Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children
Background With several commercially available devices measuring respiratory impedance by oscillometry, the agreement between values obtained on different instruments or frequencies remains unclear. Our aim was to examine the agreement between resistance and reactance parameters on two oscillometry...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
European Respiratory Society
2019-03-01
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| Series: | ERJ Open Research |
| Online Access: | http://openres.ersjournals.com/content/5/1/00138-2018.full |
| _version_ | 1818207850085744640 |
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| author | Francine M. Ducharme Imane Jroundi Guillaume Jean Guillaume Lavoie Boutin Christiane Lawson Benjamin Vinet |
| author_facet | Francine M. Ducharme Imane Jroundi Guillaume Jean Guillaume Lavoie Boutin Christiane Lawson Benjamin Vinet |
| author_sort | Francine M. Ducharme |
| collection | DOAJ |
| description | Background
With several commercially available devices measuring respiratory impedance by oscillometry, the agreement between values obtained on different instruments or frequencies remains unclear. Our aim was to examine the agreement between resistance and reactance parameters on two oscillometry instruments using different waveforms.
Methods
We conducted a prospective cross-sectional study in asthmatic children aged 3–17 years. Reproducible oscillometry measurements were obtained in random order, by blinded operators, at three modes: 5–10–15–20–25 Hz (5–25 Hz) multifrequency mode on the MasterScreen impulse oscillometry system, and both 5–25 Hz multifrequency mode and 7 Hz monofrequency on the tremoFlo C-100 airwave sinusoidal system. Resistance, reactance and within-breath parameters were examined using the intraclass correlation coefficient (ICC), paired t-test, linear regression and Bland–Altman method.
Results
Of 50 participants, 44 and 38 completed between-device and within-frequency measurements, respectively. Between-device measurements at 5–25 Hz showed high (ICC 0.88–0.91) and good (ICC 0.69–0.87) agreement in resistance and reactance, respectively, but with an absolute within-patient difference (≥0.05 kPa·L−1·s−1) and proportional bias (≥30% per kPa·L−1·s−1) in all parameters and oscillatory frequencies, apart from resistance at 5 Hz. A significant proportional bias was documented in most within-breath parameters at 5 versus 7 Hz on tremoFlo.
Conclusion
Observed differences in resistance and reactance suggest the need for instrument- and frequency-specific paediatric normative values. |
| first_indexed | 2024-12-12T04:35:28Z |
| format | Article |
| id | doaj.art-e60a8e8d64804d549504635d41f56afe |
| institution | Directory Open Access Journal |
| issn | 2312-0541 |
| language | English |
| last_indexed | 2024-12-12T04:35:28Z |
| publishDate | 2019-03-01 |
| publisher | European Respiratory Society |
| record_format | Article |
| series | ERJ Open Research |
| spelling | doaj.art-e60a8e8d64804d549504635d41f56afe2022-12-22T00:37:59ZengEuropean Respiratory SocietyERJ Open Research2312-05412019-03-015110.1183/23120541.00138-201800138-2018Interdevice agreement in respiratory resistance values by oscillometry in asthmatic childrenFrancine M. Ducharme0Imane Jroundi1Guillaume Jean2Guillaume Lavoie Boutin3Christiane Lawson4Benjamin Vinet5 Dept of Pediatrics, University of Montreal, Montreal, QC, Canada Clinical Research on Childhood Asthma Research Unit, Research Centre, Sainte-Justine University Health Centre, Montreal, QC, Canada Clinical Research on Childhood Asthma Research Unit, Research Centre, Sainte-Justine University Health Centre, Montreal, QC, Canada Clinical Research on Childhood Asthma Research Unit, Research Centre, Sainte-Justine University Health Centre, Montreal, QC, Canada Clinical Research on Childhood Asthma Research Unit, Research Centre, Sainte-Justine University Health Centre, Montreal, QC, Canada Clinical Research on Childhood Asthma Research Unit, Research Centre, Sainte-Justine University Health Centre, Montreal, QC, Canada Background With several commercially available devices measuring respiratory impedance by oscillometry, the agreement between values obtained on different instruments or frequencies remains unclear. Our aim was to examine the agreement between resistance and reactance parameters on two oscillometry instruments using different waveforms. Methods We conducted a prospective cross-sectional study in asthmatic children aged 3–17 years. Reproducible oscillometry measurements were obtained in random order, by blinded operators, at three modes: 5–10–15–20–25 Hz (5–25 Hz) multifrequency mode on the MasterScreen impulse oscillometry system, and both 5–25 Hz multifrequency mode and 7 Hz monofrequency on the tremoFlo C-100 airwave sinusoidal system. Resistance, reactance and within-breath parameters were examined using the intraclass correlation coefficient (ICC), paired t-test, linear regression and Bland–Altman method. Results Of 50 participants, 44 and 38 completed between-device and within-frequency measurements, respectively. Between-device measurements at 5–25 Hz showed high (ICC 0.88–0.91) and good (ICC 0.69–0.87) agreement in resistance and reactance, respectively, but with an absolute within-patient difference (≥0.05 kPa·L−1·s−1) and proportional bias (≥30% per kPa·L−1·s−1) in all parameters and oscillatory frequencies, apart from resistance at 5 Hz. A significant proportional bias was documented in most within-breath parameters at 5 versus 7 Hz on tremoFlo. Conclusion Observed differences in resistance and reactance suggest the need for instrument- and frequency-specific paediatric normative values.http://openres.ersjournals.com/content/5/1/00138-2018.full |
| spellingShingle | Francine M. Ducharme Imane Jroundi Guillaume Jean Guillaume Lavoie Boutin Christiane Lawson Benjamin Vinet Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children ERJ Open Research |
| title | Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children |
| title_full | Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children |
| title_fullStr | Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children |
| title_full_unstemmed | Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children |
| title_short | Interdevice agreement in respiratory resistance values by oscillometry in asthmatic children |
| title_sort | interdevice agreement in respiratory resistance values by oscillometry in asthmatic children |
| url | http://openres.ersjournals.com/content/5/1/00138-2018.full |
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