The rate of mucociliary transport (MCT) in dogs with an experimental pulmonary tuberculosis and concurrent suppurative endobronchitis (SEB) and just with the latter was measured. The treatment effect was achieved by an endobronchial radiation with a CO2-laser unfocused beam of 3.56 and 5.3 w/cm2 power density, and the dogs in the control group were subjected to an endobronchial introduction of furagin. A comparison of the endoscopic picture and MCT rate findings made it possible to believe that the latter index appeared to be more reliable than a visual inspection of the bronchial mucous membrane. An active specific process in the lungs brings about MCT rate inhibition while the concurrent SEB aggravates these changes to a great extent. The radiation of the bronchial mucous membrane with the CO2-laser unfocused beam produces an immediate positive effect on MCT rate normalization. Better results were observed at a power density of 3.56 w/cm2.
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