APAP- Help understanding how pressure changes are determined

[nutricula]

I currently have an Airsense 10 Autoset with a prescription of 16. I am considering changing this over to the autoset mode, just to see if this can provide some relief from the wind tunnel I am in all night. My apnea is much worse on my back, and I can maintain an AHI of less than 1 by sleeping on my side at a pressure of 12. This makes me think the initial prescription of 16 was largely targeted at my 'worst' sleeping position, and giving autoset a shot might allow me to stay at a lower pressure for the majority of the night.

My question(s) is: When in autoset, does my device wait for a hypopnea/apnea event before increasing the pressure? Or does it detect the airway closing before an event can be triggered, and increase the pressure; thereby preventing the event altogether?

[palerider]

My question(s) is: When in autoset, does my device wait for a hypopnea/apnea event before increasing the pressure? Or does it detect the airway closing before an event can be triggered, and increase the pressure; thereby preventing the event altogether?

a mixture. if you suddenly have an apnea or hypo, it can't do anything during that, but if it senses a pattern, like another within a set time, it will then increase pressure to try and head off more.

if it senses snoring, or flow limitations, then, because those are viewed, as you say, as the airway starting to close off, aka, precursor events to apneas, so it increases pressure to help prevent events.

if you run at a lower pressure, then you'll have some events but hopefully not many as it adjusts to your needs.

the main thing with an auto unit is to set the min pressure so that it prevents most of the events, and then only has to raise pressure for exceptions, like possibly rem sleep, or if you turn onto your back for a bit.