Concordance between the Piko 鈥?1^庐 portable device and pneumotachography in measuring PEF and FEVb>1b> in asthmatic children

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• 作者：A.J. Aguilar-Ferná ; ndez^a ; ^{ajaf10@yahoo.es} ; J.R. Villa-Asensi^b ; M. Castro-Codesal^b ; E. Almerí ; a-Gil^b ; M.I. Gonzá ; lez-Alvarez^b ; F. Romero-Andú ; jar^b
• 关键词：Piko-1. Peak expiratory flow ; Forced expiratory volume in one second ; Children
• 刊名：Allergologia et Immunopathologia
• 出版年：2009
• 期刊代码：pca44_03010546
• 类别：med
• 出版时间：September-October 2009
• 卷：37
• 期：5
• 页码：244-248
• 文件大小：207 K

摘要

Objective

To assess concordance in the measurement of peak expiratory flow (PEF) and forced expiratory volume in one second (FEVb>1b>) between the portable device Piko-1 (Ferraris) and a pneumotachograph.

Patients and methods

Forced spirometry (Master Screen Jaeger) was performed according to ATS/ERS norms, selecting the best value of three curves, and three measurements with the Piko-1 were recorded, following the recommendations of the manufacturer.

Results

Eighty patients between 5鈥?8 years of age were studied. Based on the Bland-Altman method, the mean differences obtained were 9.82 (95%CI: 2.43鈥?7.21) for PEF and 0.17 (95%CI: 0.12鈥?.21) for FEVb>1b>. The intraclass correlation coefficient was 0.96 (p<0,001; 95%CI: 0.93鈥?.97) for FEVb>1b> and 0.93 (p<0,001; 95%CI: 0.89鈥?.95) for PEF.

Conclusions

Piko-1 offers FEVb>1b> measurements close to those obtained with forced spirometry, thus allowing more exact patient assessment in home-based follow-up, emergency services, or hospital wards.