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Accuracy of the piko-1 pocket spirometer
Thomas Rothe1, Werner Karrer, Christian Schindler
1Department of Internal Medicine and Pneumology, Zürcher Höhenklinik Davos , Davos Clavadel, Switzerland. thomas.rothe@zhd.ch
Summary
The Piko-1 spirometer provides acceptable accuracy for home monitoring of lung function in asthma patients. This device may help in detecting asthma exacerbations, offering an alternative to symptom-based assessments.
Area of Science:
- Pulmonary Medicine
- Medical Device Technology
- Asthma Management
Background:
- Asthma control is crucial for long-term treatment, guided by Global Initiative for Asthma (GINA) recommendations.
- Current asthma control assessment involves symptom questionnaires and spirometry (FEV(1)).
- Some patients prefer objective measures like peak flow for self-management.
Purpose of the Study:
- To evaluate the accuracy of the Piko-1 handheld spirometer for home monitoring of FEV(1).
- To assess the Piko-1 device as a potential tool for asthma self-management and exacerbation detection.
Main Methods:
- Twenty volunteers tested 20 Piko-1 devices over five days.
- Daily FEV(1) measurements from Piko-1 devices were compared against a calibrated reference spirometer.
Main Results:
- The Piko-1 spirometer demonstrated acceptable accuracy for FEV(1) measurements.
- A tendency for underestimation of lower range FEV(1) values was observed.
- No significant heterogeneity was found between different Piko-1 devices.
Conclusions:
- Piko-1 FEV(1) measurements are accurate enough for clinical trials comparing device-based and symptom-based asthma exacerbation detection.
- The Piko-1 device shows potential as a valuable tool for asthma self-management.
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