Оценка температуры выдыхаемого воздуха у пациентов с различным течением хронической обструктивной болезни легких

Abstract

INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is an important medical problem of modern society. COPD is characterized by a heterogeneous course due to individual trajectories of pulmonary function decline, differences in the frequency of exacerbations and comorbidity. The exhaled air temperature is a parameter associated with the activity of local inflammation in the respiratory tract in COPD and, accordingly, the nature of the course of the disease. AIM: To study peak values of exhaled air temperature in patients with heterogeneous COPD. MATERIALS AND METHODS: The exhaled air temperature was assessed in patients with COPD phenotype with frequent exacerbations in comparison with patients with stable COPD and rare exacerbations and a group of healthy individuals. RESULTS: It was shown that the peak values of exhaled air temperature decreased in patients with COPD with rare exacerbations compared with healthy controls (p < 0.01), but increased in patients with COPD with a phenotype of frequent exacerbations compared with both the control group (p < 0.01) and COPD with rare exacerbations (p < 0.01). CONCLUSION: The stable course of COPD with rare exacerbations is characterized by a decrease in the values of the exhaled air temperature compared with the healthy control, while in COPD patients with the phenotype of frequent exacerbations, the exhaled air temperature increased compared with the healthy control.