Lung function by impulse oscillometry at age 5-7 years after bronchiolitis at age 0-6 months.
Pediatr Pulmonol
; 50(4): 389-95, 2015 Apr.
Article
en En
| MEDLINE
| ID: mdl-24668616
ABSTRACT
BACKGROUND:
Viral bronchiolitis in infancy has been associated with increased bronchial reactivity and reduced lung function in later childhood and even in adulthood. However, lung function at preschool age is less studied, mainly due to technical difficulties. The purpose of the study was to evaluate lung function and bronchial reactivity at preschool age in children who were hospitalized for bronchiolitis in early infancy. SUBJECTS ANDMETHODS:
Airway resistance and reactance, and bronchial reactivity to exercise were studied with impulse oscillometry (IOS) at the mean age of 6.3 years in 103 children hospitalized for bronchiolitis at less than 6 months of age.RESULTS:
In baseline lung-function measurement, resistance (n = 8; 7.8%) or reactance (19; 18.4%) at 5 Hz were pathological in 20% of children compared to Finnish population-based height-adjusted reference values. Increased bronchial reactivity by exercise challenge (5; 4.9%) or bronchodilatation (11; 10.7%) tests was present in 16%. Irreversible changes were revealed in only one case.CONCLUSIONS:
Though reduced lung function and increased airway reactivity were rather common, evidence for persistent lung function reduction was rare, less than 1%, at preschool age in children hospitalized for bronchiolitis caused mainly by respiratory syncytial virus at age less than 6 months.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Oscilometría
/
Bronquiolitis Viral
Tipo de estudio:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Child
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Child, preschool
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Female
/
Humans
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Infant
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Male
/
Newborn
Idioma:
En
Revista:
Pediatr Pulmonol
Asunto de la revista:
PEDIATRIA
Año:
2015
Tipo del documento:
Article
País de afiliación:
Finlandia