Evidence map›Paper›PMID 17072972›Full record

ReviewWorld journal of gastroenterology2006

Precise role of H pylori in duodenal ulceration.

Michael Hobsley, Frank I Tovey, John Holton

Open access · hybridAbstract readReview
In one paragraph

Review in World journal of gastroenterology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. Management of Helicobacter pylori infection: The Bhubaneswar Consensus Report of the Indian Society of Gastroenterology.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2021
    Article
  3. Article
  4. Clinical and experimental gastroenterology · 2019
    Article
  5. Review
  6. Restoring psychology's role in peptic ulcer.Applied psychology. Health and well-being · 2013
    Review
  7. Article
  8. A Case of Small Bowel Ulcer Associated with Helicobacter pylori.Pediatric gastroenterology, hepatology & nutrition · 2012
    Article
  9. A tribute to Dr. Frank I Tovey on his 90th birthday.World journal of gastroenterology · 2011
    Article
  10. Article
  11. Article
  12. Article
  13. 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

3 authors at 1 institution in 1 country.

Michael HobsleyDepartment of Surgery, Royal Free and University College Medical School, London, United Kingdom. m.hobsley@ucl.ac.uk
Frank I Tovey
John Holton
The Royal Free Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The facts that H pylori infection is commoner in duodenal ulcer (DU) patients than in the normal population, and that eradication results in most cases being cured, have led to the belief that it causes DU. However, early cases of DU are less likely than established ones to be infected. H pylori-negative cases are usually ascribed to specific associated factors such as non-steroidal anti-inflammatory drugs (NSAIDs), Crohn's disease, and hypergastrinaemia, but even after excluding these, several H pylori-negative cases remain and are particularly common in areas of low prevalence of H pylori infection. Moreover, this incidence of H pylori negative DU is not associated with a fall in overall DU prevalence when compared with countries with a higher H pylori prevalence. In countries with a high H pylori prevalence there are regional differences in DU prevalence, but no evidence of an overall higher prevalence of DU than in countries with a low H pylori prevalence. There is no evidence that virulence factors are predictive of clinical outcome. After healing following eradication of H pylori infection DU can still recur. Medical or surgical measures to reduce acid output can lead to long-term healing despite persistence of H pylori infection. Up to half of cases of acute DU perforation are H pylori negative. These findings lead to the conclusion that H pylori infection does not itself cause DU, but leads to resistance to healing, i.e., chronicity. This conclusion is shown not to be incompatible with the universally high prevalence of DU compared with controls.

Indexed as

Case-Control StudiesDuodenal UlcerDuodenumGastric AcidHelicobacter InfectionsHelicobacter pyloriHumansIntestinal MucosaPrevalenceRecurrence

Identifiers

PMID17072972
PMCPMC4100629
OpenAlexW2166596422

What OpenQuestion 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 OpenQuestion graph.