Evidence by polysomnography of ≥5 central apnoeas per hour of sleep
Evidence by polysomnography of ≥5 obstructive apnoeas/hypopnoeas per hour of sleep + ≥1 of: nocturnal breathing disturbances (snoring, snorting, gasping, breathing pauses); daytime sleepiness/fatigue/unrefreshing sleep not explained by another disorder; OR ≥15 obstructive apnoeas/hypopnoeas per hour of sleep regardless of accompanying symptoms
B. The disorder is not better explained by another current sleep disorder
No additional structured criteria supplied
A. Evidence by polysomnography of ≥5 central apnoeas per hour of sleep B. The disorder is not better explained by another current sleep disorder
A. Evidence by polysomnography of ≥5 obstructive apnoeas/hypopnoeas per hour of sleep + ≥1 of: nocturnal breathing disturbances (snoring, snorting, gasping, breathing pauses); daytime sleepiness/fatigue/unrefreshing sleep not explained by another disorder; OR ≥15 obstructive apnoeas/hypopnoeas per hour of sleep regardless of accompanying symptoms
Idiopathic central sleep apnoea; Cheyne-Stokes breathing; Central sleep apnoea due to medication or substance; Treatment-emergent central sleep apnoea
Mild; Moderate; Severe
Obstructive sleep apnoea (obstructive vs central events on PSG - distinguishable by respiratory effort monitoring); Primary cardiac or neurological disorder causing Cheyne-Stokes; Medication-induced respiratory depression (vs primary CSA)
Central sleep apnoea (different respiratory events; different mechanism); Primary insomnia (no respiratory events; no excessive daytime sleepiness); Hypersomnolence disorder (no respiratory events on PSG)