Volume 46, Issue 2 pp. 179-183
Original Article

A bedside assay to detect streptococcus pneumoniae in children with empyema

Roxanne E. Strachan BN

Roxanne E. Strachan BN

Department of Respiratory Medicine, Sydney Children's Hospital, Randwick, Australia

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Anita Cornelius FRACP

Anita Cornelius FRACP

Department of Paediatric and Neonatal Intensive Care, Royal Hobart Hospital, Hobart, Australia

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Gwendolyn L. Gilbert MD BS, FRACP, FRCPA, M. Bioethics

Gwendolyn L. Gilbert MD BS, FRACP, FRCPA, M. Bioethics

Centre for Infectious Diseases and Microbiology, Institute of Clinical Pathology and Medical Research, Westmead, Australia

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Tanya Gulliver FRACP

Tanya Gulliver FRACP

Paediatric/Respiratory Department, John Hunter Hospital, Newcastle, Australia

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Andrew Martin MD FRACP

Andrew Martin MD FRACP

Department of General Paediatrics, Princess Margaret Hospital for Children, Subiaco, Australia

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Tim McDonald MBBS, FRACP

Tim McDonald MBBS, FRACP

Department of Paediatrics and Child Health, The Canberra Hospital, Woden, Australia

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Gillian M. Nixon MD, MBChB, FRACP

Gillian M. Nixon MD, MBChB, FRACP

Department of Respiratory and Sleep Medicine, Monash Medical Centre, Ritchie Centre for Baby Health Research, Monash Institute of Medical Research, Clayton, Australia

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Rob Roseby MBBS (hons) FRACP

Rob Roseby MBBS (hons) FRACP

Department of Paediatrics, Alice Springs Hospital, Alice Springs, Australia

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Sarath Ranganathan MB, ChB, MRCP, FRCPCH, FRACP, PhD

Sarath Ranganathan MB, ChB, MRCP, FRCPCH, FRACP, PhD

Department of Respiratory Medicine, Royal Children's Hospital, Parkville, Australia

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Hiran Selvadurai MBBS, PhD, FRACP

Hiran Selvadurai MBBS, PhD, FRACP

Department of Respiratory Medicine, Children's Hospital at Westmead, Australia

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Greg Smith MBBS, FRACP

Greg Smith MBBS, FRACP

Department of Pulmonary Medicine, Women's and Children's Hospital, North Adelaide, Australia

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Manuel Soto-Martinez MD

Manuel Soto-Martinez MD

Department of Respiratory Medicine, Royal Children's Hospital, Parkville, Australia

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Sadasivam Suresh MBBS, MRCPCH, FRACP

Sadasivam Suresh MBBS, MRCPCH, FRACP

Department of Respiratory/Sleep Medicine, Mater Children's Hospital, South Brisbane, Australia

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Laurel Teoh BSc (Med), MBBS (Hons), DCH, FRACP

Laurel Teoh BSc (Med), MBBS (Hons), DCH, FRACP

Department of Paediatrics and Child Health, The Canberra Hospital, Woden, Australia

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Kiran Thapa BSc

Kiran Thapa BSc

Centre for Infectious Diseases and Microbiology, Institute of Clinical Pathology and Medical Research, Westmead, Australia

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Claire E. Wainwright MBBS, MRCP, FRACP, MD

Claire E. Wainwright MBBS, MRCP, FRACP, MD

Department of Respiratory Medicine, Royal Children's Hospital, Herston, Australia

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Adam Jaffé BSc (Hons), MD, FRCP, FRCPCH, FRACP

Corresponding Author

Adam Jaffé BSc (Hons), MD, FRCP, FRCPCH, FRACP

Department of Respiratory Medicine, Sydney Children's Hospital, Randwick, Australia

School of Women's and Child Health, University of New South Wales, Sydney, Australia

Associate Professor, Department of Respiratory Medicine, Sydney Children's Hospital, High Street, Randwick, Sydney, NSW 2031, Australia.Search for more papers by this author
on behalf of the Australian Research Network in Empyema (ARNiE)

on behalf of the Australian Research Network in Empyema (ARNiE)

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First published: 20 October 2010
Citations: 16

Abstract

Background

Empyema is a complication of pneumonia, commonly caused by Streptococcus pneumoniae.

Aims

To validate the utility of an immunochromatographic test for the detection of S. pneumoniae antigen in the pleural fluid of children with empyema.

Methods

Empyema patients had blood and pleural fluid cultured, and polymerase chain reaction (PCR) to detect the S. pneumoniae autolysin gene, lytA, in pleural fluid. Pleural fluid was tested using the Binax NOW S. pneumoniae antigen detection assay and compared with lytA PCR results and/or culture in blood or pleural fluid.

Results

S. pneumoniae was detected by PCR in pleural fluid of 68 of 137 (49.6%) patients, by culture in 11 of 135 (8.1%) pleural specimens and 16 of 120 (13.3%) blood specimens. Pleural fluid Binax NOW testing from 130 patients demonstrated a sensitivity of 83.8% and specificity of 93.5% (positive predictive value of 93.4% and negative predictive value of 84.1%).

Conclusions

In pediatric empyema, high predictive values of pleural fluid Binax NOW S. pneumoniae antigen test suggest that this test may help rationalize antibiotic choice in these patients. Pediatr. Pulmonol. 2011; 46:179–183. © 2011 Wiley-Liss, Inc.

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