Sleep Apnoea Flashcards
1
Q
What is OSAS?
A
Obstruction of Upper airways during sleep
2
Q
What can cause OSAS?
A
Muscle relaxation
Narrow Pharynx
Obesity
3
Q
What are some symptoms of OSAS?
A
Oxygen Desaturation during sleep Micro-arousals Sleep disturbance- unrefreshing sleep Daytime somnolence Poor daytime concentration Heavy Snoring
4
Q
Investigations?
A
Clinical History Epworth Questionnaire- rate chance of dozing on various activities -polysomnography -pulse oximetry -limited sleep study
5
Q
Why is it bad?
A
- Leads to poor quality of life
- Increased risk of RTA
- Increased risk of HTN and stroke
6
Q
Treatment of OSAS?
A
- Avoid alcohol & tobacco smoke
- Don’t drive
- CPAP
- Weight loss
- Mandibular repositioning splint
7
Q
OSAS in children?
A
- Presents as Hypoventilation at night
- Associated with open mouth breathing
- Enlarged tonsils- treat by tonsillectomy
- common in pre-school kids.
8
Q
Mild OSAS
A
5-15 desaturation per hour
9
Q
Moderate OSAS?
A
15-30 desaturations per hour
10
Q
Severe?
A
> 30 desaturations per hour
11
Q
Normal people?
A
0-5 desaturations per hour
12
Q
What can cause Sleeplessness?
A
- Medication
- Melatonin levels
13
Q
Define Melatonin
A
Hormone which regulates sleep/ wake cycles
14
Q
What can cause excessive daytime sleepiness?
A
- Not enough sleep
- OSAS
- Narcolepsy
