Evidence map›Paper›PMID 29956896›Full record

ArticleRevista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia2018

Role of Pneumocystis jirovecii in patients with different pulmonary underlying condition using a nested-PCR.

L Martínez Lamas, M T Pérez Rodríguez, I Álvarez Ramos, M E Bouza Soage, M P Figueroa Lamas, M Álvarez Fernández

Open access · greenAbstract read
In one paragraph

Article in Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 25% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Saudi journal of biological sciences · 2020
    Article
  2. Role ofExperimental and therapeutic medicine · 2020
    Article
  3. 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

6 authors at 1 institution in 1 country.

L Martínez LamasLucía Martínez Lamas, Hospital Meixoeiro. EOXI Vigo, C/Camiño do Miexoeiro s/n, CP: 36200 Vigo. Pontevedra. Galicia. Spain. lucia.martinez.lamas@sergas.es.
M T Pérez Rodríguez
I Álvarez Ramos
M E Bouza Soage
M P Figueroa Lamas
M Álvarez Fernández
University Hospital Complex Of Vigo · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe prevalence of Pneumocystis jirovecii colonization and its role in pulmonary disease remains unclear. PCR methods have shown an improved sensitivity in the detection of this fungus. It has been suggested that the PCR results be combined with another test such as IFA to create a diagnostic algorithm.

methodsA multiplex nested-PCR procedure with a 16S rRNA gene as the internal amplification control was evaluated to determine the role of P. jirovecii in pulmonary disease.

resultsA 20% of the 199 bronchoalveolar lavage samples were PCR-positive, 13.5% samples were PCR-inhibited, and the rate of Pneumocystis-colonisation was 6.4%. The sensitivity, specificity, positive predictive value and negative predictive value of the nested-PCR were 100%, 93%, 70% and 100%, respectively. The sensitivity of the nested-PCR was higher than the current "gold standard" immunofluorescence assay (IFA) (p< 0.0001). PCR-negative and PCR-positive patients did not show any clinical or radiological differences in the medical variables studied.

conclusionsPCR could help the diagnosis of Pneumocystis pulmonary disease given the high negative predictive value of the technique. P. jirovecii DNA can frequently be detected in healthy population, so the analysis of the patient medical history is critical to make the correct clinical decision.

Indexed as

Pneumocystis cariniiAgedAged, 80 and overAlgorithmsBronchoalveolar Lavage FluidDNA, BacterialFemaleHumansLung DiseasesMaleMiddle AgedPneumonia, PneumocystisPolymerase Chain ReactionPredictive Value of TestsRNA, BacterialRNA, Ribosomal, 16SDNA, BacterialRNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID29956896
PMCPMC6172691
OpenAlexW2907066095

What OpenQuestion holds

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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.