[Respiratory response to inspiratory resistive load changes in patients with obstructive sleep apnea syndrome].

Patients with OSA have many episodes of increased airway resistance because of repeated collapses of upper airways during night. The aim of this work was to evaluate respiratory response during chemical stimulation without and with added inspiratory resistive load (10 cmH2O/L/sec). The studies were performed during quiet breathing with air and during hypercapnic and hypoxic rebreathing tests without and with inspiratory resistive loading in 23 obese (BMI = 34.

Respiratory responses to chemical stimulation in patients with obstructive sleep apnoea.

Chemical control of breathing in obstructive sleep apnoea (OSA) patients has been studied by many authors. The results of previous studies, especially those dealing with hypoxic drive, are discordant. Respiratory responses were studied during hypercapnic and hypoxic stimulation in a group of 37 normocapnic patients with OSA during wakefulness.

[Functional disturbances in patients with interstitial lung diseases without signs of restriction].

Restriction is a typical functional abnormality in interstitial lung diseases (ILD) patients but not all of them represent this pattern. The aim of this study was to evaluate 164 patients with ILD in whom normal lung volumes (FVC and TLC > 80% predicted) were found. There were 111 patients with sarcoidosis (phase I--9, II--77, III--25 patients), 25 patients with pulmonary fibrosis, 12 patients with allergic alveolitis and 16 patients with disseminated radiological changes in the lungs of different etiology.

[Pattern of breathing and obstruction pressure in patients with airway obstruction after inhalation of bronchodilators].

The neuromuscular drive is increased in patients with an airway obstruction. The aim of the study was to estimate an influence of beta-agonist on breathing pattern and mouth occlusion pressure (P0.1) in patients with reversible and nonreversible airway obstruction.

[Chemical control of breathing in patients with obstructive sleep apnea].

The authors have studied chemical control of breathing in 37 normocapnic patients with OSA. These patients had increased apnea-hypopnea index (AHI = 51 +/- 22), obesity (BMI = 32.4 +/- 5.