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+--- Thread: First night with new Bipap after sleep study and 37 AHI mostly CA (/Thread-First-night-with-new-Bipap-after-sleep-study-and-37-AHI-mostly-CA)
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - SarcasticDave94 - 05-17-2024
If it needs any dialing in, it'll be pretty easy. 3 modes, up to 4 pressures.
CPAP mode straight pressure
ASV mode EPAP and PS Min-Max
ASV Auto mode EPAP Min-Max.
IPAP hiding
Probably similar to the old 9 series.
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - PandaZA - 05-18-2024
Morning, here is a screen shot with default settings from last night. 3.54 AHI and also screenshot from my first night with the same settings I used on old S9 machine 2.18 AHI
[attachment=64238]
[attachment=64239]
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - Sleeprider - 05-18-2024
We need to raise EPAP min, and be mindful of possible positional issues. For now, the only change is EPAP min 7.0. Obstructive events are in clear clusters. https://www.apneaboard.com/wiki/index.php?title=Optimizing_therapy#Positional_Apnea
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - PandaZA - 05-19-2024
I feel like it was more difficult to get through the night with these setting. See attached
[attachment=64270]
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - SarcasticDave94 - 05-19-2024
Sorry, the OSCAR chart didn't attach.
Maybe you can expand on how it was more difficult as well.
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - PandaZA - 05-19-2024
Sorry, see if attached now. I felt like there was a lot more pressure when breathing and made it more difficult for me to breath, it also felt like the pressure was pushing my mask off at times.
[attachment=64271]
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - Jay51 - 05-19-2024
With the clusters of hypopneas, a few things regarding positional apnea may help (as Sleeprider has already mentioned postional apnea). Things to try in order: lowering your pillow height. Possibly switching from back sleep to side sleeping (or trying a different sleep position). Using a soft cervical collar. Just measure from your chest (sternum) to your chin in inches and fractions of an inch.
I see a respiratory rate of around 12 median (this is the lower end of the range of normal from my research - 12 to 20 is average or so). Median tidal volume of around 440 (not bad). 12 x 440 = Not bad.
Getting the hypopneas down should help. After the hypopneas get controlled, you may be able to lower the pressure a bit.
I still had an AHI in the 20's with positional apnea untreated using my s9 Adapt ASV. It went down close to zero with a collar.
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - Sleeprider - 05-19-2024
We can drop the EPAP min back down to 5 or 6 cm. As you can see, even with higher EPAP pressure, we can't stop the positional apnea. Those clustered events will continue until you find a solution to the problem
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - SarcasticDave94 - 05-19-2024
Not trying to beat dead horses, but the Positional clusters were your enemy here.
The area around 01:25 likely where the positional restrictions began, pressure began turning up, and the leaks added in. At about 02:50 you possibly moved due to the disturbance and then it all calmed down. Until the next small bit at around 03:45-04:10. This time the leaks didn't occur nearly so bad.
Positional Apnea is a physical, external based issue, and needs to physically, externally be addressed.
RE: First night with new Bipap after sleep study and 37 AHI mostly CA - PandaZA - 05-19-2024
Ok I will reduce pressure and see how it goes and will monitor my sleep position