Eosinophil values in exacerbation and stable chronic obstructive pulmonary disease and its relationship to maintenance therapy in stable chronic obstructive pulmonary disease patients

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Abstract
Background: Chronic obstructive pulmonary disease (COPD) is characterised by persistent and progressive airflow limitations. The study aimed to determine the relationship between eosinophil values in patients with stable and exacerbated COPD, and the relationship of eosinophil values with two drug regimens used as maintenance therapy in stable COPD. Materials and methods: This cross-sectional study and the variables used in this study were eosinophil counts in stable and exacerbated COPD patients. Results: Eighty-three patients with stable and exacerbated COPD were included. Stable COPD (63.9%) was predominant, with the highest degree of symptoms in group A 18 patients (34%) and Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2; 35 patients (66%). The degree of COPD exacerbation was dominated by Type II COPD 15 patients (50%). Eosinophil counts in patients with stable COPD were less than 100 cells/mm3 37 patients (44.6%), while in patients with COPD exacerbation, it was greater than 100 cells/mm3 with a total of 30 patients (36.1%). Long acting muscarinic antagonist class of drugs was the most used treatment as maintenance therapy in stable COPD 34 patients (64.2%). Conclusion: The eosinophil counts in patients with COPD exacerbation were significantly higher than those in patients with stable COPD. The provision of maintenance therapy in the long acting β-2 agonist + inhaled glucocorticosteroid group of stable COPD patients was generally provided to COPD patients with eosinophil values greater than 100 cells/mm3, and the provision of long-term maintenance therapy in stable COPD patients was generally given to COPD patients with eosinophil values less than 100 cells/mm3.

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