[Modification of pediatric lung function measurement by antibacterial filters]
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W Gruper1, A Novotny, B Steinbrugger
1Universitäts-Kinderklinik Graz.
Insights
Antibacterial filters reduce cross-infection risk from lung function equipment. A new filter (Pall PF 30) showed minimal, clinically insignificant effects on spirometry and flow-volume curves in pediatric patients.
Area of Science:
- Respiratory Medicine
- Medical Device Technology
Context:
- Contaminated lung function equipment poses a cross-infection risk.
- Antibacterial filters are a potential solution to mitigate this risk.
- Ensuring filter use does not compromise accurate lung function measurements is crucial.
Purpose:
- To evaluate the impact of a novel antibacterial filter (Pall PF 30) on lung function measurements.
- To assess the filter's influence on spirometry and flow-volume curves in pediatric patients with respiratory conditions.
Summary:
- Ninety-two children and adolescents with bronchial asthma and cystic fibrosis underwent lung function testing with and without the Pall PF 30 filter.
- Measurements, including flow-volume curves and spirometry, were recorded in a randomized sequence using whole-body plethysmography.
- Results demonstrated a close correlation between filtered and unfiltered measurements, with individual values closely adhering to the line of identity.
Impact:
- The Pall PF 30 filter demonstrated a minimal, flow-dependent damping effect at high flow rates.
- This effect was found to be of clinically insignificant dimension, suggesting the filter does not substantially alter lung function readings.
- The findings support the use of the Pall PF 30 filter to enhance patient safety without compromising diagnostic accuracy in pediatric respiratory assessments.
Abstract:
The risk of cross-infection by contaminated lung function equipment can be reduced by the use of antibacterial filters. These filters, however, should have no significant influence on flow measurements. We investigated the effect of a new filter (Pall PF 30) on lung function measurements in 92 children and adolescents with bronchial asthma and cystic fibrosis. In randomized sequence, flow-volume curves and spirometry were registered in the whole body plethysmograph. Values measured with filter correlated closely to those registered without; individual values remained close to the line of identity. With high flow rates, however, there was a minimal tendency towards lower measurements with filter; this damping effect was flow-dependent and remained of a clinically insignificant dimension.