What are presdisposing factors to obstructive sleep apnoea?
Macroglossia (acromegaly, hypothyroid, amyloidosis)
- Large tonsils
The partner often complains of excessive snoring and may report periods of apnoea.
What are consequential features experienced from OSA?
- Daytime somnolence
- Compensated respiratory alkalosis
How can sleepiness be assessed?
Epworth Sleepiness Scale → completed by pt +/- partner
- Multiple Sleep Latency TEst (MSLT) → measures time to fall asleep in dark room (using EEG criteria)
What are diagnostic tests for OSA?
- Sleep studies (polysomnography)
- Ranges from monitoring of pulse oximetry at night to full polysomnography where a wide variety of physiological factors are measured including EEG, respiratory airflow, thoraco-abdominal movement, snoring + pulse oximetry
What are the management options for OSA?