Evidence map›Paper›PMID 26932735›Full record

ArticleJournal of negative results in biomedicine2016

Comparison of serological methods with PCR-based methods for the diagnosis of community-acquired pneumonia caused by atypical bacteria.

Mariana Herrera, Yudy Alexandra Aguilar, Zulma Vanessa Rueda, Carlos Muskus, Lázaro Agustín Vélez

Open access · hybridAbstract readComparative Study
In one paragraph

Article in Journal of negative results in biomedicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Atypical pneumonia (Review).Experimental and therapeutic medicine · 2024
    Review
  5. Article
  6. Clinical and Laboratory Diagnosis of Legionella Pneumonia.Diagnostics (Basel, Switzerland) · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Frontiers in medicine · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Detection ofInfection and drug resistance · 2019
    Article
  16. Review
  17. Article
  18. Genotyping and macrolide resistance of Mycoplasma pneumoniae identified in children with community-acquired pneumonia in Medellín, Colombia.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2018
    Article
  19. Review
  20. Review
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

5 authors at 2 institutions in 1 country.

Mariana HerreraGrupo Investigador de Problemas en Enfermedades Infecciosas (GRIPE), Sede de Investigación Universitaria, Calle 62 # 52-59, Laboratorio 630, Universidad de Antioquia, Medellín, Colombia. marianah8@hotmail.com.
Yudy Alexandra AguilarGrupo Investigador de Problemas en Enfermedades Infecciosas (GRIPE), Sede de Investigación Universitaria, Calle 62 # 52-59, Laboratorio 630, Universidad de Antioquia, Medellín, Colombia. yudyagui@yahoo.com.
Zulma Vanessa RuedaUniversidad Pontificia Bolivariana, Medellín, Colombia. zulmaruedav@gmail.com.
Carlos MuskusPrograma de Estudio y Control de Enfermedades Tropicales (PECET), Universidad de Antioquia UdeA, Medellín, Colombia. carmusk@yahoo.com.
Lázaro Agustín VélezGrupo Investigador de Problemas en Enfermedades Infecciosas (GRIPE), Sede de Investigación Universitaria, Calle 62 # 52-59, Laboratorio 630, Universidad de Antioquia, Medellín, Colombia. velezlazaro@yahoo.com.
Universidad de Antioquia · COUniversidad Pontificia Bolivariana · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe diagnosis of community-acquired pneumonia (CAP) caused by Legionella pneumophila, Mycoplasma pneumoniae, and Chlamydophila pneumoniae is traditionally based on cultures and serology, which have special requirements, are time-consuming, and offer delayed results that limit their clinical usefulness of these techniques. We sought to develop a multiplex PCR (mPCR) method to diagnosis these bacterial infections in CAP patients and to compare the diagnostic yields obtained from mPCR of nasopharyngeal aspirates (NPAs), nasopharyngeal swabs (NPSs), and induced sputum (IS) with those obtained with specific PCR commercial kits, paired serology, and urinary antigen.

resultsA total of 225 persons were included. Of these, 10 patients showed serological evidence of L. pneumophila infection, 30 of M. pneumoniae, and 18 of C. pneumoniae; 20 individuals showed no CAP. The sensitivities were mPCR-NPS = 23.1%, mPCR-IS = 57.1%, Seeplex®-IS = 52.4%, and Speed-oligo®-NPA/NPS = 11.1%, and the specificities were mPCR-NPS = 97.1%, mPCR-IS = 77.8%, Seeplex®-IS = 92.6%, and Speed-oligo®-NPA/NPS = 96.1%. The concordance between tests was poor (kappa <0.4), except for the concordance between mPCR and the commercial kit in IS (0.67). In individuals with no evidence of CAP, positive reactions were observed in paired serology and in all PCRs.

conclusionsAll PCRs had good specificity but low sensitivity in nasopharyngeal samples. The sensitivity of mPCR and Seeplex® in IS was approximately 60%; thus, better diagnostic techniques for these three bacteria are required.

Indexed as

AdultAgedChlamydophila pneumoniaeCommunity-Acquired InfectionsFemaleHumansLegionella pneumophilaMaleMiddle AgedMultiplex Polymerase Chain ReactionMycoplasma pneumoniaePneumonia, BacterialPolymerase Chain Reaction

Identifiers

PMID26932735
PMCPMC4774004
OpenAlexW2290314651

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.