Reference values for respiratory system impedance by using impulse oscillometry in children aged 2-11 years.
Clin Physiol Funct Imaging
; 26(4): 247-50, 2006 Jul.
Article
en En
| MEDLINE
| ID: mdl-16836699
ABSTRACT
The forced oscillation technique makes it possible to evaluate the mechanical properties of the respiratory system with a minimum of cooperation. The method is therefore especially useful in children. Impulse oscillometry (IOS) is a commercially available version of this technique. There is, as yet, limited information on reference values for IOS in children. The aim of this study was to extend the reference values for IOS variables and to study their correlation with height, weight and age in healthy children. A sample (n = 360) of children (age 2.1-11.1 years) was measured by using impulse oscillometry (IOS; Jaeger, Würzburg, Germany). The sample was based on children attending kindergarten in Finland and children attending primary school in Sweden. Measurements of respiratory resistance (Rrs) and reactance (Xrs) at 5, 10, 15 and 20 Hz, total respiratory impedance (Zrs) and the resonance frequency (Fr) were made. All variables were related to body height. Most of them were also weakly related to weight. Reference equations for children (height 90-160 cm) are presented.
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Bases de datos:
MEDLINE
Asunto principal:
Oscilometría
/
Pruebas de Función Respiratoria
Tipo de estudio:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Límite:
Child
/
Child, preschool
/
Humans
País/Región como asunto:
Europa
Idioma:
En
Revista:
Clin Physiol Funct Imaging
Asunto de la revista:
FISIOLOGIA
/
PATOLOGIA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Suecia