Sleep 3

Question 1

Which patients should NOT get adaptive servo-ventilation?

Answer 1

OHS, Cheyne-Stokes, neuromuscular dz

Question 2

Which patients SHOULD get adaptive servo-ventilation (or timed BiPAP)?

Answer 2

treatment emergent CSA (refractory to CPAP)

Question 3

Why shouldn’t neuromuscular dz or OHS pts get adaptive servo-ventilation?

Answer 3

it targets the pt’s own baseline

Question 4

Why shouldn’t heart failure pts use adaptive servo-ventilation?

Answer 4

increased mortality

Question 5

Tx for central sleep apneas of CHF

Answer 5

none!

Question 6

3 requirements for hypoglossal nerve stimulation (prior to DISE)

Answer 6

Mod-severe OSA; age ≥22; BMI ≤32

Question 7

To qualify for hypoglossal nerve stimulation, pts must have _____ upper airway narrowing on drug-induced sedation endoscopy (DISE).

Answer 7

Anteroposterior

Question 8

Dx criteria for narcolepsy type 1

Answer 8

hypocretin deficiency OR cataplexy + 2 sleep onset REM periods + avg. sleep onset <8 min

Question 9

Dx criteria for narcolepsy type 2

Answer 9

MSLT <8 min + 2 sleep-onset REM periods

Question 10

Dx criteria for idiopathic hypersomnia

Answer 10

routine sleep >11 hrs/ day OR MSLT<8 min + 0-1 sleep-onset REM periods

Question 11

How does high altitude induce central apnea?

Answer 11

hypoxic respi drive 🠖 🠗CO2 🠖 no hypercapnic respi drive

Question 12

2 Tx options for primary central sleep apnea

Answer 12

CPAP; O2

Question 13

Which patients should not undergo Home Sleep Apnea Test (HSAT)?

Answer 13

heart failure (higher risk of central apnea)