Evidence map›Paper›PMID 22135251›Full record

ArticleJournal of clinical microbiology2012

High frequency of Tropheryma whipplei in culture-negative endocarditis.

Walter Geissdörfer, Verena Moos, Annette Moter, Christoph Loddenkemper, Andreas Jansen, René Tandler, Andreas J Morguet, Florence Fenollar, Didier Raoult, Christian Bogdan and 1 more

Abstract read
In one paragraph

Article in Journal of clinical microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
–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

64 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Mindful diagnostics in culture-negative endocarditis: early noninvasive diagnosis ofAntimicrobial stewardship & healthcare epidemiology : ASHE · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. IDCases · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. A Dual-Pathogen Mitral Valve Endocarditis Caused byPathogens (Basel, Switzerland) · 2023
    Article
  20. Updates in Culture-Negative Endocarditis.Pathogens (Basel, Switzerland) · 2023
    Review

4 more citing papers are in PubMed but not listed here.

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

11 authors.

Walter GeissdörferMikrobiologisches Institut-Klinische Mikrobiologie, Immunologie und Hygiene, Friedrich Alexander Universität Erlangen-Nürnberg, Erlangen, Germany.
Verena Moos
Annette Moter
Christoph Loddenkemper
Andreas Jansen
René Tandler
Andreas J Morguet
Florence Fenollar
Didier Raoult
Christian Bogdan
Thomas Schneider

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

"Classical" Whipple's disease (cWD) is caused by Tropheryma whipplei and is characterized by arthropathy, weight loss, and diarrhea. T. whipplei infectious endocarditis (TWIE) is rarely reported, either in the context of cWD or as isolated TWIE without signs of systemic infection. The frequency of TWIE is unknown, and systematic studies are lacking. Here, we performed an observational cohort study on the incidence of T. whipplei infection in explanted heart valves in two German university centers. Cardiac valves from 1,135 patients were analyzed for bacterial infection using conventional culture techniques, PCR amplification of the bacterial 16S rRNA gene, and subsequent sequencing. T. whipplei-positive heart valves were confirmed by specific PCR, fluorescence in situ hybridization, immunohistochemistry, histological examination, and culture for T. whipplei. Bacterial endocarditis was diagnosed in 255 patients, with streptococci, staphylococci, and enterococci being the main pathogens. T. whipplei was the fourth most frequent pathogen, found in 16 (6.3%) cases, and clearly outnumbered Bartonella quintana, Coxiella burnetii, and members of the HACEK group (Haemophilus species, Actinobacillus actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, and Kingella kingae). In this cohort, T. whipplei was the most commonly found pathogen associated with culture-negative infective endocarditis.

Indexed as

Academic Medical CentersActinomycetales InfectionsAgedBacteriological TechniquesCohort StudiesDNA, BacterialDNA, RibosomalEndocarditis, BacterialFemaleGermanyHeart ValvesHistocytochemistryHumansImmunohistochemistryIncidenceIn Situ Hybridization, FluorescenceDNA, BacterialDNA, RibosomalRNA, Ribosomal, 16S

Identifiers

PMID22135251
PMCPMC3264169

What OpenQuestion holds

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Registered trials

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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.