D1.47 - Assessment of Asthma Control in Elderly Patients Using Forced Oscillation Technique, Spirometry, and Asthma Control Test in Relation to GINA Classification

Poster abstract

Background

Bronchial asthma is a chronic inflammatory airway disease whose prevalence increases with age. In elderly patients, spirometry may be difficult to perform reliably, which encourages the search for alternative diagnostic methods. The Forced Oscillation Technique (FOT) enables assessment of airway mechanics during normal breathing and may provide valuable clinical information.

Aim of this study was to evaluate asthma control and treatment effectiveness in elderly patients based on the Asthma Control Test (ACT), GINA classification, spirometry, and FOT, and to compare their clinical utility.

Method

The study included 105 patients aged ≥65 years with diagnosed bronchial asthma. Each participant completed the ACT and underwent spirometry (FEV₁, FVC, FEV₁/FVC) and FOT (R5, R20, R5–R20, X5, AX). The treatment level was classified according to GINA (Step 1–5). Statistical analyses were performed using nonparametric tests and Spearman’s rank correlation. 

Results

A significant c The orrelation was found between ACT score and both spirometric and FOT parameters. Lower ACT values were associated with lower FEV₁% and higher R5 and AX (p < 0.05). Patients receiving more intensive treatment (GINA Step 4–5) had poorer asthma control and less favorable FOT results

Conclusion

A significant c The orrelation was found between ACT score and both spirometric and FOT parameters. Lower ACT values were associated with lower FEV₁% and higher R5 and AX (p < 0.05). Patients receiving more intensive treatment (GINA Step 4–5) had poorer asthma control and less favorable FOT results