+- Apnea Board Forum - CPAP | Sleep Apnea (https://www.apneaboard.com/forums)
+-- Forum: Public Area (https://www.apneaboard.com/forums/Forum-Public-Area)
+--- Forum: Main Apnea Board Forum (https://www.apneaboard.com/forums/Forum-Main-Apnea-Board-Forum)
+--- Thread: Got Sleep Study Results (/Thread-Got-Sleep-Study-Results)
Got Sleep Study Results - KCFLY - 04-16-2018
Well, as some of you may remember, I have been dealing with central apneas since around the first of the year. I asked my doc for a new sleep study to see what was causing the centrals. I had the study on 3/28 and finally got the results today.
Total Sleep 475 min
Sleep latency 14.5 min
REM sleep 101.5
They started with fixed pressure CPAP and worked up and through BiPAP.
The results basically say my centrals are pressure induced and I need to keep my cpap pressure at 8 or lower as anything above that brings on the centrals.
Of course in the past, I would start having OSA at pressures below 10 or so. They didn't see any apneas (of any kind) during the study at a pressure of 8.
They did state that BiPAP failed in controlling the centrals.
So, for now, I will set my machine at a fixed pressure of 8 and hope the OSA's don't come back and the centrals stay away.
Thanks to everyone for their input and suggestions over the past month or two.
RE: Got Sleep Study Results - Hojo - 04-16-2018
Refresh my memory, did you try a cervical collar to help prevent OA events?
RE: Got Sleep Study Results - KCFLY - 04-16-2018
I did not.
Once I settled into the settings listed in my profile I had an average AHI of less than 1 for about 8 months. So, no need for the collar.
It was around the first of the year I started seeing clusters of central apnea events raising my average AHI to around 10, with nights approaching 20. Even during this my obstructive events were still very low.
The sleep study was primarily to document the centrals with the hope of figuring out a good solution to treat them. The suggestion to use a fixed setting of 8 to control the centrals may help that, but I am concerned the Obstructive apneas will return. We shall see.
RE: Got Sleep Study Results - PaulaO2 - 04-16-2018
What you can do is start at 8 for a week or more then go up to 8.5. Then sit there for several weeks then go up to 9. Etc etc.
The trick is to find that sweet spot where your OSA is kinda controlled (aim for less than 5, no need to aim for even less just yet) yet not so high the CSA starts. Then keep it there for a long while (coupla months) then increase again.
RE: Got Sleep Study Results - Sleeprider - 04-16-2018
Gee whiz, I missed it by 1-cm. On March 3 I predicted your results, but said they would recommend CPAP pressure at 7.0 http://www.apneaboard.com/forums/Thread-Hello-to-everyone-question-on-machine-type?pid=194553#pid194553
Ya think we could have saved some money and time? Probably not...your results have had a tendency to change a lot night-to-night. This new titration will work for a while, and eventually the inconsistent results may resurface. We noted a change in your therapy results seemed to coincide with medication you're taking, and have even recommended this same 8-cm pressure before, and eventually just resigned ourselves to trying variable auto pressure again. So We have been down this road before.
http://www.apneaboard.com/forums/Thread-Numbers-getting-worse-any-advice-would-be-appreciated?pid=242926#pid242926
http://www.apneaboard.com/forums/Thread-Numbers-getting-worse-any-advice-would-be-appreciated?pid=242963#pid242963
I think you have done the right things in touching back with the doctor. The Bilevel titration is now documented as failed, and if in the long-term the new CPAP pressure also fails your next stop may be ASV. It's going to take some time for everyone else to catch on, but your results (like most with complex apnea) are consistently inconsistent. Be sure to retain copies of the studies.
RE: Got Sleep Study Results - KCFLY - 04-16-2018
Sleeprider,
Yes, it does feel like this is more of the same in many ways. However, the insurance game will at some point require the data I now have to move forward if ASV is in my future.
At least its documented.
I have copies of both sleep studies, no worries there. I learned a long time ago to ask for copies of everything!
I'll try their recommendation until I settle in to a new pattern of blissful, restful sleep, or it all comes crashing down and I have to do something else. It sucks, but it is what it is.
I'm just glad to have this step complete and am taking this as one more positive step towards getting this under control and getting a restful night of sleep.
I'll give it a week or so and post some charts unless someone wants to see something sooner.
RE: Got Sleep Study Results - SarcasticDave94 - 04-16-2018
Interested to hear your weekly report next week. Hope this recent activity brings you closer to successful therapy.