(12-13-2014, 07:06 PM)mergx Wrote:

(12-13-2014, 03:37 AM)vsheline Wrote: Yes. As you have found, there is no way to manually control the backup respiration rate, but the machine usually will synchronize itself to our recent natural breathing rate.

It seems to not be synchronizing. If I let my breathing just do it's own thing, then it's not long before the S9 is delivering air to me even though I'm still breathing and definitely not having an apnea (I'm awake, after all). If I try to keep breathing naturally in hopes of getting it to fall into line with me, it never does, and the increased pressure keeps me awake. I can keep it from increasing the pressure by breathing faster, trying to keep ahead of the device, and then it never delivers me extra pressure, but doing that also keeps me awake.

I had the impression that the ASV part would have the machine sync to me unless I actually stopped breathing for a while, though I don't know how long that is, but it doesn't seem to be syncing. I also seem to be swallowing enough air to keep me belching and farting and to give me cramps occasionally. Eventually I give up and take it off, which at least lets me get some sleep even though I may be having apneas.

Any thoughts you might have on its failure to sync with me would be appreciated.

(12-14-2014, 05:05 AM)vsheline Wrote: Hi mergx,

For what reason did you decide to shorten the Ramp time?

Did it feel like the pressure was too low during the Ramp period, so you wanted to shorten it?

During the Ramp period, does it feel like the machine is hurrying you to breathe?

(12-24-2014, 12:01 AM)mergx Wrote: I shortened the ramp time as a result of a suggestion I saw on another thread. I've got it back at 30 now and while I can sort of feel the machine doing little things to the air pressure while I'm breathing slowly, it's not bothersome and doesn't feel like it's "pressuring" me. Even after the ramp the pressure changes don't seem too bad now, either because it's adjusted to me or vice versa.

I seem to be initially falling asleep ok, and most nights I can sleep for about an hour or so and then wake up with a belly full of air. If I can belch it out and am not cramping too badly then I'll usually get back to sleep for another hour or so and wake up again the same way. Third time's not the charm, however, as after that I end up lying awake until I give up and take the mask off, after which I can usually get back to sleep. I also changed masks, from the Mirage Quattro to the Quattro FX, which doesn't push against my forehead and cause a headache from that, but which feels a little more claustrophobic at times.

I guess there's a four-hour line that's important to the insurance company, so I try to make that, but, man, it's just really unpleasant. I feel like I'm getting less and worse sleep than I was before I started using the thing and feeling bloated and uncomfortable a lot of the time to boot. More morning headaches recently, too.