OSAS

Question 1

What is OSAS?

Answer 1

Recurrent episodes of complete upper airway obstruction during sleep causing intermittent hypoxia and sleep fragmentation

Question 2

What are Sx of OSAS?

Answer 2

Daytime somnolence, snoring, poor sleep quality, low libido, morning headache

Question 3

What are risk factors for OSAS?

Answer 3

Obesity
Retrognathia or micrognathia
Wide neck circumference

Question 4

What Ix in OSAS?

Answer 4

Polysomnography: full or limited. Involves measuring sats, EEG, respiratory airflow, snoring, thoraco-abdominal movement
TOSCA
Epworth sleepiness score

Apnoea-hypopnoea index. > 15 is diagnostic, 5-15 is diagnostic with symptoms

Question 5

What is Rx of OSAS?

Answer 5

Weight loss, avoid alcohol
tonsillectomy can help

CPAP to keep airways open
Mandibular advancement device if CPAP not tolerated

Surgery for face if severe

MUST inform DVLA if daytime sleepiness

Question 6

What are complications of OSAS

Answer 6

Hypertension
R heart strain 
CVD
Stroke
RTA
Type II respiratory failure