Need some advice on APAP Range settings

[chill]

While all of this has been fascinating (note to self: never mention EPR or Flex again, ever ) it does not answer my intended question of why my AHI is suddenly so dramatically worse, or what to do about it.

[palerider]

While all of this has been fascinating (note to self: never mention EPR or Flex again, ever ) it does not answer my intended question of why my AHI is suddenly so dramatically worse, or what to do about it.

I see *one* pic posted by you, that shows an ahi of 5 something, and indicates your pressure is too low.

is that the better or worse pic?

can we get more information, like a good one and a bad one?

[chill]

Not sure what happened there, that was supposed to be two different nights. The second one (now removed) ended up in thumbnails. I went with sdb7802's advice on to use a range of 9.5 to 14 last night. My AHI dropped to 1.5.

[attachment=2355]

[Adoniscmj]

Posting some Sleepyhead reports would help get answers. I guess my first step would be to put the Autoset machine into CPAP mode and run it at 9.5 a couple nights to a week to see if that reverts you back to where things were working. Also, you might want to look at things like EPR and RAMP. I had to turn both of those off to get my AHI to settle down, but my case if different - I got the Autoset instead of an Elite even though I was supposed to be on CPAP and not auto. (It's a long story). So, when I started my AHI was up in the 30's with the new machine. I got the AHI down to 3 by turning off everything automatic, shaving my beard off to get leaks under control, and fiddling with the fit of my FFM. Now, I will let it run like the for a week or so, and then slowly start adding things back into the mix going for stability and repeatability foremost.

Yea, this is what I would do as well. If you have had good results at a steady pressure of 9.5 then go with it. It maybe higher due to the machine changing the pressure on you.

[Ghost1958]

I suppose we'll have to just agree to disagree till someone comes up with a manometer and some empirical information

Vesheline is correct. Aflex is flow based. Gives vaying cm of relief based on flow , up to three initally, but will never end an exhalation with more than 2 cm of reduction of the current running pressure.
Cflex + works the same way.
Cflex is a different animal.

[palerider]

I suppose we'll have to just agree to disagree till someone comes up with a manometer and some empirical information

Vesheline is correct. Aflex is flow based.

yes, I know it's flow based, it's the 2cm drop he alleges that I'm disputing.