Validation of the portable Air-Smart Spirometer

PloS One
Cristina Ramos HernándezAlberto Fernández Villar

Abstract

The Air-Smart Spirometer is the first portable device accepted by the European Community (EC) that performs spirometric measurements by a turbine mechanism and displays the results on a smartphone or a tablet. In this multicenter, descriptive and cross-sectional prospective study carried out in 2 hospital centers, we compare FEV1, FVC, FEV1/FVC ratio measured with the Air Smart-Spirometer device and a conventional spirometer, and analyze the ability of this new portable device to detect obstructions. Patients were included for 2 consecutive months. We calculate sensitivity, specificity, positive and negative predictive value (PPV and NPV) and likelihood ratio (LR +, LR-) as well as the Kappa Index to evaluate the concordance between the two devices for the detection of obstruction. The agreement and relation between the values of FEV1 and FVC in absolute value and the FEV1/FVC ratio measured by both devices were analyzed by calculating the intraclass correlation coefficient (ICC) and the Pearson correlation coefficient (r) respectively. 200 patients (100 from each center) were included with a mean age of 57 (± 14) years, 110 were men (55%). Obstruction was detected by conventional spirometry in 73 patients (40.1%). Using a FEV1...Continue Reading

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Citations

Jan 31, 2019·Physiological Measurement·Chenshuo WangZhen Fang
Apr 9, 2019·Amyotrophic Lateral Sclerosis & Frontotemporal Degeneration·Andrew Geronimo, Zachary Simmons
Mar 24, 2020·Pediatric Pulmonology·Nicholas AvdimiretzHartmut Grasemann
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