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<meta content="Walters, J.A.E." name="eprints.creators_name" />
<meta content="Wood-Baker, R." name="eprints.creators_name" />
<meta content="Walls, J." name="eprints.creators_name" />
<meta content="Johns, D.P." name="eprints.creators_name" />
<meta content="Julia.Walters@utas.edu.au" name="eprints.creators_id" />
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<meta content="Objective and background: Spirometry is recommended for the diagnosis and management of chronic respiratory diseases in the community. Spirometer accuracy is critical, but few general practitioners meet the American Thoracic Society and European Respiratory Society (ATS/ERS) recommendation for daily calibration. The aim of this study was to assess the accuracy and stability of a portable ultrasonic spirometer (EasyOne) that the manufacturer claims does not require regular calibration.
Methods: Six EasyOne spirometers were used in a practice-based spirometry study. Inspiratory and expiratory accuracy was checked periodically using a certified 3-L syringe. Paired calibration checks were performed using a dedicated mouthpiece assembly (spirette) and randomly selected spirettes.
Results: The six spirometers were used for up to 26 weeks (mean 23.9 weeks) and a total of 1041 spirometry tests and 75 syringe calibrations were performed. All inspiratory and expiratory calibration checks using a dedicated or randomly selected spirette met the ATS/ERS accuracy criterion (3.00 +/- 0.105 L). The mean (range) expiratory volume deviation from target volume (3.00 L) was 0.011 L (-0.06-0.09 L) using a dedicated spirette and 0.046 L (-0.09-0.10 L) using randomly selected spirettes. The deviation from target was not affected by the mean flow generated during the calibration procedure. There was no change in calibration during the study.
Conclusions: This study supports the manufacturer's claim that the EasyOne spirometer maintains its calibration during routine clinical use in general practice and does not require daily calibration as specified in international spirometry guidelines." name="eprints.abstract" />
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<meta content="1 Petty TL, Weinmann GG. Building a national strategy for the prevention and managment of and research in chronic obstructive pulmonary disease. National Heart, Lung and Blood Institute Workshop Summary. Bethesda. JAMA 1995; 277: 246-53.
2 Ferguson GT, Enright PL, Buist S, Higgins MW. Office spirometry for lung health assessment in adults: a consensus statement from the National Lung Health Education Program. Chest 2000; 117: 1146-61.
3 Pauwels RA, Buist AS, Calverley PM, Jenkins CR, Hurd SS. GOLD Scientific Committee. Global strategy for the diagnosis, management, and prevention of chronic. obstructive pulmonary disease. NHLBI/WHO Global Initiative for Chronic Obstructive Lung Disease (GOLD) Workshop summary. Am. J. Respir. Crit. Care Med. 2001; 163: 1256-76.
4 McKenzie DK, Frith PA, Burdon JG, Town GI, Australian Lung Foundation, Thoracic Society of Australia and New Zealand. The COPDX Plan: Australian and New Zealand guidelines for the management of chronic obstructive pulmonary disease. Med. J. Aust. 2003; 178: S7-39.
5 Buist AS, Vollmer WM, Sullivan F et al. The burden of obstructive lung disease initiative (BOLD): rationale and design. COPD: J. Chron. Obstruct. Pulm. Dis. 2005; 2: 277-83.
6 Miller MR, Hankinson J, Brusasco F et al. ATS/ERS Task Force. Standardisation of spirometry. Eur. Respir. J. 2005; 26: 319-38.
7 Johns DP, Burton D, Walters JAE, Wood-Baker R. National survey of spirometer ownership and usage in general practice in Australia. Respirology 2006; 3: 292-298.
8 Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986; 1: 307-10.
9 Mortimer KM, Fallot A, Balmes JR, Tager IB. Evaluating the use of a portable spirometer in a study of pediatric asthma. Chest 2003; 123: 1899-907.
10 Schoh RJ, Fero LJ, Shapiro H et al. Performance of a new screening spirometer at a community health fair. Respir. Care 2002; 47: 1150-7.
