Gruber W, Novotny A, Steinbrugger B, Zach M
Univesitäts Kinderklinik Graz.
Kinderarztl Prax. 1993 Feb;61(1):8-11.
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.
使用抗菌过滤器可降低肺功能设备受污染导致交叉感染的风险。然而，这些过滤器不应对流量测量产生显著影响。我们研究了一种新型过滤器（颇尔PF 30）对92名患有支气管哮喘和囊性纤维化的儿童及青少年肺功能测量的影响。以随机顺序，在全身体积描记器中记录流量-容积曲线和肺量计。使用过滤器测得的值与未使用过滤器时记录的值密切相关；个体值仍接近恒等线。然而，在高流速时，使用过滤器测量值有轻微降低的趋势；这种阻尼效应与流量有关，且在临床上仍无显著意义。
