Central's [and exhale relief connection?]

[GuppyDRV]

Clear as mud......I Think!

I'll get some charts up tomorrow as suggested. Oddly, things do settle down over time with regard to frequency of events. Each and every change takes approximately two weeks to find some normalcy.

I went from 9 fixed with Aflex 1 to 8 fixed no Aflex. Central's gone but Obstructive up. I feel better with these settings so for now I'm sticking with them. Aflex of 1 with pressure 9 fixed yielded an EPAP of 7.5 I though for sure 8 fixed would have controlled Obstructive as it was above the 7.5 value but I guess not.

I seem to feel worse when Central's are higher. Is there any intel on this? Is this whole physiology messing with the brain in additional ways beyond just co2? It's odd to me that Obstructive Apnea is not as troublesome to my sleep as Central.

Well at least it's entertaining trying to figure some of this out. Thanks for the help.

GuppyDRV

[ajack]

Have a look at the events stats on the left hand side. If the CA are running longer than 20-30 seconds, say 1 or 2 minutes. You may have an issue at 1 per hour, but I seriously believe this wont be the case.

[Sleeprider]

I think fixed pressure will resolve your issues. Just take your time and move pressure by small increments until the OA events are extinguished or reduced, and watch for re-emergence of centrals. It' a basic titration approach to add a little pressure at a time to achieve the desired outcome and reduce that input of pressure if you go too far.

Glad you're feeling better, and I have no idea why one form of apnea may feel less obtrusive than another, however, you should look at event duration as a possibility.

[jerry1967]

jerry1967, I wasn't laughing at you I was laughing with you. The first link Sleeprider posted I looked up and I couldn't spell half the words.

Thanks I don't feel so bad or like a dummy now. lol

[beet]

I think fixed pressure will resolve your issues.

If fixed pressure is uncomfortable, try reducing the EPR setting.  For me, reducing the EPR from 3 to 2 markedly reduced my CA's.  

For me, a fixed pressure (effectively EPR = 0) was uncomfortable, making exhalation feel effortful.

[GuppyDRV]

I'm going to try and get a chart up tonight. I've actually found that I like no Aflex whatsoever! I might be the strange one.....not the first time in life.

GuppyDRV

[Reznik]

When thinking about your data, please bear in mind that the methodologies used by these machines to determine whether you are having a central or an obstructive apnea are not perfect.  They can produce incorrect results.  

I'm not certain, but I suspect you might be better able to tell whether an apnea is central or obstructive by looking at the actual flow data.  For example, I'm finding that most of my apneas are preceded by a larger than normal breath.  It almost looks as if I'm taking in a deep breath and then holding.  But, my machine identifies about 25% of those as obstructive, even though I suspect that they're all central.