Clearly, any underlying cause, such as hypothyroidism or acromegaly, must be sought and treated. CPAP nasal mask. Nasal mask used for continuous positive airway pressure. The same type of mask can be used for nasal ventilation. Resolution of sleepiness after nasal CPAP therapy.
Most patients are within the normal range following treatment.
Manual titration of the individual pressure required by the patient overnight used to be required, now this process can be done quite adequately automatically by so-called 'intelligent' CPAP machines. These sense snoring, flow limitation, hypopnoeas and apnoeas which leads to appropriate raising or lowering of the pressure. This overnight pressure profile can then be reviewed in the morning and an appropriate fixed pressure chosen for subsequent home use. There is no evidence that use of an 'intelligent' machine is of any value used at home long-term, although there are theoretical reasons why it might be. Moving the jaw forward enlarges the retroglossal airspace.