[Disorders of the ventilatory mechanics in patients with respiratory sarcoidosis].

The state of the ventilation apparatus was studied in 158 patients with active sarcoidosis of the respiratory organs. The following methods were used: spirography, registration of the curve of the flow-volume of forced expiration, body plethysmography and esophageal intubation. Various disorders in the ventilation mechanics were detected. They included impairment of bronchial patency, impairment of air distribution in the lungs, changes in the elastic properties of the lung tissue, increased respiration work per 1 1 of ventilation, etc. Impairment of the small bronchi patency (in 66.5 per cent of the patients) and impairment of air distribution in the lungs were the most frequent and the most pronounced disorders in the respiration mechanics. They played a significant role in lowering of the lung ventilation capacity and increasing of energy supply for respiration.