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Effects of combination therapy indacaterol/ glycopyrronium versus tiotropium on moderate to severe COPD: evaluation of impulse oscillometry and exacerbation rate

Molino, Antonio ; Simioli, Francesca ; Stanziola, Anna Agnese ; Mormile, Mauro ; Martino, Maria ; D’Amato, Maria

Multidisciplinary respiratory medicine, 2017-12, Vol.12 [Periódico revisado por pares]

Pavia: PAGEPress Publications

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  • Título:
    Effects of combination therapy indacaterol/ glycopyrronium versus tiotropium on moderate to severe COPD: evaluation of impulse oscillometry and exacerbation rate
  • Autor: Molino, Antonio ; Simioli, Francesca ; Stanziola, Anna Agnese ; Mormile, Mauro ; Martino, Maria ; D’Amato, Maria
  • Assuntos: Airway management ; Chronic obstructive pulmonary disease ; Spirometry
  • É parte de: Multidisciplinary respiratory medicine, 2017-12, Vol.12
  • Descrição: Background: Small airways are considered the major site of airflow limitation in COPD. Impulse oscillometry (IOS) is a forced oscillation technique, which provides passive measurement of lung mechanics. It can differentiate small airway from large airway obstruction and is more sensitive than spirometry for peripheral airway disease. In this study the efficacy of the combination of Indacaterol/Glycopirronium (IND/GLY) versus Tiotropium on airway resistance (R5, R20, R5–20), lung reactance (X) and resonant frequency in moderate to severe COPD patients has been evaluated. We also evaluated inspiratory capacity (IC), forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), exacerbation rate and quality of life. Methods: Forty patients were monitored with forced oscillation technique and spirometry. Patients were randomized in 2 groups: 20 received fixed dose once daily Indacaterol/Glycopyrronium (Group A) and 20 received single Tiotropium (Group B). The oscillometry parameters were the measure of resistance in the airways at 5 Hz (R5), at 20 Hz (R20) and the lung reactance (X). Results: There was a statistically significant difference between pre-dosing at V1 and at follow up visits in R5, R20 and X values in patients receiving dual bronchodilation but not in control group. Pre-dosing IC value at follow up visits in patients receiving dual bronchodilation had a statistical significant variation. Conclusions: The “new” bronchodilator combination LABA/LAMA significantly reduces bronchial obstruction in small airways too. The oscillometry demonstrated greater sensitivity compared with spirometry for monitoring outcome measures of airway obstruction and the effect of long-term therapy.
  • Editor: Pavia: PAGEPress Publications
  • Idioma: Inglês;Italiano
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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