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Expiratory variability index (EVI) is associated with the severity of acute bronchial obstruction in small children: A proof‐of‐concept study

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Lung function testing in small children is cumbersome. However, reduced variability of tidal breathing recorded using impedance pneumography (IP) during sleep was recently found to be a potential objective marker… Click to show full abstract

Lung function testing in small children is cumbersome. However, reduced variability of tidal breathing recorded using impedance pneumography (IP) during sleep was recently found to be a potential objective marker of wheeze in children aged 1‐5 years. We aimed to investigate how an acute bronchial obstruction (BO) and its severity, and recovery thereof reflect in expiratory variability index (EVI).

Keywords: acute bronchial; small children; bronchial obstruction; variability index; variability; expiratory variability

Journal Title: Pediatric Allergy and Immunology
Year Published: 2020

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