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. 2020 Oct 19;6(4):00167-2020.
doi: 10.1183/23120541.00167-2020. eCollection 2020 Oct.

Expiratory variability index is associated with asthma risk, wheeze and lung function in infants with recurrent respiratory symptoms

Ville-Pekka Seppä  1 , Javier Gracia-Tabuenca  2 , Anne Kotaniemi-Syrjänen  3 , Kristiina Malmström  3 , Anton Hult  1 , Anna S Pelkonen  3 , Mika J Mäkelä  3 , Jari Viik  2 , L Pekka Malmberg  3
Affiliations

Expiratory variability index is associated with asthma risk, wheeze and lung function in infants with recurrent respiratory symptoms

Ville-Pekka Seppä et al. ERJ Open Res. .

Abstract

Impedance pneumography enables the measurement of the expiratory variability index (EVI) at home during a night's sleep in infants with recurrent respiratory symptoms. EVI is associated with asthma risk, symptoms and lung function. https://bit.ly/2PF2cx8.

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Conflict of interest statement

Conflict of interest: V-P. Seppä reports three patents with royalties paid to Revenio Group Inc. and is an employee of Revenio Group Inc., which commercialises impedance pneumography technology. Conflict of interest: J. Gracia Tabuenca has nothing to disclose. Conflict of interest: A. Kotaniemi-Syrjänen has nothing to disclose. Conflict of interest: K. Malmström has nothing to disclose. Conflict of interest: A. Hult is an employee of Revenio Group Inc., which commercialises impedance pneumography technology. Conflict of interest: A.S. Pelkonen has nothing to disclose. Conflict of interest: M.J. Mäkelä has nothing to disclose. Conflict of interest: J. Viik has three patents with royalties paid to Revenio Group Inc. Conflict of interest: L.P. Malmberg has nothing to disclose.

Figures

FIGURE 1
FIGURE 1
Expiratory variability index (EVI) compared with a) asthma risk groups (p=0.022), b) main symptom (p=0.044) and c) lung function (r=0.52, p=0.02). Circles and whiskers denote the mean and its 95% confidence interval, respectively. Dots represent results from individual patients. Two patients did not have maximal flow at functional residual capacity (V′maxFRC) results available.
See this image and copyright information in PMC

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References

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