Obstructive Sleep Apnoea Flashcards
1
Q
Pathophysiology
A
Intermittent upper airway collapse during sleep
2
Q
Main Causes
A
Encroachment on pharynx
Nasal Obstruction
Respiratory depression
3
Q
Causes of pharynx encroachment
A
Obesity
Enlarged tonsils
4
Q
Causes of nasal obstruction
A
Nasal deformities
Rhinitis
Enlarged Adenoids
5
Q
Causes of respiratory depression
A
Alcohol
Opiates
Post-op anaesthesia
6
Q
Symptoms
A
Excessive daytime sleepiness
Personality changes
cognitive/functional impairment
snoring
7
Q
Investigations
A
1st - Epworth score
2nd - oximetry
3rd - polysommography (sleep study)
8
Q
What is Pickwickian syndrome?
A
SOB in obese patients. DO NOT confuse with sleep apnoea
9
Q
Treatment
A
Fix underlying cause
Continuous positive airway pressure delivered by nasal mask during sleep
