Quick question on APAP statistics via Sleepyhead

Just looked at my data from my S9 autoset over 100 nights. Airfit p10 mask, tape on mouth.

AHI is 1.46, OA is 1.35 and HI is .10. No real leaks.

Min pressure 9.8, max is 13.78, 95% pressure is 12.06. My machine is set to range from 9.8 to 13.8.

1. Is this good enough? I still have nights where I have 10-13 OA events per night, with 2 or 3 minutes in apnea.
2. Should I try raising the top pressure, or the lower pressure, or both pressures? Since my 95% pressure is 12.06 maybe I should set a range of 11 to 15? Suggestions would be appreciated.

3. Is there any way to have Sleepyhead save individual night data from more than just the 30 nights?

Thanks a ton in advance!

To reduce OAs it's the minimum pressure that is the most critical setting UNLESS you are seeing your maximum being hit and pegged out for prolonged periods of time. So it depends on if you are hitting your max or not and if you are then for how long.

As for is this "good enough"???
How are you sleeping and feeling?
If I was sleeping good and feeling good then it would be "good enough" for me and in fact I don't ever even blink an eye at the AHI until it goes over 3.0 and even then mostly it's just a second glance to see what it is composed of.
Under 2.0 and I don't even glance at anything.

I always take into account how I feel and how I slept and don't just go by numbers of anything all by themselves.

remstarcpap wrote: ↑

Mon Aug 27, 2018 2:37 pm

....
3. Is there any way to have Sleepyhead save individual night data from more than just the 30 nights?
....

Not sure what is happening here. I’ve used SleepyHead for years, and all of my data is still in SH.

poppi2 wrote: ↑

Mon Aug 27, 2018 2:58 pm

remstarcpap wrote: ↑

Mon Aug 27, 2018 2:37 pm

....
3. Is there any way to have Sleepyhead save individual night data from more than just the 30 nights?
....

Not sure what is happening here. I’ve used SleepyHead for years, and all of my data is still in SH.

If someone is using the S9 machine there are some time limits as to how much time the data files are intact on the SD card before they get written over.
It's 7 days for the detailed data files (like the bulk of the graphs) and 30 days for some other stuff.
It's a negative part of the S9...you have to download at least once a week to keep everything intact.

Now the AirSense 10 machines...they won't start overwriting anything for at least a year so the time frame between downloads isn't so critical.

Pugsy wrote: ↑

Mon Aug 27, 2018 2:50 pm

To reduce OAs it's the minimum pressure that is the most critical setting UNLESS you are seeing your maximum being hit and pegged out for prolonged periods of time. So it depends on if you are hitting your max or not and if you are then for how long.

Not sure if I understand your point. Does that mean I should increase the minimum pressure? Most of the time my pressures are well below my max of 13.8, but once or twice a nite they ramp up close to that level, and stay elevated a bit for like 15-30 minutes. Looking at the pressures with my OA events, I do notice that before events, my pressure is often a little below 11, and would this indicate perhaps to increase the lower pressure setting?

I know I'm probably fixing what aint broke, but the fewer the OA's the better.

Yes, increase the minimum.

I am saying that IF you want to TRY to reduce the OAs the the minimum pressure is the most critical setting and where I would start IF I was going to try to reduce the OAs.
At the same time I also said that IF I was feeling good and sleeping good then I wouldn't change anything. There comes a point when more pressure doesn't always bring about the reduction in OAs that we might think it will but it hurts nothing to try.

Let me share a little story with you about what I tried some years ago. I had pretty much settled on 10 minimum and 20 max (because sometimes I would hit 16 to 18 during probable REM and the pressure changes never bothered me) and my AHI was running in the slightly less than 2.0 to slight above 2.0 average range. Sometimes I might get just barely above 1.0 and sometimes I might hit 3.0 or so.
I was sleeping good and feeling good with those results but I always had it in the back of my mind the "what if I could reduce the AHI a little more would I sleep better and feel even better"...

So I decided to experiment and see what would happen when I increased that minimum pressure.
My parameters were to increase the pressure 0.5 cm and leave it at that increase for a week...then another 0.5 cm for another week and so on.
Over 6 weeks I worked my way up to a minimum of 13 cm. You know what happened to the AHI?? It never really changed...and I didn't really notice any difference in my sleep quality or how I felt during the day.
Now this was some 8 years ago and we didn't have flow rate to evaluate and I suspect that the reason the AHI never really changed much was because what I was seeing flagged most likely was SWJ or post arousal flagged events and they weren't real.
More pressure won't fix/reduce events that aren't real.

So if you decide you do want to try a similar experiment I suggest that you take a crash course in distinguishing a real asleep event from a SWJ (sleep/wake/junk) or post arousal event because more pressure won't fix SWJ events.
Try to figure out first of all if what you are wanting to kill with more pressure can be killed with more pressure.
Go here and read and watch all the videos you you can learn how to zoom in on each flagged event and figure out if it is real or SWJ.
http://freecpapadvice.com/sleepyhead-free-software
Remember these machines can and will flag irregular awake breathing as some sort of apnea event because they only measure air flow.....they have no way to know if the irregular breathing is related to being awake or if you are asleep and they are real events.

My AHI averages 1.0 to 2.0 right now but probably 80% of those flagged events are SWJ...so my actual real AHI is much lower.
Sometimes it's easy to spot asleep vs SWJ...sometimes not but you can get close.

It's very possible that what you are seeing isn't even real and won't respond to more pressure.
Hurts nothing to experiment and educate yourself though. Back when I did my "more pressure" experiment we didn't have flow rate graphs available for figuring out awake vs asleep but I am reasonably certain that the reason my AHI didn't really change much even at 13 cm minimum was because the flagged events were probably SWJ events and no amount of pressure will reduce those events.

At the end of my experiment back then...since there was no change in anything that I could see or feel I went back to 10 cm minimum.
It's a lot more comfortable to me than 13 cm.