Obstructive sleep apnoea

Question 1

Three risk factors for obstructive sleep apnoea?

Answer 1

  Obesity 
 Middle age
  Male 
  Smoker 
  EtOH 
  Idiopathic pulmonary fibrosis 
  Structural airway pathology: e.g. micrognathia 
  NM disease: e.g. MND

Question 2

What is a key question to ask during history?

Answer 2

daytime sleepiness?

Question 3

Two complications of OSA

Answer 3

MI
Stroke
Heart failure
Type 2 respiratory failure

Question 4

How is OSA diagnosed?

Answer 4

polysomnography= sleep study

Question 5

What is the management of OSA?

Answer 5

weight loss
avoid smoking and alcohol
CPAP
surgery to relieve pharyngeal obstruction

Question 6

Two clinical features of OSA?

Answer 6

nocturnal- snoring, choking, gasping

daytime- headache, poor memory and attention, day time sleepiness, irritability, depression

Question 7

List two things that are assessed during sleep study

Answer 7

ox sats
HR
position
flow

Question 8

How is OSA diagnosed based on apnoea/hypopnoea index? (AHI)

Answer 8

AHI >15 is diagnostic of OSA, or 5-15 with symptoms