11 Burton D, Johns DP, Swanney M. Spirometer Buyers' Guide. 2005. ISBN 0642827850. [Cited 3 October 2006.] Available from URL:http://www.nationalasthma.org.au/" name="eprints.referencetext" />
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<meta content="Walters, J.A.E." name="DC.creator" />
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<meta content="Walls, J." name="DC.creator" />
<meta content="Johns, D.P." name="DC.creator" />
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<meta content="Objective and background: Spirometry is recommended for the diagnosis and management of chronic respiratory diseases in the community. Spirometer accuracy is critical, but few general practitioners meet the American Thoracic Society and European Respiratory Society (ATS/ERS) recommendation for daily calibration. The aim of this study was to assess the accuracy and stability of a portable ultrasonic spirometer (EasyOne) that the manufacturer claims does not require regular calibration.
Methods: Six EasyOne spirometers were used in a practice-based spirometry study. Inspiratory and expiratory accuracy was checked periodically using a certified 3-L syringe. Paired calibration checks were performed using a dedicated mouthpiece assembly (spirette) and randomly selected spirettes.
Results: The six spirometers were used for up to 26 weeks (mean 23.9 weeks) and a total of 1041 spirometry tests and 75 syringe calibrations were performed. All inspiratory and expiratory calibration checks using a dedicated or randomly selected spirette met the ATS/ERS accuracy criterion (3.00 +/- 0.105 L). The mean (range) expiratory volume deviation from target volume (3.00 L) was 0.011 L (-0.06-0.09 L) using a dedicated spirette and 0.046 L (-0.09-0.10 L) using randomly selected spirettes. The deviation from target was not affected by the mean flow generated during the calibration procedure. There was no change in calibration during the study.
Conclusions: This study supports the manufacturer's claim that the EasyOne spirometer maintains its calibration during routine clinical use in general practice and does not require daily calibration as specified in international spirometry guidelines." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Stability of the EasyOne ultrasonic spirometer for use in general practice</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Walters, J.A.E.</span> and <span class="person_name">Wood-Baker, R.</span> and <span class="person_name">Walls, J.</span> and <span class="person_name">Johns, D.P.</span> (2006) <xhtml:em>Stability of the EasyOne ultrasonic spirometer for use in general practice.</xhtml:em> Respirology, 11 (3). pp. 306-310.</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/1281/1/Easyone_respirology_2006.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/1281/1/Easyone_respirology_2006.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />129Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1111/j.1440-1843.2006.00842.x">http://dx.doi.org/10.1111/j.1440-1843.2006.00842.x</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Objective and background: Spirometry is recommended for the diagnosis and management of chronic respiratory diseases in the community. Spirometer accuracy is critical, but few general practitioners meet the American Thoracic Society and European Respiratory Society (ATS/ERS) recommendation for daily calibration. The aim of this study was to assess the accuracy and stability of a portable ultrasonic spirometer (EasyOne) that the manufacturer claims does not require regular calibration.
Methods: Six EasyOne spirometers were used in a practice-based spirometry study. Inspiratory and expiratory accuracy was checked periodically using a certified 3-L syringe. Paired calibration checks were performed using a dedicated mouthpiece assembly (spirette) and randomly selected spirettes.
Results: The six spirometers were used for up to 26 weeks (mean 23.9 weeks) and a total of 1041 spirometry tests and 75 syringe calibrations were performed. All inspiratory and expiratory calibration checks using a dedicated or randomly selected spirette met the ATS/ERS accuracy criterion (3.00 +/- 0.105 L). The mean (range) expiratory volume deviation from target volume (3.00 L) was 0.011 L (-0.06-0.09 L) using a dedicated spirette and 0.046 L (-0.09-0.10 L) using randomly selected spirettes. The deviation from target was not affected by the mean flow generated during the calibration procedure. There was no change in calibration during the study.
Conclusions: This study supports the manufacturer's claim that the EasyOne spirometer maintains its calibration during routine clinical use in general practice and does not require daily calibration as specified in international spirometry guidelines.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">The definitive version is available at www.blackwell-synergy.com</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Accuracy, priamary care, spirometry</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/321027.html">320000 Medical and Health Sciences > 321000 Clinical Sciences > 321027 Respiratory Diseases</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">1281</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Julia AE Walters</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">05 Jul 2007</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=1281;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=1281">item control page</a></p>
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