sleepycyclist wrote:Hello,
I've found this forum to be a great help to me in discovering and starting to treat my UARS. I'll start with an overview of my story because I found it helpful to read about others experiences. I'm 26 years old, 6'00" 155 lbs. Discovering that my proplem was breathing related was a long journey. I had my first sleep study done at national jewish hospital in denver when I was 20 years old. The report indicated I didn't have sleep apnea or rls and my doc concluded it must be physcological. I was put on sleep meds including ambien and lunesta and zoloft for depression. I few years ago I moved to the mountains and realized in the heart of the winter my symptoms would almost go away only to return with a vengence in the spring. This is what propted me to look into UARS which I was diagnosed with just a couple months ago.
A sleep study indicated my RDI was 22.3 events per hour. I also didn't respond well to Bipap (central apneas) so I was put on a resmed vpap adapt. I've been on the machine now for 24 days and I can't seem to wear it for more than 5 hours. I wake up after about 4 hours typically and the pressure seems like its a lot to handle (max 12, epap , and I never can seem to go back to sleep. My machine also doesn't have a ramp feature which I feel would help a lot. Is this normal for people in the beginnig of therapy? How long does it typically take to adjust to sleeping 8 hours with a cpap? Any tips or suggestions would be greatly appreciated. Thank you.
First, welcome to the forum, sleepycyclist. I recommend that you register as a user and register your equipment. Here are some instructions on registering your equipment:
wiki/index.php/Registering_Equipment_in_User_Profile
Second, you will probably want to become familiar with Central
Sleep Apnea. Rested Gal maintains a list of "Links to Central Apnea" discussion, which has a LOT of background information:
viewtopic.php?p=22702
Third, please understand that your VPAP Adapt (I assume an S9 unit) is a LOT different than a BiPAP unit. As I noted in the previous post, this is an ASV unit. That is, it is an Adaptive Servo-Ventilator. When you have a central apnea - simply fail to breathe - your unit shifts into ventilator mode and helps sustain your breathing. At this point, it ramps the pressure WAY up. Your specific unit has a maximum pressure of 25cm H2O. That is a lot higher than most CPAP and BiPAP units. It is also what is needed to help you breathe when your body fails to do so.
As I noted, an ASV unit is a lot different than a CPAP or BiPAP unit. You have a LOT more settings on your unit. It would be a good idea to request your prescription for your unit. It can help if you travel - I keep mine in my ASV case when I travel. That way, if anyone asks, the prescription (often written as a Letter of Medical Necessity) is right there. I never get any hassle about it, since CPAPs are so common these days.
Oh, since it is so different, in the future, you might want to add "ASV" into the subject of the post. Those of us with ASV units will then quickly chime in and see what we can do to help.
Now onto your specific questions:
sleepycyclist wrote:... I wake up after about 4 hours typically and the pressure seems like its a lot to handle (max 12, epap , and I never can seem to go back to sleep. ...
Sounds as if your central
sleep apnea starts to surface during deep
sleep. You would start to reach and stay in deep
sleep after a few hours of
sleep. This is actually pretty normal. For example, I tend to have more central apneas during Non-REM
sleep than during REM
sleep. During lighter levels of
sleep and during REM
sleep there is more brain activity that helps reinforce normal breathing. During very deep
sleep the brain activity decreases, and the tendency to have central apneas increases.
If you have problems with getting to
sleep after one of these events, you might want to chat with your doctor about it. A fast acting
sleep agent (Lunesta, Ambien, etc) might help.
Or you might get up, read a little and then see if you can go back to
sleep. Often getting away from it a bit helps. The idea that we should
sleep 8 hours through the night is actually a very modern (post industrial revolution) idea. Prior to that it was not unusual to have an early session of
sleep and then a second (or third) session of
sleep. See the
Segmented Sleep article in Wikipedia.
sleepycyclist wrote:... My machine also doesn't have a ramp feature which I feel would help a lot. ...
Nope. That's because a lot of folks with central apneas stop breathing as they fall asleep. The ramp feature would not be able to sustain their breathing should they fail to breathe as they fall asleep. By the way, that is very normal. Anytime we fall asleep, our bodies shift from one method of regulating and controlling breathing to another. During this transition to and from
sleep we often have central apneas. These are normally discounted during
sleep studies - unless they are VERY long in duration. Prior to being put on an ASV unit, I would stop breathing so long that the "Auto OFF" feature of my BiPAP would activate. That is, I would stop breathing for more than a minute at a time. Not good.
So, for those of us with ASV units, a ramp feature is simply not an option. Sorry.
sleepycyclist wrote:... Is this normal for people in the beginnig of therapy? How long does it typically take to adjust to sleeping 8 hours with a cpap? Any tips or suggestions would be greatly appreciated. ...
At the beginning of CPAP or BiPAP therapy no. But you have an ASV unit. And I fear it is pretty normal for someone with an ASV unit. Some of us never get to
sleep the full 8 hours through the night. I rarely do. Sometimes, but maybe only once a week or less. But I am DEFINITELY doing much better than I was prior to ASV therapy.
Depending on the type of mask that you have, you might want to investigate a mask liner. That will help quiet the mask when the pressure gets really high. You can find some at:
http://www.remzzzs.com/Default.asp
http://quietusliners.com/
http://padacheek.com/PAC_Maskliners.html
You may also find that a full face mask is needed at the high pressures. (Or you might have one already ... that's why we need you to register and register your equipment).
Hope that helps.