Evidence map›Paper›PMID 35596211›Full record

SynthesisAnnals of clinical microbiology and antimicrobials2022

Heteroresistance to clarithromycin and metronidazole in patients with a Helicobacter pylori infection: a systematic review and meta-analysis.

Ebrahim Kouhsari, Nourkhoda Sadeghifard, Arezoo Khadiv, Hojjat Sayadi, Taghi Amiriani, Sobhan Ghafourian, Hassan Valadbeigi, Marcela Krutova

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Annals of clinical microbiology and antimicrobials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
5.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Overcoming antibiotic-resistantWorld journal of gastroenterology · 2025
    Review
  4. Article
  5. JPGN reports · 2023
    Article
  6. OptimizingGut and liver · 2023
    Review
  7. Antibiotics (Basel, Switzerland) · 2023
    Review
  8. Whole Genome Sequencing for StudyingAntibiotics (Basel, Switzerland) · 2023
    Article
  9. Antibiotics (Basel, Switzerland) · 2023
    Review
  10. Editorial: The pathogenesis and treatment ofFrontiers in cellular and infection microbiology · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Ebrahim KouhsariLaboratory Sciences Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.
Nourkhoda SadeghifardClinical Microbiology Research Centre, Ilam University of Medical Sciences, Ilam, Iran.
Arezoo KhadivClinical Microbiology Research Centre, Ilam University of Medical Sciences, Ilam, Iran.
Hojjat SayadiNon-Communicable Diseases Research Centre, Ilam University of Medical Sciences, Ilam, Iran.
Taghi AmirianiGolestan Research Center of Gastroenterology and Hepatology, Golestan University of Medical Sciences, Gorgan, Iran.
Sobhan GhafourianClinical Microbiology Research Centre, Ilam University of Medical Sciences, Ilam, Iran.
Hassan ValadbeigiClinical Microbiology Research Centre, Ilam University of Medical Sciences, Ilam, Iran. hasan.valadbeigi@gmail.com.
Marcela KrutovaDepartment of Medical Microbiology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czech Republic.
Medical University of Ilam · IRGolestan University of Medical Sciences · IRIlam University · IRCharles University · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAntimicrobial resistance of H. pylori can lead to treatment failure. Importantly, several studies have reported on heteroresistance, i.e. the presence of resistant and susceptible H. pylori populations in the same sample and/or a difference in the susceptibility patterns between biopsy samples. This meta-analysis aims to provide comprehensive data on the prevalence of metronidazole and clarithromycin heteroresistance and the approaches to their detection. MATERIAL AND

methodsA systematic review was performed after the search of MEDLINE, Scopus and Web of Science. The study outcomes were the weighted pooled prevalence of heteroresistance to clarithromycin and metronidazole in H. pylori positive samples and/or isolates with a subanalysis by continent.

resultsA total of 22 studies that had investigated 3852 H. pylori positive patients were included in the meta-analysis. Heteroresistance to clarithromycin was reported in 20 studies, with a weighted pooled prevalence of 6.8% (95% CI 5.1-8.6; 3654 H. pylori positive patients; the substantial heterogeneity I

conclusionThe prevalence of heteroresistance to clarithromycin and/or metronidazole is not negligible and can be detected in approximately 7 and 14% of H. pylori positive samples, respectively. These findings highlight the need to raise the awareness of gastroenterologists and microbiologists to the heteroresistance to clarithromycin and metronidazole in patients with a H. pylori infection.

Indexed as

Helicobacter InfectionsHelicobacter pyloriAmoxicillinAnti-Bacterial AgentsClarithromycinDrug Resistance, BacterialHumansMetronidazoleMicrobial Sensitivity TestsAmoxicillinAnti-Bacterial AgentsClarithromycinMetronidazole

Identifiers

PMID35596211
PMCPMC9123761
OpenAlexW4281257656

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.