sleeplessswimmer

Last night was my best night thus far. 5 CA and 3 Hypopneas. I've been below 5 since the 2nd night with most nights being 2's or 3's. I'm curious why the centrals are going away when my machine isn't really capable of treating them. It leads me to believe that the CA was being brought about by hypopneas and awakenings.

Looking closer, my CSR flagged area looks like my CA flags, just slightly shorter and not enough to be called an apnea.

Might I be one of these persons with Centrals that aren’t enough to justify an ASV? Could my machine be set to a fixed pressure and do a home titration? Start at 4 and work up, see if it’s effective?

I do plan to get in touch with my doc today.

With respect to the CA, I’m not sure that the APAP is causing them. I had 18 of them in my in lab study along with 28 hypopneas. So perhaps the APAP is wiping out hypopneas with little pressure and the CA’s are just hanging around for some underlying and mysterious reason.

Here's a zoom. And now I'm showing CSR! This just keeps getting better and better.

I’ll work on that this evening.

You have centrals, Sierra. I see mine ranging from 11 seconds up to 40. 40 seems terribly long. Is that at all typical of centrals?

Thanks for the information about the spam filter and the machine advice.

I’ll ask about EPR adjustments tomorrow with the respiratory therapist.

I am a bit concerned about the positional nature of the centrals. I’ve read where it’s often about Cheyne Stokes respiration, heart failure or possibly some sort of brain stem problem. While I need to get these centrals minimized as much as possible, I’m thinking it might be equally important to try and determine the cause. It just seems odd that positional centrals would be idiopathic.

I'm not sure if these are even loading correctly as I can't see them when I sign off. Anyway, my AHI seems ok at 2.17. The time in apnea might be an issue at 4+ minutes. There are leak issues with the mask it seems, though they don't seem to be impacting my AHI. In contrast to my in lab sleep study, it seems like the apap is removing most all of the hypopneas and leaving me with the centrals, which I guess is to be expected. Any thoughts?

So I tried to take a nap, lying supine, yesterday evening and had a flurry of centrals and never was able to fall asleep. Last night I chose to make every effort to stay on my side or stomach and it was a very different story. Here are some screenshots to look at. So far, it seems the machine is wiping out the hypopneas I had in my PSG, with very little pressure, and that my centrals are truly positional. I now know what is causing me to wake up feeling slightly anxious and to have a bit of trouble falling back to sleep...central apneas.

I posted some screen grabs but they aren’t appearing. Perhaps they need to be approved by a moderator first?