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22.08.2017 | Original Article

Chest radiographic features of human metapneumovirus infection in pediatric patients

verfasst von: Melissa A. Hilmes, F. Daniel Dunnavant, Sudha P. Singh, Wendy D. Ellis, Daniel C. Payne, Yuwei Zhu, Marie R. Griffin, Kathryn M. Edwards, John V. Williams

Erschienen in: Pediatric Radiology | Ausgabe 13/2017

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Abstract

Background

Human metapneumovirus (HMPV) was identified in 2001 and is a common cause of acute respiratory illness in young children. The radiologic characteristics of laboratory-confirmed HMPV acute respiratory illness in young children have not been systematically assessed.

Objective

We systematically evaluated the radiographic characteristics of acute respiratory illness associated with HMPV in a prospective cohort of pediatric patients.

Materials and methods

We included chest radiographs from children <5 years old with acute respiratory illness who were enrolled in the prospective New Vaccine Surveillance Network (NVSN) study from 2003 to 2009 and were diagnosed with HMPV by reverse transcription-polymerase chain reaction (RT-PCR). Of 215 HMPV-positive subjects enrolled at our tertiary care children’s hospital, 68 had chest radiographs obtained by the treating clinician that were available for review. Two fellowship-trained pediatric radiologists, independently and then in consensus, retrospectively evaluated these chest radiographs for their radiographic features.

Results

Parahilar opacities were the most commonly observed abnormality, occurring in 87% of children with HMPV. Hyperinflation also occurred frequently (69%). Atelectasis (40%) and consolidation (18%) appeared less frequently. Pleural effusion and pneumothorax were not seen on any radiographs.

Conclusion

The clinical presentations of HMPV include bronchiolitis, croup and pneumonia. Dominant chest radiographic abnormalities include parahilar opacities and hyperinflation, with occasional consolidation. Recognition of the imaging patterns seen with common viral illnesses like respiratory syncytial virus (RSV) and HMPV might facilitate diagnosis and limit unnecessary antibiotic treatment.

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Titel: Chest radiographic features of human metapneumovirus infection in pediatric patients
verfasst von: Melissa A. Hilmes
F. Daniel Dunnavant
Sudha P. Singh
Wendy D. Ellis
Daniel C. Payne
Yuwei Zhu
Marie R. Griffin
Kathryn M. Edwards
John V. Williams
Publikationsdatum: 22.08.2017
Verlag: Springer Berlin Heidelberg
Erschienen in: Pediatric Radiology / Ausgabe 13/2017
Print ISSN: 0301-0449
Elektronische ISSN: 1432-1998
DOI: https://doi.org/10.1007/s00247-017-3943-5

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Chest radiographic features of human metapneumovirus infection in pediatric patients