Noninvasive Positive Pressure Ventilation in Overlap Syndrome
Noninvasive Positive Pressure Ventilation in Overlap Syndrome
Chronic obstructive pulmonary diseases (COPD) coexisting with obstructive sleep apnea is
 called overlap syndrome (OS). Patients with OS seem to have worse prognosis than patients
 with only one disorder. Noninvasive positive pressure ventilation is an efficient treatment
 in obstructive sleep apnea, but the effectiveness in improving outcomes of OS patients is
 still not fully investigated. The aim of this non-randomized concurrent control trial is to
 evaluate noninvasive positive pressure ventilation's effectiveness in OS patients.
Inclusion Criteria:

 -  patients with COPD and sleep apnea dyspnea syndrome

 Exclusion Criteria:

 -  patients with non-stable hemodynamics;

 -  patients with limited life expectancy;

 -  patients with other severe respiratory diseases;

 -  patients with motor neuron diseases;

 -  patients with contraindications for NIPPV