Expiratory variability index (EVI) is associated with the severity of acute bronchial obstruction in small children: A proof-of-concept study.
Ville-Pekka SeppäMirjana TurkaljAnton HultIvana Maloča VuljankoDavor Plavecnull nullDamir ErcegGiorgie PetkovićPublished in: Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology (2020)
EVI was found to be a sensitive, objective marker of acute BO, showing strong association with changes in clinical status in wheezy children aged 1-5 years.