Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China

BackgroundInfants with bronchiolitis have an increased risk of developing recurrent wheezing and asthma. However, the risk factors for recurrent wheezing or asthma after infant bronchiolitis remain controversial. The aim of our prospective observational study was to seek the risk factors for recurre...

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Main Authors: Sainan Chen, Xueyun Xu, Min Wu, Luting Zhou, Yuqing Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Pediatrics
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Online Access:https://www.frontiersin.org/articles/10.3389/fped.2025.1549475/full
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author Sainan Chen
Xueyun Xu
Min Wu
Luting Zhou
Yuqing Wang
author_facet Sainan Chen
Xueyun Xu
Min Wu
Luting Zhou
Yuqing Wang
author_sort Sainan Chen
collection DOAJ
description BackgroundInfants with bronchiolitis have an increased risk of developing recurrent wheezing and asthma. However, the risk factors for recurrent wheezing or asthma after infant bronchiolitis remain controversial. The aim of our prospective observational study was to seek the risk factors for recurrent wheezing or asthma.MethodsInfants with first bronchiolitis attack at the respiratory department, Children's Hospital of Soochow University were enrolled from November 2016 through March 2017. Serum cytokines, TSLP, IL2, IL13, TIMP-1, MMP-9, IL33, IL5, IL4, IL25, TNF-α and MIP-1α were measured via flow cytometry at enrolment. Patients were followed up with every 3 months for a duration of 6 years by telephone or as outpatients for the number of wheezing episodes. In the sixth year of follow-up, lung function tests, total IgE and allergen specific IgE test were performed in those children at 6–7 years of age.ResultsWe enrolled 89 infants, 72 of whom were successfully followed up for 6 years. In total, 31.9% of the patients developed recurrent wheezing and 12.5% of patients developed asthma after 6 years of follow-up. The Kaplan–Meier curves of the overall analytic cohort (n = 72) revealed that compared with those in the non-eczema group and non-RSV group, the rate of recurrent wheezing preschool was significantly higher in patients with bronchiolitis with eczema and RSV (P < 0.05). There were no significant differences in cytokine levels between patients with and without current asthma (P > 0.05).ConclusionsA total of 31.9% of the children with hospitalization for bronchiolitis at an early age developed recurrent wheezing and 12.5% developed asthma at 6-years old. Infants hospitalised with RSV bronchiolitis and/ or with a history of eczema were at increased risk for developing recurrent wheezing.
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spelling doaj-art-0d4d7cd226994627a8219381af0ffa3a2025-08-20T03:40:46ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602025-08-011310.3389/fped.2025.15494751549475Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in ChinaSainan ChenXueyun XuMin WuLuting ZhouYuqing WangBackgroundInfants with bronchiolitis have an increased risk of developing recurrent wheezing and asthma. However, the risk factors for recurrent wheezing or asthma after infant bronchiolitis remain controversial. The aim of our prospective observational study was to seek the risk factors for recurrent wheezing or asthma.MethodsInfants with first bronchiolitis attack at the respiratory department, Children's Hospital of Soochow University were enrolled from November 2016 through March 2017. Serum cytokines, TSLP, IL2, IL13, TIMP-1, MMP-9, IL33, IL5, IL4, IL25, TNF-α and MIP-1α were measured via flow cytometry at enrolment. Patients were followed up with every 3 months for a duration of 6 years by telephone or as outpatients for the number of wheezing episodes. In the sixth year of follow-up, lung function tests, total IgE and allergen specific IgE test were performed in those children at 6–7 years of age.ResultsWe enrolled 89 infants, 72 of whom were successfully followed up for 6 years. In total, 31.9% of the patients developed recurrent wheezing and 12.5% of patients developed asthma after 6 years of follow-up. The Kaplan–Meier curves of the overall analytic cohort (n = 72) revealed that compared with those in the non-eczema group and non-RSV group, the rate of recurrent wheezing preschool was significantly higher in patients with bronchiolitis with eczema and RSV (P < 0.05). There were no significant differences in cytokine levels between patients with and without current asthma (P > 0.05).ConclusionsA total of 31.9% of the children with hospitalization for bronchiolitis at an early age developed recurrent wheezing and 12.5% developed asthma at 6-years old. Infants hospitalised with RSV bronchiolitis and/ or with a history of eczema were at increased risk for developing recurrent wheezing.https://www.frontiersin.org/articles/10.3389/fped.2025.1549475/fullbronchiolitisrecurrent wheezingrisk factorseczemaRSV
spellingShingle Sainan Chen
Xueyun Xu
Min Wu
Luting Zhou
Yuqing Wang
Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China
Frontiers in Pediatrics
bronchiolitis
recurrent wheezing
risk factors
eczema
RSV
title Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China
title_full Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China
title_fullStr Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China
title_full_unstemmed Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China
title_short Risk factors for recurrent wheezing after infant bronchiolitis: a 6-year single-centre follow up study in China
title_sort risk factors for recurrent wheezing after infant bronchiolitis a 6 year single centre follow up study in china
topic bronchiolitis
recurrent wheezing
risk factors
eczema
RSV
url https://www.frontiersin.org/articles/10.3389/fped.2025.1549475/full
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