Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing

Abstract Background Human metapneumovirus (HMPV) has been increasingly appreciated as a cause of lower respiratory tract infection among children. The purpose of this paper is to determine the radiographic and clinical features of children with HMPV lower respiratory disease. Case Presentation We re...

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Main Authors: Weihan Xu, Xiaoyan Zhang, Yuhong Guan, Ruxuan He, Xiang Zhang, Jinrong Liu
Format: Article
Language:English
Published: BMC 2025-05-01
Series:Italian Journal of Pediatrics
Subjects:
Online Access:https://doi.org/10.1186/s13052-025-01973-1
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author Weihan Xu
Xiaoyan Zhang
Yuhong Guan
Ruxuan He
Xiang Zhang
Jinrong Liu
author_facet Weihan Xu
Xiaoyan Zhang
Yuhong Guan
Ruxuan He
Xiang Zhang
Jinrong Liu
author_sort Weihan Xu
collection DOAJ
description Abstract Background Human metapneumovirus (HMPV) has been increasingly appreciated as a cause of lower respiratory tract infection among children. The purpose of this paper is to determine the radiographic and clinical features of children with HMPV lower respiratory disease. Case Presentation We reviewed seven pediatric patients with severe pneumonia due to HMPV admitted to the Department of Respiratory Medicine, Beijing Children’s Hospital were assessed in our study from January to July 2023. Unlike other common viral, lobar or segmental consolidation, air bronchograms, and bronchial wall thickening were the most commonly observed HRCT findings in HMPV-associated pneumonia. C-reactive protein (CRP) levels, ranged 35 mg/L to 146 mg/L, and the median WBC count were significantly increased in children with HMPV-associated pneumonia than the normal level. Two patients were co-detected with Haemophilus influenzae and streptococcus pneumoniae, respectively. Five patients were treated with empirical antibiotics prior to the bacterial test results. Conclusions Some pediatric HMPV-associated pneumonias were characterized by lobar or segmental consolidation in CT and the significantly elevated CRP levels, which may mimic Mycoplasma Pneumoniae or bacterial infection. Healthcare providers should consider HMPV as a possible causative pathogen, perform laboratory tests for prompt diagnosis, and limit unnecessary antibiotic treatment.
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spelling doaj-art-a0b79114b6c54826afae5f6cf43327ed2025-08-20T02:15:16ZengBMCItalian Journal of Pediatrics1824-72882025-05-015111610.1186/s13052-025-01973-1Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in BeijingWeihan Xu0Xiaoyan Zhang1Yuhong Guan2Ruxuan He3Xiang Zhang4Jinrong Liu5Department of Respiratory Medicine, Beijing Children’s Hospital, National Center for Children’s Health, China National Clinical Research Center of Respiratory Disease, Capital Medical UniversityDepartment of Respiratory Medicine, Beijing Children’s Hospital, National Center for Children’s Health, China National Clinical Research Center of Respiratory Disease, Capital Medical UniversityDepartment of Respiratory Medicine, Beijing Children’s Hospital, National Center for Children’s Health, China National Clinical Research Center of Respiratory Disease, Capital Medical UniversityDepartment of Respiratory Medicine, Beijing Children’s Hospital, National Center for Children’s Health, China National Clinical Research Center of Respiratory Disease, Capital Medical UniversityDepartment of Respiratory Medicine, Beijing Children’s Hospital, National Center for Children’s Health, China National Clinical Research Center of Respiratory Disease, Capital Medical UniversityDepartment of Respiratory Medicine, Beijing Children’s Hospital, National Center for Children’s Health, China National Clinical Research Center of Respiratory Disease, Capital Medical UniversityAbstract Background Human metapneumovirus (HMPV) has been increasingly appreciated as a cause of lower respiratory tract infection among children. The purpose of this paper is to determine the radiographic and clinical features of children with HMPV lower respiratory disease. Case Presentation We reviewed seven pediatric patients with severe pneumonia due to HMPV admitted to the Department of Respiratory Medicine, Beijing Children’s Hospital were assessed in our study from January to July 2023. Unlike other common viral, lobar or segmental consolidation, air bronchograms, and bronchial wall thickening were the most commonly observed HRCT findings in HMPV-associated pneumonia. C-reactive protein (CRP) levels, ranged 35 mg/L to 146 mg/L, and the median WBC count were significantly increased in children with HMPV-associated pneumonia than the normal level. Two patients were co-detected with Haemophilus influenzae and streptococcus pneumoniae, respectively. Five patients were treated with empirical antibiotics prior to the bacterial test results. Conclusions Some pediatric HMPV-associated pneumonias were characterized by lobar or segmental consolidation in CT and the significantly elevated CRP levels, which may mimic Mycoplasma Pneumoniae or bacterial infection. Healthcare providers should consider HMPV as a possible causative pathogen, perform laboratory tests for prompt diagnosis, and limit unnecessary antibiotic treatment.https://doi.org/10.1186/s13052-025-01973-1Human metapneumovirusPneumoniaChildrenComputed tomography
spellingShingle Weihan Xu
Xiaoyan Zhang
Yuhong Guan
Ruxuan He
Xiang Zhang
Jinrong Liu
Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing
Italian Journal of Pediatrics
Human metapneumovirus
Pneumonia
Children
Computed tomography
title Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing
title_full Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing
title_fullStr Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing
title_full_unstemmed Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing
title_short Clinical and CT characteristics of human metapneumovirus-associated severe pneumonia in children in Beijing
title_sort clinical and ct characteristics of human metapneumovirus associated severe pneumonia in children in beijing
topic Human metapneumovirus
Pneumonia
Children
Computed tomography
url https://doi.org/10.1186/s13052-025-01973-1
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