Nasal Versus Oronasal Mask in Continuous Positive Airway Pressure (CPAP) Treatment of Patients Affected by Obstructive Sleep Apnea Syndrome (OSAS).
Conditions
Interventions
- OTHER: patients shifted to nasal mask after persistent OSA with oronasal mask
Sponsor
IRCCS Azienda Ospedaliero-Universitaria di Bologna