Question concerning Aircurve vauto

Can someone explain what exactly epap and pressure support are trying to prevent?
Is it correct that the epap pressure is set to control obstructive apnea’s?
And is pressure support to control hypopneas?
Got a new Aircurve vauto and trying to figure out so as to improve my sleep experience.
If I’m incorrect on my assumptions can someone explain in detail to me.
Thanks

As a general rule we think EPAP for OAs and IPAP for hyponeas.
PS added to EPAP gives you IPAP.
More than one way to increase IPAP...obviously we can simply increase PS but sometimes too much PS isn't a good thing and can actually cause some unstable breathing and we end up with PS triggered centrals so I don't recommend exceeding 5 PS without careful attention to what you are doing and understanding what might happen.
If someone is already using all the PS they maybe need or want...just increase EPAP a little and that will of course force IPAP up a little.
More than one way to accomplish a goal.

In a lab bilevel titration study...most often 4 cm PS is the starting point...and the bulk of the time people will come out of a titration with a PS of 4 or 5.
When DIYing things...never hurts to start with what works for most people and go from there.

Make sense?

Absolutely Pugsy,very well explained. Thanks

Pugsy can you tell me what controls RERA's is it to increase the epap pressure or increase the the pressure support?
Thanks

RERAs are sort of a gray area.
What those flags are is actually the machine saying that the breathing appears to look like the breathing of people who have an arousal related to some sort of breathing disturbance.
These machines can't really measure sleep status so they don't know for sure that you had an arousal or not but they are saying your breathing looks like the breathing of people who have that kind of breathing verified by real PSG sleep studies that is known to be associated with some sort of breathing issue.

When we see a lot of RERA flags...makes us believe that there was a good chance there was a lot of arousals happening even without maybe some of the other normally flagged stuff.
How I would deal with them depends on what a person is reporting in terms of how they feel during the day and how they feel their sleep quality was...along with obviously how many we might be seeing.
When present in consistent high numbers...more EPAP as a baseline is what I would suggest...
When present in mostly random rare numbers...doing anything about them would depend on how they feel if there's not much of anything else going on along with evaluation of anything else that might be disturbing sleep.
It wouldn't be impossible for arousal breathing coming from an arousal related to something else to get miss flagged...these machines are good but not that good. They can miss name any event. They aren't perfect.

Very interesting explanation. I do appreciate it.
Thanks