Evidence map›Paper›PMID 27296817›Full record

Observational studyRespiratory medicine2016

Etiology of parapneumonic effusion and pleural empyema in children. The role of conventional and molecular microbiological tests.

Katarzyna Krenke, Ewa Sadowy, Edyta Podsiadły, Waleria Hryniewicz, Urszula Demkow, Marek Kulus

Open access · greenAbstract readObservational Study
In one paragraph

Observational study in Respiratory medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Complicated pneumococcal pneumonia in the era of higher-valent pneumococcal conjugate vaccines: a systematic literature review and meta-analysis, 2001-2022.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
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  2. BinaxNOWClinical pediatrics · 2026
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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 3 institutions in 1 country.

Katarzyna KrenkeDepartment of Pediatric Pneumonology and Allergy, Medical University of Warsaw, Zwirki i Wigury 63A, 02-091 Warsaw, Poland. Electronic address: katarzynakrenke@gmail.com.
Ewa SadowyDepartment of Molecular Microbiology, National Medicines Institute, Chelmska 30/34, 00-725 Warsaw, Poland. Electronic address: ewasadowy@cls.edu.pl.
Edyta PodsiadłyPublic Pedriatric Teaching Hospital, Zwirki i Wigury 63A, 02-091 Warsaw, Poland. Electronic address: edyta.podsiadly@litewska.edu.pl.
Waleria HryniewiczDepartment of Epidemiology and Clinical Microbiology, National Medicines Institute, Chelmska 30/34, 00-725 Warsaw, Poland. Electronic address: waleria@cls.edu.pl.
Urszula DemkowDepartment of Laboratory Diagnostics and Clinical Immunology of Developmental Age, Medical University of Warsaw, Zwirki i Wigury 63A, 02-091 Warsaw, Poland. Electronic address: demkow@litewska.edu.pl.
Marek KulusDepartment of Pediatric Pneumonology and Allergy, Medical University of Warsaw, Zwirki i Wigury 63A, 02-091 Warsaw, Poland. Electronic address: marek.kulus@wum.edu.pl.
Medical University of Warsaw · PLNarodowy Instytut Leków · PLUniversity of Warsaw · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAn increasing incidence of parapneumonic effusion and pleural empyema (PPE/PE) has been reported in recent studies. As only few data on etiology of PPE/PE in Central Europe have been reported, we undertook a study on the etiology of PPE/PE in children, using both standard culture and molecular techniques.

methodsThis prospective study was conducted between June 2011 and December 2013. Consecutive children with PPE/PE complicating community acquired pneumonia, who required diagnostic/therapeutic thoracentesis were included. Blood and pleural fluid samples for microbiological cultures were collected. Molecular methods were applied to identify Streptococcus pneumonia, Haemophilus influenzae, Staphylococcus aureus, Streptococcus pyogenes, Mycoplasma pneumoniae, Chlamydophila pneumoniae, and respiratory viruses in pleural fluid.

resultsThe study group included 64 children, median age 4 (1-15). Seven of 64 (10.9%) blood cultures and 11 of 64 (17.2%) pleural fluid cultures revealed bacterial growth. The most common bacteria detected was S. pneumoniae (13 blood and pleural fluid samples from 11/64 (17.2%) children). DNA sequences of typical bacteria were found in 29/64 (45.3%) pleural fluid samples. S. pneumoniae was identified in 90% of these samples. The most common serotypes were: serotype 6B in 9/26 (36.6%), 19A in 6/26 (23%), serotype 3 in 3/26 (11.5%), 6A and 23F (both in 2/26 i.e. 7.7%) patients. Molecular methods identified atypical bacteria in 8/58 (13.8%) and respiratory viruses in 12/58 (20.7%) pleural fluid samples.

conclusionsS. pneumoniae, in particular serotype 6B and 19A, is the most common etiologic agent of PPE/PE in Polish children. The use of PCR significantly improves pathogen identification in pleural fluid.

Indexed as

Bacteriological TechniquesMolecular Diagnostic TechniquesAdministration, IntravenousAdolescentAnti-Infective AgentsChildChild, PreschoolChlamydophila pneumoniaeCommunity-Acquired InfectionsEmpyema, PleuralEuropeFemaleHaemophilus influenzaeHumansIncidenceInfantAnti-Infective AgentsPCRPleural effusionPneumococcal serotypesPneumoniaStreptococcus pneumoniae

Identifiers

PMID27296817
PMCPMC7126629
OpenAlexW2360443502

What OpenQuestion holds

Textmetadata
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.