Evidence map›Paper›PMID 32764620›Full record

ReviewNature reviews. Disease primers2020

Hypersensitivity pneumonitis.

Ulrich Costabel, Yasunari Miyazaki, Annie Pardo, Dirk Koschel, Francesco Bonella, Paolo Spagnolo, Josune Guzman, Christopher J Ryerson, Moises Selman

Abstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Disease primers, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 2 pooled it
11.1field-weighted citation impact, top 1% 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

70 citing papers in PubMed, 2 syntheses or guidelines pooled it, 151 citations in OpenAlex.

  1. Guideline
  2. Guideline
  3. Trial
  4. Article
  5. How experimental models have unlocked hidden mechanisms of hypersensitivity pneumonitis.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  6. Article
  7. Observational
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Summer-type hypersensitivity pneumonitis.Internal and emergency medicine · 2025
    Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review

10 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

9 authors at 8 institutions in 5 countries.

Ulrich CostabelCenter for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik, University Hospital, University of Essen, Essen, Germany. ulrich.costabel@rlk.uk-essen.de.
Yasunari MiyazakiDepartment of Respiratory Medicine, Tokyo Medical and Dental University, Tokyo, Japan.
Annie PardoFacultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico.
Dirk KoschelDepartment of Internal Medicine and Pneumology, Fachkrankenhaus Coswig, Centre for Pulmonary Diseases and Thoracic Surgery, Coswig, Germany.
Francesco BonellaCenter for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik, University Hospital, University of Essen, Essen, Germany.
Paolo SpagnoloRespiratory Disease Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padua, Italy.
Josune GuzmanGeneral and Experimental Pathology, Ruhr-University, Bochum, Germany.
Christopher J RyersonDepartment of Medicine, University of British Columbia, Vancouver, BC, Canada.
Moises SelmanInstituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas", Mexico City, Mexico.
Ruhrlandklinik · DEInstituto Nacional de Enfermedades Respiratorias · MXRuhr University Bochum · DETokyo Medical and Dental University · JPUniversidad Nacional Autónoma de México · MXUniversity Hospital Carl Gustav Carus · DEUniversity of British Columbia · CAUniversity of Padua · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypersensitivity pneumonitis (HP) is a complex syndrome caused by the inhalation of a variety of antigens in susceptible and sensitized individuals. These antigens are found in the environment, mostly derived from bird proteins and fungi. The prevalence and incidence of HP vary widely depending on the intensity of exposure, the geographical area and the local climate. Immunopathologically, HP is characterized by an exaggerated humoral and cellular immune response affecting the small airways and lung parenchyma. A complex interplay of genetic, host and environmental factors underlies the development and progression of HP. HP can be classified into acute, chronic non-fibrotic and chronic fibrotic forms. Acute HP results from intermittent, high-level exposure to the inducing antigen, usually within a few hours of exposure, whereas chronic HP mostly originates from long-term, low-level exposure (usually to birds or moulds in the home), is not easy to define in terms of time, and may occur within weeks, months or even years of exposure. Some patients with fibrotic HP may evolve to a progressive phenotype, even with complete exposure avoidance. Diagnosis is based on an accurate exposure history, clinical presentation, characteristic high-resolution CT findings, specific IgG antibodies to the offending antigen, bronchoalveolar lavage and pathological features. Complete antigen avoidance is the mainstay of treatment. The pharmacotherapy of chronic HP consists of immunosuppressive drugs such as corticosteroids, with antifibrotic therapy being a potential therapy for patients with progressive disease.

Indexed as

Alveolitis, Extrinsic AllergicBronchoalveolar LavageHumansImmunosuppressive AgentsIncidenceLungImmunosuppressive Agents

Identifiers

PMID32764620
OpenAlexW4211099881

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.