Evidence map›Paper›PMID 25056978›Full record

ArticleBMJ open2014

Clinical significance of low forced expiratory flow between 25% and 75% of vital capacity following treated pulmonary tuberculosis: a cross-sectional study.

Eric Walter Pefura-Yone, Andre Pascal Kengne, Pierre Eugene Tagne-Kamdem, Emmanuel Afane-Ze

Abstract read
In one paragraph

Article in BMJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 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

17 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Post-tuberculosis lung impairment: systematic review and meta-analysis of spirometry data from 14 621 people.European respiratory review : an official journal of the European Respiratory Society · 2023
    Pooled it
  3. Is there a rationale for pulmonary rehabilitation following successful chemotherapy for tuberculosis?Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
    Pooled it
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Post-tuberculosis lung disease: a comparison of Brazilian, Italian, and Mexican cohorts.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Tuberculosis and lung damage: from epidemiology to pathophysiology.European respiratory review : an official journal of the European Respiratory Society · 2018
    Review
  14. Article
  15. Article
  16. Article
  17. Chronic symptoms and pulmonary dysfunction in post-tuberculosis Brazilian patients.The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases
    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

4 authors.

Eric Walter Pefura-YoneFaculty of Medicine and Biomedical Sciences, Department of Internal Medicine and Subspecialties, University of Yaounde I, Yaounde, Cameroon Pneumology Service, Yaounde Jamot Hospital, Yaounde, Cameroon.
Andre Pascal KengneSouth African Medical Research Council and University of Cape Town, Cape Town, South Africa.
Pierre Eugene Tagne-KamdemFaculty of Medicine and Biomedical Sciences, Department of Internal Medicine and Subspecialties, University of Yaounde I, Yaounde, Cameroon.
Emmanuel Afane-ZeFaculty of Medicine and Biomedical Sciences, Department of Internal Medicine and Subspecialties, University of Yaounde I, Yaounde, Cameroon Pneumology Service, Yaounde Jamot Hospital, Yaounde, Cameroon.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe aim of this study was to assess the prevalence and determinants of post-tuberculosis chronic respiratory signs, as well as the clinical impact of a low forced expiratory flow between 25% and 75% (FEF25-75%) in a group of individuals previously treated successfully for pulmonary tuberculosis.

designThis was a cross-sectional study involving individuals in their post-tuberculosis treatment period. They all underwent a spirometry following the 2005 criteria of the American Thoracic Society/European Respiratory Society. Distal airflow obstruction (DAO) was defined by an FEF25-75% <65% and a ratio forced expiratory volume during the first second (FEV1)/forced vital capacity (FVC) ≥ 0.70. Logistic regression models were used to investigate the determinants of persisting respiratory symptoms following antituberculous treatment.

settingThis study was carried out in the tuberculosis diagnosis and treatment centre at Yaounde Jamot Hospital, which serves as a referral centre for tuberculosis and respiratory diseases for the capital city of Cameroon (Yaounde) and surrounding areas.

participantsAll consecutive patients in their post-tuberculosis treatment period were consecutively enrolled between November 2012 and April 2013.

resultsOf the 177 patients included, 101 (57.1%) were men, whose median age (25th-75th centiles) was 32 (24-45.5) years. At least one chronic respiratory sign was present in 110 (62.1%) participants and DAO was found in 67 (62.9%). Independent determinants of persisting respiratory signs were the duration of symptoms prior to tuberculosis diagnosis higher than 12 weeks (adjusted OR 2.91; 95% CI 1.12 to 7.60, p=0.029) and presence of DAO (2.22; 1.13 to 4.38, p=0.021).

conclusionsFEF25-75%<65% is useful for the assessment and diagnosis of post-tuberculous DAO. Mass education targeting early diagnosis of pulmonary tuberculosis can potentially reduce the prevalence of post-tuberculosis respiratory signs and distal airflow obstruction.

Indexed as

Vital CapacityAdultChronic DiseaseCross-Sectional StudiesFemaleHumansMaleMiddle AgedPrevalenceRespiration DisordersTuberculosis, PulmonaryYoung Adult

Identifiers

PMID25056978
PMCPMC4120340

What OpenQuestion holds

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LicenceCC BY-NC
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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.