Evidence map›Paper›PMID 26923948›Full record

ArticleDigestive diseases and sciences2016

Helicobacter pylori Clarithromycin Resistance and Treatment Failure Are Common in the USA.

Jason Y Park, Kerry B Dunbar, Midori Mitui, Christina A Arnold, Dora M Lam-Himlin, Mark A Valasek, Irene Thung, Chinemerem Okwara, Elizabeth Coss, Byron Cryer and 1 more

Abstract read
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In one paragraph

Article in Digestive diseases and sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

47 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
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  8. Molecular tools of antibiotic resistance forFrontiers in gastroenterology (Lausanne, Switzerland) · 2024
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  11. Novel Mutations Conferring Amoxicillin Resistance inAntibiotics (Basel, Switzerland) · 2023
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  12. Review
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  18. Increased Antibiotic Resistance in Children withPathogens (Basel, Switzerland) · 2022
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  19. Two New Fatty Acid Derivatives, Omphalotols A and B and Anti-Pharmaceuticals (Basel, Switzerland) · 2022
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  20. Racial Differences inGastro hep advances · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Jason Y ParkDepartment of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, USA. jason.park@childrens.com.
Kerry B DunbarMedical Service, Dallas Veterans Affairs Medical Center, Dallas, TX, USA.
Midori MituiDepartment of Pathology, Children's Health Dallas, 1935 Medical District Drive, Dallas, TX, 75235, USA.
Christina A ArnoldDepartment of Pathology, Ohio State University Wexner Medical Center, Columbus, OH, USA.
Dora M Lam-HimlinDepartment of Pathology and Lab Medicine, Mayo Clinic, Arizona, Scottsdale, AZ, USA.
Mark A ValasekDivision of Anatomic Pathology, Department of Pathology, University of California, San Diego, San Diego, CA, USA.
Irene ThungDivision of Anatomic Pathology, Department of Pathology, University of California, San Diego, San Diego, CA, USA.
Chinemerem OkwaraDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Elizabeth CossDivision of Gastroenterology and Hepatology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
Byron CryerMedical Service, Dallas Veterans Affairs Medical Center, Dallas, TX, USA.
Christopher D DoernDepartment of Pathology, Virginia Commonwealth University Health System, Richmond, VA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHelicobacter pylori antibiotic resistance leads to frequent treatment failure. However, the current US prevalence of H. pylori clarithromycin resistance and treatment failure is unknown.

aimsTo determine the prevalence of clarithromycin-resistant H. pylori and its impact on treatment failure in the USA.

methodsA multicenter, retrospective, cohort study for clarithromycin-resistant H. pylori was conducted over four academic medical centers in different geographic regions of the USA. Gastric biopsy material, residual from standard clinical pathologic examination, was examined for clarithromycin resistance by DNA sequencing of H. pylori 23S rRNA.

resultsOne hundred and twenty-four cases of H. pylori gastritis were examined from medical centers in four different geographic regions of the USA. The overall prevalence of clarithromycin resistance was 32.3 % (range 23.1-45.8 %). There was no significant difference in the prevalence of clarithromycin resistance by study site, gender, age, or race/ethnicity. In a subset of 67 patients that had clinical follow-up data, the overall prevalence of clarithromycin resistance was 31.3 %. There was a 2.9-fold increase (p = 0.002) in treatment failure for cases with clarithromycin resistance (57.1 %) compared to wildtype H. pylori (19.6 %).

conclusionsH. pylori clarithromycin resistance in the USA exceeds the estimated 20 % prevalence compatible with successful empiric antibiotic therapy. This resistance resulted in a significant rate of treatment failure in all sites surveyed. Empiric therapy in the USA should be used with caution until there is better regional or local determination of H. pylori antibiotic resistance.

Indexed as

AdolescentAdultAgedAged, 80 and overAmoxicillinAntacidsAnti-Bacterial AgentsBismuthClarithromycinCohort StudiesDrug Resistance, BacterialDrug Therapy, CombinationFemaleGastric MucosaGastritisHelicobacter InfectionsAmoxicillinAntacidsAnti-Bacterial AgentsBismuthClarithromycinMetronidazoleProton Pump InhibitorsRNA, Ribosomal, 23S23S rRNAAntibiotic resistanceClarithromycinHelicobacter pyloriTreatment failure

Identifiers

What Socratic holds

Textmetadata
Read underepoch 390

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 Socratic graph.