PMID- 34382277 OWN - NLM STAT- MEDLINE DCOM- 20211015 LR - 20211015 IS - 1523-5378 (Electronic) IS - 1083-4389 (Linking) VI - 26 IP - 5 DP - 2021 Oct TI - Favorable outcomes of rescue second- or third-line culture-based Helicobacter pylori eradication treatment in areas of high antimicrobial resistance. PG - e12844 LID - 10.1111/hel.12844 [doi] AB - BACKGROUND: Failure of second or third-line eradication treatment against Helicobacter pylori (H. pylori) is principally caused by antimicrobial resistance and reduced treatment adherence. AIMS: To evaluate the efficacy and safety of culture-based rescue eradication treatments in patients who have previously experienced failed eradication treatment. METHODS: Patients who had persistent H. pylori infection following at least one eradication treatment were recommended to undergo culture analysis to determine the minimal inhibitory concentrations of various antimicrobials via endoscopic resection. Consenting patients were assigned one of four therapeutic treatments based on an algorithm determined by antimicrobial resistance. These treatments consisted of 7 or 14-day administration of clarithromycin-containing proton pump inhibitor (PPI) triple therapy; esomeprazole, moxifloxacin, and amoxicillin (MEA) therapy; esomeprazole, bismuth, metronidazole, and tetracycline (quadruple) therapy; or lansoprazole, rifabutin, and amoxicillin (RLA) therapy. Eradication efficacy, adherence, and adverse events were assessed aside clinical outcomes. RESULTS: A total of 132 patients were enrolled, with 84 patients completing the study. The overall resistance rates to amoxicillin, clarithromycin, metronidazole, and moxifloxacin were 13.1%, 83.3%, 47.6%, and 71.4%, respectively. The patients were allocated to the PPI triple (n = 11), MEA (n = 15), quadruple (n = 53), or RLA triple (n = 5) therapy group. The eradication rates in the intention-to-treat and per-protocol analyses were 90.5% (76 of 84 patients) and 93.8% (76 of 81 patients), respectively. Nausea was the most frequent adverse event (25.0%). CONCLUSIONS: As a rescue therapy, culture-based susceptibility-guided eradication treatment was both effective and safe, even for patients exhibiting high antimicrobial resistance. CI - (c) 2021 John Wiley & Sons Ltd. FAU - Lee, Jung Won AU - Lee JW AD - Department of Internal Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea. FAU - Kim, Nayoung AU - Kim N AUID- ORCID: 0000-0002-9397-0406 AD - Department of Internal medicine, Seoul National University Bundang Hospital, Seongnam, South Korea. AD - Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea. FAU - Nam, Ryoung Hee AU - Nam RH AD - Department of Internal medicine, Seoul National University Bundang Hospital, Seongnam, South Korea. FAU - Jang, Jae Young AU - Jang JY AD - Department of Internal medicine, Seoul National University Bundang Hospital, Seongnam, South Korea. FAU - Choi, Yonghoon AU - Choi Y AD - Department of Internal medicine, Seoul National University Bundang Hospital, Seongnam, South Korea. FAU - Lee, Dong Ho AU - Lee DH AD - Department of Internal medicine, Seoul National University Bundang Hospital, Seongnam, South Korea. AD - Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea. LA - eng GR - 06-2019-001/Seoul National University Bundang Hospital Research fund./ GR - 06-2020-184/Seoul National University Bundang Hospital Research fund./ PT - Journal Article DEP - 20210812 PL - England TA - Helicobacter JT - Helicobacter JID - 9605411 RN - 0 (Anti-Bacterial Agents) RN - 0 (Anti-Infective Agents) RN - 0 (Proton Pump Inhibitors) RN - 140QMO216E (Metronidazole) RN - 804826J2HU (Amoxicillin) RN - H1250JIK0A (Clarithromycin) SB - IM MH - Amoxicillin/therapeutic use MH - Anti-Bacterial Agents/adverse effects MH - *Anti-Infective Agents/therapeutic use MH - Clarithromycin/therapeutic use MH - Drug Resistance, Bacterial MH - Drug Therapy, Combination MH - *Helicobacter Infections/drug therapy MH - *Helicobacter pylori MH - Humans MH - Metronidazole/adverse effects MH - Proton Pump Inhibitors/adverse effects MH - Treatment Outcome OTO - NOTNLM OT - Helicobacter pylori OT - antibiotics OT - eradication OT - rescue therapy OT - resistance EDAT- 2021/08/13 06:00 MHDA- 2021/10/16 06:00 CRDT- 2021/08/12 06:54 PHST- 2021/08/02 00:00 [revised] PHST- 2021/06/18 00:00 [received] PHST- 2021/08/03 00:00 [accepted] PHST- 2021/08/13 06:00 [pubmed] PHST- 2021/10/16 06:00 [medline] PHST- 2021/08/12 06:54 [entrez] AID - 10.1111/hel.12844 [doi] PST - ppublish SO - Helicobacter. 2021 Oct;26(5):e12844. doi: 10.1111/hel.12844. Epub 2021 Aug 12.