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Posted: Fri Jul 20, 2007 10:44 pm
by ozij
I had that in the beginning with a Puritan Bennet machine, at exactly that pressure range. I had software to monitor my results so I felt secure enough in tweaking the range.
Eventually we get used to breathing out against pressure - though it might take longer when your range is as wide as that - since you probably don't exprerience the top of the range too frequently.
Some of us are more sensitive to pressure variations and the pressure changes wake us up.
O.
Posted: Fri Jul 20, 2007 11:09 pm
by goose
The interesting factor to me is the time. My issues are late in the sleep cycle (assuming you are sleeping all night and the pressure is increasing in the morning).
If you look at the Encore Pro reports on my nights, my HI's are mostly in the last 2-3 hours prior to waking up (6:30 - 8:30am)....I'm now on an APAP, so I would expect to have that experience of increased pressure in the morning.....Thus far I haven't noticed, but I've been on xPAP for 7 weeks...
(My AI's are good, it's my HI's that throw the numbers into the can)
The first few times I was on my CPAP and opened my mouth it did feel like a hurricane in my head.....weird sensation.
The RT at the sleep center told me it was similar to SCUBA.......obviously she's never done SCUBA!!
Stick with it -- it's amazing how soon and how much your body and mind will get used to.....
Good luck
cheers
goose
Posted: Fri Jul 20, 2007 11:12 pm
by Snoredog
sounds like all normal stuff to me. You are more likely to experience apnea in the early morning hours, then earlier in the night, it is also where you are more likely to be in REM and be dreaming more.
Hitting the Ramp button is cool, but I would probably not start it at 4.0cm, I'd start it about 6.5cm.
Next, address WHY you are waking during that time. One of two things, your pressure is either too high or it is too low. If you increase it to 11cm and you don't wake up you found your problem. if that doesn't work then well you need to drag out your last titration and read it carefully.
Posted: Sat Jul 21, 2007 8:27 am
by socknitster
Yes, Snoredog is correct. We proportionally sleep more in REM as morning comes on. During REM you are very likely to apnea. So, that is when you will have most events and when the machine will respond by ramping up. Jen