BACKGROUND Handheld spirometers have several advantages over desktop spirometers, but worries persist regarding reproducibility and validity of data from handheld spirometers. We undertook an independent examination of the EasyOne handheld spirometer. METHODS The laboratory testing included reproducibility and validity testing with a waveform generator. We used standard American Thoracic Soci...

BACKGROUND Forced expiration may assist secretion movement by manipulating airway dynamics in patients with cystic fibrosis (CF). Expiratory resistive breathing via a handheld incentive spirometer has the potential to control the expiratory flow via chosen resistances (1-8 mm) and thereby mobilize secretions and improve lung function. Our objective was to explore the short-term effect of using ...

An electronic spirometer which utllizee a thermistor end an linearizing circuit, was evaluated. When compared to a Collins 13.5 liter water seal spirometer, 60 test results from 30 patienls revealed no clinically significant difference in forced vital capacity (FVC), forced expiratory volume in one second (FEVih or maximum voluntary ventilation (MVV). The device was found durable Pnd highly use...

Abstract Tiffeneau manoeuvres are an important method in pulmonary function testing of the human lungs and can help to diagnose respiratory obstructions. Data from a motion capture system spirometer was used evaluate indexes which theoretically be derived via Smart-Shirt that incorporates three circumference measurements upper body. The mean error 4.5% regarding gained by spirometer, indicating...

drastically displaced. From our side, this has lead to an intelligent analytical procedure that we call “InCAP,” which groups waveforms into clusters.3 The cluster that most closely agrees with the normal capnogram is used for calculating PETCO2. This analysis system provides considerably better agreement between the data from cluster 1 and the PaCO2 value. The problematic nature of the convent...