Advice on Settings

[Snorynomore]

So I am back to using my cpap for longer than two hours once I resolved the pillow leaking water situation. I would appreciate advice on whether my settings are okay or if I should change to reduce my AHI? Honestly, it would be great if someone told me what they see in the graphs. I think I am having more events towards the end of my sleep cycle.

[Pugsy]

Any chance you are sort of starting to wake up when you see those centrals increase at the end of your sleep session?

I see at least one wake up where you turned the machine off and then back on last night. Were there more wake ups than you just went back to sleep?

If the centrals were real you could maybe try reducing EPR and see if the centrals reduced but if you are having much fragmented sleep around that time where the centrals increase and having some wake ups then they might not be real. They might be awake breathing irregularities getting flagged by mistake.

You might want to try to figure out if they are real or related to an arousal.
Jason's central apnea vs cpap pressure video is a good one to review....bottom video
http://freecpapadvice.com/sleepyhead-free-software

[Snorynomore]

Hi Pugsy: I think I am waking up because my body is woken up by my breathing being uncomfortable. In the middle of the night it is bathroom break but in the morning it is not being comfortable with breathing. I take mask off and go back to sleep for 2 hours and then don't wake up rested.

I don't understand the timing or hours at the bottom of the graphs. I thought they corresponded to time on CPAP machine but can't make that match. Can you help me with that and if it is more apneas than waking up, should I think about changing settings?

[Pugsy]

If the numbers don't match check the clock setting on your machine.
https://sleep.tnet.com/home/files/resme ... -guide.pdf

The bulk of your AHI is central and more pressure won't necessarily fix them especially if they are awake breathing or post arousal events.

You need to try to sort out if they look like asleep breathing first or if they are post arousal and not "real".

What does your Flow Limitation graph look like for the same night? It wouldn't be impossible for the FLs to be causing sleep disruption and being a factor in wake ups if that is what is going on.

Oh....the taking the mask off and going back to sleep for a couple of hours is a bad habit to make...you know what they say about bad habits...easy to make but hard to break.
Not to mention the body remembers the most recent 2 hours of untreated sleep apnea sleep and not so much the 6 hours of treated sleep.

[ajack]

The time is set by you cpap machine, you may need to adjust that.

The chart is actually pretty good for a new user. I'd turn off the ramp or raise it 1cm every couple of nights, as soon as I could, I'd have min 7 and max 12, to give the machine a bit of room to move. then review in a week.

as pugsy said, don't count anything while you are awake, awake breathing tricks the machine and looks terrible for everyone.
If you didn't have a lot of CA in the sleep study. I think the CA are probably new user pressure induced and will settle in the coming weeks for most people. If you want to try and recduce them now, you can turn off the epr or down to 1

[Snorynomore]

Hi Pugsy - there is no line on the flow limitation graph so somehow data disappeared. I did not have central sleep apnea as part of my diagnosis so maybe it is awakening. I will tweak the min and high pressure settings and leave it alone for a week to see how it goes. thanks for your links.

[Snorynomore]

Hi Pugsy - there is no line on the flow limitation graph so somehow data disappeared. I did not have central sleep apnea as part of my diagnosis so maybe it is awakening. I will tweak the min and high pressure settings and leave it alone for a week to see how it goes. thanks for your links.

[Pugsy]

Sounds like a plan.

Not sure what happened to the FL graph. If it still stays gone we can revisit trying to figure out what is going on with it.