Yes...in fixed bilevel mode lowering IPAP will reduce PS.

PS is nothing more than the difference between EPAP and IPAP.

If you were in auto mode there is a separate setting for PS but in fixed mode PS is determined simply by the EPAP and IPAP settings themselves.

You can try lowering PS down to 3 and 2 or 1....but unless a miracle happens (and it isn't totally impossible) I don't see it resolving your problems....but worth trying because obviously this isn't working so great. Miracles do happen.
The woman who went from 4 to 3 PS....I was totally surprised that miracle happened. It was a complex issue...the centrals were brought on by higher pressure needs....no centrals at PS of 4 at a little lower pressures but way too many Obstructives. As soon as we increased the pressure to take care of the Obstructives she swapped events...the obstructives went away only to be replaced by centrals...and her sleep was still crap and she still felt like crap.

Problem was....she needed PS for exhale relief because of her pressures running near 20...we had to have the minimum at 16 (was in auto mode) at least for the obstructive stuff and she simply couldn't get comfortable at those pressures enough to sleep well without some substantial exhale relief.
So PS was needed for comfort so she could even sleep.
It was just on a whim I suggest simply changing 4 PS to 3...in hopes of still offering the comfort she needed and maybe lowering the centrals to a number that wasn't so frightening. I was totally blown away when the centrals essentially went from near 20 per hour to a nice normal 1 to 2 per hour with such a minor change.

Miracles can happen but there is a reason they are called miracles...they don't happen very often.

I got more replies back yesterday from the DME and was told to keep using the machine with the high AHI for another few weeks and when it shows I am not being treated correctly I can then move to ASV.. If ASV treats me well they will send in my reports to try for funding the machine.. So if it all goes right I'll be on ASV in May and finally get some Sleep! Can not wait!

What's that about 6-7 months from the Sleep study to getting the correct machine to treat Complex Apnea .. No wonder there is low success with XPap therapy...

Yes.

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I had my Lung Function testing yesterday, it showed high Astmha and COPD.. They have be going back in to the Specialist early again to get on some needed inhalers.. I will also be getting switched to ASV next Monday.. They have the System One Auto SV that I will be switching to... Anyone know if this machine is worth getting or should I seek another DME with other options?

Ask them if it is a 950 or 960 model.

960 is the newer and heated hose capable model and has more customizable features than the 950.
More chance of being able to tweak various settings to optimize comfort and therapy.

It's a good machine. I have used the 960 myself.

The DreamStation is the latest model after the PR S1 machines and they have a model like the 960 but it really doesn't have any advantages over the 960 that I can think of and it won't work with SleepyHead at all.
The 960 works decently with Sleepyhead depending on the settings chosen.
You don't want to have to get and use Encore Pro unless you just have to and with the DreamStation ASV Encore Pro is the only software that works with it at this time.

Well they wanted to keep me as a client and when I said I was going to another DME that had the RESMED AIRCURVE ASV they told me they could special order it for me and will be in by the end of the month this being the machine I will be funded for ... That's so awesome finally the machine that I need and a RESMED at that .... btw the system one was a 950 ... I'm pretty happy if this actually works out . . Handing in the script tomorrow and the request goes out in the afternoon ... couldnt imagine if I was not part of the forum here and how many get taken advantage of ..

Good job.
No way would I accept the 950. Way old model and wouldn't surprise me that it most likely had been used in the past.

I think the ResMed AirCurve 10 ASV is a top notch machine. I own the older brother in the S9 model line. Sweet machine.

Quick question anyone with the P10 mask using the ASV and how they stand up, again with the DME telling me I'll have to go to a FFM moving to this machine, I love the P10 and hope I can keep using it ...

More BS.
Use your P10. It will be fine.
Years ago the old versions of ASVs did require full face masks but not in the last 3 generations of ASVs. Had something to do with learning a circuit which is no longer done on newer models. Even that 950 didn't do it.

Your pressures will likely go higher at times and that can present a challenge with any masks but actually more so with a full face mask.

Contrary to what DMEs tell people...using a nasal pillow mask at pressures that the ASVs deliver won't be causing the pillow to go flying across the room like a balloon you stuck a pin in.
And the pillows won't wear out any faster because of the pressure.

We've got people using fixed bilevel pressures exceeding 20 cm all night long using nasal pillows and they do quite well.

Don't let them try to force a FFM on you unless you just want one.
It's NOT needed.
I did probably 4 or 5 years on the S9 Adapt (which is ASV) and regularly saw pressures over 20 cm at times...with my nasal pillow mask and we both did just fine. FWIW...I get months and months of use out of 1 nasal pillow and it seals great even at pressures over 20 cm.

Now if we were having this discussion say 10 years ago with the machines back then...yeah, you would most likely need a FFM but not now.

My Roommate uses a resmed asv and p10 mask.

Works well.

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Thanks guys .. Yeah that is what I thought... Shakes head* I don’t understand DME’s and their constant need for BS or are they really that ignorant with therapy... Every thing from the machines to masks and in between ...

Six of one, half dozen of the other.

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Wow the DME actually pulled through and the Aircurve ASV has been shipped and I am picking it up tomorrow afternoon.. Now will be the hard part of learning how to set the machine up. The DME with each of the past machines played the whole guessing game on pressures etc.. I feel fine at the pressure atm on the VAuto but it has been no help with treatment as for the switch to ASV... With the new machine should I keep the pressure the same with Auto turned on, will this take care of the Central events?

I am so happy... It's here... The new ASV ..

woohoo!

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Yeah it's pretty exciting...Can't wait to try it out tonight, and who knows maybe I'll have some solid rest finally...

One thing I noticed is the HumidAir chamber has a S on it the last one with the VAUTO had a C... is this the dishwasher safe one?

I'm afraid I don't know which is which...

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The standard humidifier comes with new machines...

I tried to find S vs C on the chambers last night to see if I could find which one was what. I never could.
I would assume S is for standard but have no idea what the C means.
Maybe S is "safe for dishwasher"...heck, I don't know.

I don't have a dishwasher...so I never really paid that much attention to which chamber was okay or not for dishwasher.

If you can find a part number somewhere...that will show the difference but I don't know if you can find a part number anywhere and even if it was on the paperwork...doesn't mean someone didn't swap something.