- Snoring: Sign of partial upper airway obstruction during sleep
- Sleep Apnea: Cessation of airflow for at least 10 seconds in 30 episodes
- Types:
- Central: Failure of respiratory drive from the brain
- Obstructive (OSA): Anatomical narrowing in upper airway
- Mixed
Investigation and Treatment
- Sleep Study: EEG, EKG, EOG, pulse oximeter, respiration rate, nasal and oral airflow
- Treatment:
- Nonsurgical: Behavior modification, medical treatment, CPAP
- Surgical: UPPP, mandibular advancement, tongue reduction
