia, long-term proton pump inhibitor (PPI) users with GERD, unexplained iron deficiency anemia, and idiopathic thrombocytopenic purpura.
- A population 'test and treat' strategy is recommended for gastric cancer prevention in high-incidence communities.
- Eradication is advised before long-term NSAID/aspirin use in high-risk patients.
Implementation:
- First-line therapy in Asia: 7-day PPI-based triple therapy (amoxicillin/metronidazole/clarithromycin).
- Bismuth-based quadruple therapy is an effective alternative.
- Increasing clarithromycin and metronidazole resistance impacts PPI-based triple therapy efficacy.
Implications:
- Salvage therapy options include standard triple, bismuth-based quadruple, levofloxacin-based, and rifabutin-based triple therapies.
- CYP2C19 genetic polymorphisms and smoking affect eradication success.
- Updated regional guidelines address evolving H. pylori resistance patterns and management strategies.
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