QUANTIFICATION OF PREDICTIVE VALUES OF CERTAIN PARAMETERS INCLUDING THE EXPIRATORY VARIABILITY INDEX IN THE FOLLOW-UP OF CHILDREN WITH RECURRENT BRONCHIAL OBSTRUCTIONS

This study shows the quantification of predictive values of certain parameters including measurements with the Ventica-system. This new device has recently started to be used in the Balkans with results being used as relevant values in monitoring lung function in young children. Objective: usage of this method as one of the standards for monitoring lung function in preschool children. Over a 2 year period we performed measurements on 52 children aged 1-6 years who have recurrent bronchitis. Inclusion criteria: at least 3 lower respiratory infections or exacerbation in the previous year with the need for treatment in intensive care, or at least two broncho-obstructive episodes. Exclusion criteria: tracheomalacia and bronchopulmonary dysplasia. Ventica system by the Finnish company Revenio Research Oy, was used. The measurement is based on continuous impedance pneumography in which the machine calculates the appropriate values and gives the results in the form of an EVI (Expiratory Variability Index).In determining the significance of the contribution to the prediction of recurrent bronchitis it was found that increasing EVI per unit value reduces the risk of chronic bronchitis by 15.10% p>0.05(p=0.258). In this study the increasing of EVI values did not show statistical significance with the reduction of broncho-obstruction in chronic bronchitis. Nevertheless, more extensive studies show the undoubted benefits in using this method. Thus, more investigation are needed in this field to objectify the usage of one of the non-invasive lung function monitor.