None listed
Conditions
Brief summary
When patients are established on CPAP treatment they must first undergo a titration study of some description which determines the pressure required to hold the upper airway open. Titration studies are commonly performed using a nasal mask but some patients may prefer a full-face or oronasal mask. This study looks at therpeutic pressures for full-face and nasal masks and patient preferences.
Interventions
Subjects will be randomised to either a nasal or an oronasal mask with the alternate mask style to be used on the second night. A chin strap will be used in conjunction with nasal mask. Mask interfaces for continuous positive airway pressure (CPAP) for obstructive sleep cover the patient's nose (nasal mask) or nose and mouth (oronasal mask). The chin strap gently supports the jaw so the mouth is closed when using a nasal mask. Continuous positive air pressure (CPAP) was automatically titrated by an autotitrating CPAP machine on both nights for the total sleep time of the patient
Sponsors
Study design
Eligibility
Inclusion criteria
CPAP naive subjects with obstructive sleep apnea syndrome Referral from sleep laboratory in a university hospital for CPAP titration Respiratory Disturbance Index >15
Exclusion criteria
Previous oronasal operations History of clinically severe nasal or sinus disease Complex sleep disorded breathing Significant comorbid respiratory disease Significant comorbid cardiac disease Orofacial problems precluding the use of a nasal or oronasal mask