PMID: 8959119Nov 1, 1996Paper

Assessment of accuracy and applicability of a portable electronic diary card spirometer for asthma treatment

Respiratory Medicine
I GodschalkJ M Bogaard

Abstract

A pocked-sized turbine flowmeter and spirometer device, integrated with an electronic diary card (EDC-spirometer, Micro Medical, U.K.), was tested with a mechanical calibrator, in an outpatient clinic and in the home situation. A screen pneumotachometer was used as flow and volume reference. Ten devices were tested; interdevice variability was small with a mean variation coefficient of 1.1% for both forced expiratory volume in 1 s (FEV1) and peak expiratory flow (PEF) (SD 0.5 and 0.4, respectively) for eight settings of the calibrator. Mean difference from reference was -0.13 l (SD 0.04) for FEV1 (range 0.38-3.16) and 0.09 l s-1 (SD 0.09) for PEF (range 4.2-11.7). No significant deviation from linearity was present. Results obtained in the outpatient clinic confirmed the accuracy of FEV1 and PEF data obtained with the calibrator. However, linear regression analysis showed a mean underestimation of 0.45 l (SD of estimate 0.29) for forced vital capacity over the whole measurement range, probably due to a restricted integration time. In 10 optimally-treated chronic obstructive pulmonary disease patients in a family practice, PEF measurements were done in the home situation, both with the EDC spirometer and a mini-Wright peak flow ...Continue Reading

References

Nov 1, 1992·Thorax·M R MillerD J Hitchings
Jun 1, 1990·The Journal of Allergy and Clinical Immunology·F E HargreaveM T Newhouse
Nov 1, 1987·The American Review of Respiratory Disease·A S Buist
Sep 1, 1987·Thorax·K A GunawardenaA P Smith
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Jun 1, 1982·The Journal of Allergy and Clinical Immunology·L T Chiaramonte, S L Prabhu

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Citations

Aug 3, 1999·IEEE Engineering in Medicine and Biology Magazine : the Quarterly Magazine of the Engineering in Medicine & Biology Society·B MorlionP Assis-Arantes
Jan 27, 2004·The Annals of Pharmacotherapy·John M Tovar, John G Gums
Aug 27, 2018·Current Allergy and Asthma Reports·Delesha M CarpenterAmy Chan
Feb 10, 2020·The Journal of Allergy and Clinical Immunology·Jay M PortnoyTania Elliott

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