Apnea and Hypopnea Abdul Alraiyes MD ©2009 Alraiyes
Hypopnea 50% reduction in the nasal pressure for at least 10 seconds
with at least 3% desaturation
©2009 Alraiyes
Apnea(obstructive)
At least 90% reduction in the thermal sensor for at least 10 seconds
©2009 Alraiyes
Apnea(central) At least 90% reduction in the thermal sensor for at least 10 seconds
©2009 Alraiyes
Cheyne Stokes
©2009 Alraiyes
AHI AHI = # of Apnea + # of Hypopnea X 60 Total Sleep time
©2009 Alraiyes