Week 2 What is causing sleep apnea?

Question 1

Causes of OSA?

Answer 1

combination of:

Anatomic airway narrowing

Wall collapsibility with sleep induced loss of muscle tone

Insufficient dilator muscle contraction on inspiration

Question 2

Why do you snore?

Answer 2

Your windpipe closes down a little bit when you go to sleep. Your muscles relax you have a smaller diameter tube -> snore

Question 3

Worst position to sleep on if you are a snorer?

Answer 3

on the back

Question 4

OSA is commonly associated with ______ and ______

Answer 4

hypoxemia (low blood O2)

sleep fragmentation (arousals)

Question 5

Episodic hypoxia and arousals lead to……?

Answer 5

Increased symp tone and blood pressure and HR

Fragmented sleep - EDS

Question 6

Consequences of OSA (Medical)?

Answer 6

Hypertension
Coronary heart disease
cardiac hypertrophy (heart failure)
Cardiac arrythmias 
Sudden nocturnal death 
Impotence

Question 7

If you have mild apnea, you are almost ____ as likely to get hypertension as someone who has no obstructed airway.

Answer 7

Twice

Question 8

True or False?

OSA is not an independent factor for the development of hypertension

Answer 8

FALSE!

OSA is an independent factor

Question 9

Treatment of OSA can reduce ______

Answer 9

Hypertension