Evidence map›Paper›PMID 41448792›Full record

ArticleBMJ open respiratory research2025

Evaluation of biomarkers sTREM-1, procalcitonin and C reactive protein in the diagnosis of pleural infection.

Vanessa Adelia Alvarenga, Lisete Ribeiro Teixeira, Roberta Karla Barbosa Sales, Philippe Figueiredo Braga Colares, Carlos Sergio Rocha Silva, Evaldo Marchi, Milena Marques Pagliarelli Acencio

Abstract read
In one paragraph

Article in BMJ open respiratory research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Vanessa Adelia AlvarengaPulmonary Division, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil.
Lisete Ribeiro TeixeiraPulmonary Division, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil.
Roberta Karla Barbosa SalesPulmonary Division, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil.
Philippe Figueiredo Braga ColaresPulmonary Division, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil.
Carlos Sergio Rocha SilvaPulmonary Division, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil.
Evaldo MarchiJundiai Medicine College, Jundiai, Brazil.
Milena Marques Pagliarelli AcencioPulmonary Division, Instituto do Coracao (InCor), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil milena.acencio@hc.fm.usp.br.ORCID http://orcid.org/0000-0002-4624-1235

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diagnosis of complicated parapneumonic pleural effusion (CPPE), empyema and uncomplicated parapneumonic pleural effusion (UPPE) is vital in therapeutic management.

objectiveTo measure the pleural fluid concentrations of soluble triggering receptor expressed on myeloid cell-1 (sTREM-1), procalcitonin (PCT) and C reactive protein (CRP) to provide information for diagnosing and discriminating between CPPE and UPPE.

methodsRetrospective data analysis from February 2016 to December 2017, focused on pleural fluid analysis of patients with infectious (PPE, empyema and tuberculosis) and non-infectious (malignant and transudates) effusions.

resultsOver 224 pleural fluid samples collected, 29 were empyema, 48 CPPE, 31 UPPE, 35 tuberculous, 47 malignant and 34 transudates. The levels of sTREM-1 and PCT were significantly higher in empyema (3658±1474 and 1704±1027) and CPPE (2651±1058 and 841±667) and lower in transudates (p<0.001). CRP levels were significantly higher in empyema (88.8±61.5) and CPPE (83.8±42.6) than in other groups (p<0.001), with no difference between them.

conclusionThe study demonstrated higher sTREM-1, PCT and CRP levels in empyema and CPPE and lower levels in transudates. Both sTREM-1 and CRP showed a higher than 70% diagnostic accuracy between infectious and non-infectious pleural effusions and between CPPE and UPPE; however, not superior to LDH pleural fluid levels.

Indexed as

C-Reactive ProteinEmpyema, PleuralPleural EffusionProcalcitoninTriggering Receptor Expressed on Myeloid Cells-1AdultAgedAged, 80 and overBiomarkersDiagnosis, DifferentialExudates and TransudatesFemaleHumansMaleMiddle AgedRetrospective StudiesBiomarkersC-Reactive ProteinProcalcitoninTREM1 protein, humanTriggering Receptor Expressed on Myeloid Cells-1EmpyemaPleural DiseaseRespiratory Infection

Identifiers

PMID41448792
PMCPMC12742160

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.