Evidence map›Paper›PMID 21695128›Full record

ArticlePloS one2011

PCR improves diagnostic yield from lung aspiration in Malawian children with radiologically confirmed pneumonia.

Enitan D Carrol, Limangeni A Mankhambo, Malcolm Guiver, Daniel L Banda, IPD Study Group, Brigitte Denis, Winifred Dove, Graham Jeffers, Elizabeth M Molyneux, Malcolm E Molyneux and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

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

  1. Pooled it
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  4. The threat of multidrug-resistant/extensively drug-resistant Gram-negative respiratory infections: another pandemic.European respiratory review : an official journal of the European Respiratory Society · 2022
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  5. The Etiology of Pneumonia From Analysis of Lung Aspirate and Pleural Fluid Samples: Findings From the Pneumonia Etiology Research for Child Health (PERCH) Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021
    Article
  6. TB Antigen-Stimulated CXCR3 Ligand Assay for Diagnosis of Tuberculous Lymphadenitis.International journal of environmental research and public health · 2021
    Article
  7. Article
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  9. Review
  10. Review
  11. The Enduring Challenge of Determining Pneumonia Etiology in Children: Considerations for Future Research Priorities.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2017
    Article
  12. Article
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  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Human bocavirus: lessons learned to date.Pathogens (Basel, Switzerland) · 2013
    Review
  20. 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

12 authors at 2 institutions in 3 countries.

Enitan D CarrolDepartment of Women's and Children's Health, The University of Liverpool, Institute of Child Health, Alder Hey Children's NHS Foundation Trust, Liverpool, United Kingdom. edcarrol@liv.ac.uk
Limangeni A Mankhambo
Malcolm Guiver
Daniel L Banda
IPD Study Group
Brigitte Denis
Winifred Dove
Graham Jeffers
Elizabeth M Molyneux
Malcolm E Molyneux
C Anthony Hart
Stephen M Graham
University of Liverpool · GBRoyal Children's Hospital · AU

Funding

Wellcome TrustWellcome Trust 074124/Z/04/Z
6 · The paper itself

Abstract

backgroundAccurate data on childhood pneumonia aetiology are essential especially from regions where mortality is high, in order to inform case-management guidelines and the potential of prevention strategies such as bacterial conjugate vaccines. Yield from blood culture is low, but lung aspirate culture provides a higher diagnostic yield. We aimed to determine if diagnostic yield could be increased further by polymerase chain reaction (PCR) detection of bacteria (Streptococcus pneumoniae and Haemophilus influenzae b) and viruses in lung aspirate fluid.

methodsA total of 95 children with radiological focal, lobar or segmental consolidation had lung aspirate performed and sent for bacterial culture and for PCR for detection of bacteria, viruses and Pneumocystis jirovecii. In children with a pneumococcal aetiology, pneumococcal bacterial loads were calculated in blood and lung aspirate fluid.

resultsBlood culture identified a bacterial pathogen in only 8 patients (8%). With the addition of PCR on lung aspirate samples, causative pathogens (bacterial, viral, pneumocystis) were identified singly or as co-infections in 59 children (62%). The commonest bacterial organism was S.pneumoniae (41%), followed by H. influenzae b (6%), and the commonest virus identified was adenovirus (16%), followed by human bocavirus (HBoV) (4%), either as single or co-infection.

conclusionsIn a select group of African children, lung aspirate PCR significantly improves diagnostic yield. Our study confirms a major role of S.pneumoniae and viruses in the aetiology of childhood pneumonia in Africa.

Indexed as

Polymerase Chain ReactionRadiologyAdolescentBacterial LoadChildChild, PreschoolCulture TechniquesFemaleHumansInfantLungMalawiMalePneumoniaPrognosisRespiratory Aspiration

Identifiers

PMID21695128
PMCPMC3114850
OpenAlexW2012293911

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.