First night of ResMed 11, 24 AHI mainly CA.

[Sammy21]

Slept for the first time with ResMed 11 Vauto. My sleep study had 12 CA'S, and my sleep titration just had 3. I had 24 AHI'S mainly CA about 71 last night. Looks like cheyne stokes could it potentially be from just treatment induced? My settings are 9/5. With Easy breathing on, MED trigger and Cycle. TI Min .5 and TI MAX 3.2. Just changed that tonight to see if that can change. Should I be concerned? 
       

[Deborah K.]

I suggest that you raise your trigger to very high. That should knock out lots of the CAs.

[Sammy21]

That definitely worked! 24 AHI to 6.88, any advice on how to reduce Hypopneas? I did turn off easy breathe I believe that's EPR mode for most devices. Would that help my hypopneas? As well as does sleeping on a flat pillow help with hypopneas? 
   

[HalfAsleep]

Doublecheck the mode on your unit. I have a new Aircurve 10 VAuto, and the DME set it to CPAP rather than VAuto, so I had over 150 CA's per night for a few nights. Eeek!

It doesn't look like the mode is set on your unit, judging by the settings list on the left panel. Maybe someone else can chime in on this, since I don't have an Aircurve 11.

[Sammy21]

Yes the mode on my Machine is set up S. I failed CPAP I would have trouble evening fall asleep on CPAP.

[SarcasticDave94]

You may be better to much better off in I think it'll be BPAP or VAuto. I've not used one of these lower level ResMed before.

The goal is to give you a range of EPAP and IPAP with PS mixed in.

Edit, I meant VPAP...

[Dormeo]

For the VAuto 10, the setting you want is VPAPAuto. You can emulate your current settings with min EPAP of 5, max IPAP of 9, and PS of 4. Keep trigger at Very High, per Deborah K. In your place, I would stick with those settings for another few nights before seeing whether additional tweak might help.

Why is the amount of time on the machine so short? And how much of the time do you think you were asleep?

[Sammy21]

Just curious why set it to VPAPAuto? Isn’t that just APAP? Is Vpapauto the same as BiPap?

So I just got my machine like 2 weeks ago, the one with the hyponeas I fell asleep before putting the mask. And the other two I ripped them off in the middle of the night, felt like I was suffocating.

[SarcasticDave94]

VPAPAuto gives ranges to the pressures, it's still bilevel/BPAP. One aspect of S mode is your pressures are static EPAP and IPAP, and has zero room to Auto adjust for varying needs overnight. Static S means if you need for example 12 EPAP, you need to set it there. The VPAPAuto permits you to have that range to start a bit lower for comfort.

There's likely other differences between S mode and VPAPAuto but I'm focusing on pressure ranges or not.

[Crimson Nape]

"S" mode does not report Flow Limitations. VAuto does.
- Red