(10-25-2019, 03:05 PM)tarah Wrote:  .... .first thing to do was to slowly raise the PS by 0.2cm increments, giving my body a chance to get used to each increment for a few days.  That is....your first four points in the graph PS x Median RR suggest your optimum PS would be between 4.2 and 4.8 (likely 4.4); but would  needsome more few points to pin-point the value....to get this we would have to estimate your average normal RR while sleeping (lab studies....hands on stomach counting  * 0.89...etc).
Then once I've settled on a PS that works well, start working on what EPAPmin to choose?...that is..you could  start with your current EPAPmin: 6.0 or lower value. Actually, you could play with PS and EPAPmin, but not changing both  at the same time. What is important is imediatelly start counting your RERA''s-driven awakenings; that's going to be  thereference for your optimum EPAPmin+PS (= projected zero on the graph EPAPmin x RERA(flag+unflagged).
By the way, not long Ago, i found out that is not good set IPAPmax > EPAPmin+PS. That because, we UARS sufferer are hypensensitive to any stimulus (any ridiculous flow reductions, any ridiculous noise, subtle pressure increase), and therefore we awaken easily, and during these awakenings Very often are created false events, which become target for the machine increase unecessarily pressure, disrupted further our sleep. I did this and the result was good, bumps in pressure are prohibited! We don't need such bumps, as soon as we are moving to fine tune EPAPmin+PS.

The other thing I'm sort of struggling with is that FLs are so drastically influenced, for me, by how my nose is functioning during different time periods during the night.  If I can lay on my back without a pillow, my nose works o.k. and I have less FLs and sleep more soundly.  At some point during the night, my back is sort of hurting from laying in one position for so long and I switch to side laying, where my nose doesn't work so well and then I start having FLs and RERAs. Well, this a point i had not considered thus far. It may happens you would have to work out  these problems before anything else (i understood your surgery would be necessary?), otherwise what we have been suggest would work as Just a semi-quantitative approach for your case in general. It would may occur surgery would work out everything, including become unecessary using BPAP (thanks Prana!).
BTW, have you already read Dr. Steven Park's all publications on UARS? If not; strongly recommend.
Good luck

(10-26-2019, 11:42 AM)tarah Wrote: Phew.  Last night was not fun.  So many awakenings.  This kind of difficult breathing all night long.  

Next step I guess it to begin raising PS by 0.2 cm increments and see how things go.  I am feeling so discouraged right now.  Does everyone here have nights like this interspersed with good nights??  Sometimes it's so hard to remain hopeful that I can eventually sleep well again

(10-26-2019, 12:55 PM)tarah Wrote: How exactly are you counting unflagged events?  I cant tell from the flow rate graphs what it is a respiratory arousal event?