I was titrated at 9cm also but only for about 2 hours worth the first time around so it was kind of a guess type of thing.
Like you, my OSA goes up and the hyponeas go down after 8cm.
When you say 8-10 do you mean a lower AHI or a higher AHI. I would think if your right around the 9cm range your AHI would go lower??
Marc
[quote="roztom"]When I look at the data it seems anything other than 9cm messes my AHI up. 9 cm is such a narrow pressure - coincidently that is where I was titrated !!
What happens to me is my Hypopneas go down above 9 but my OSA goes up !! The lowest combined AHI is 9 on the button.
It looks like I should be CPAP at 9. When you look at my numbers you can see even a narrow range 8-10 would probably give me a higher AHI.
Tom
Can less pressure be better???
Sorry I wasn't clear.
What I meant was a 9cm I have the best AHI.
Even if I set the APAP for a narrow range of 8 - 10 it wouldn't be as good as a straight 9cm based on my numbers.
What is the weirdest is my Snores are the highest at 9cm which is what triggers the pressure increases but my Flow Limitation is the lowest at 9cm.
Totally opposite of what I'd expect.
Tom
What I meant was a 9cm I have the best AHI.
Even if I set the APAP for a narrow range of 8 - 10 it wouldn't be as good as a straight 9cm based on my numbers.
What is the weirdest is my Snores are the highest at 9cm which is what triggers the pressure increases but my Flow Limitation is the lowest at 9cm.
Totally opposite of what I'd expect.
Tom
"Nothing To It, But To Do It"
Un-treated REM AHI: 71.7
Almost All Hypopneas
OXY Desat: 83.9%
Trying To Get It Right
Un-treated REM AHI: 71.7
Almost All Hypopneas
OXY Desat: 83.9%
Trying To Get It Right
Assuming you can handle the pressure it would be interesting to see what the graphs would look like if you set it to 8-10 for a few days.
I am just the opposite as my snore index is the lowest at 8 which is the best AHI and then the snore index rapidly goes up after that.
I still think an auto set for a narrow range is a much better idea than one number. What I have found over the last 4 months is there is no good single number that covers every night. It would be nice if that was the case but no dice...
I have 50 pounds to lose (250 to 200 on a 6 ft 1 inch frame) and I wonder if the doctor would be correct in that I may not even need this machine at 200 since my numbers are around the 8 to 9 cm range. I guess time will tell. The two nights I didn't use it because of a sinus thing I almost missed the machine noise and the mask. I think I need my head looked at...lol
Marc
[quote="roztom"]Sorry I wasn't clear.
What I meant was a 9cm I have the best AHI.
Even if I set the APAP for a narrow range of 8 - 10 it wouldn't be as good as a straight 9cm based on my numbers.
What is the weirdest is my Snores are the highest at 9cm which is what triggers the pressure increases but my Flow Limitation is the lowest at 9cm.
Totally opposite of what I'd expect.
Tom
I am just the opposite as my snore index is the lowest at 8 which is the best AHI and then the snore index rapidly goes up after that.
I still think an auto set for a narrow range is a much better idea than one number. What I have found over the last 4 months is there is no good single number that covers every night. It would be nice if that was the case but no dice...
I have 50 pounds to lose (250 to 200 on a 6 ft 1 inch frame) and I wonder if the doctor would be correct in that I may not even need this machine at 200 since my numbers are around the 8 to 9 cm range. I guess time will tell. The two nights I didn't use it because of a sinus thing I almost missed the machine noise and the mask. I think I need my head looked at...lol
Marc
[quote="roztom"]Sorry I wasn't clear.
What I meant was a 9cm I have the best AHI.
Even if I set the APAP for a narrow range of 8 - 10 it wouldn't be as good as a straight 9cm based on my numbers.
What is the weirdest is my Snores are the highest at 9cm which is what triggers the pressure increases but my Flow Limitation is the lowest at 9cm.
Totally opposite of what I'd expect.
Tom