CPAP vs APAP settings

[KittyMom22]

I'm pretty sure all the thoughtful human beings are already taken.

[ozij]

Maybe some of them have realized the made a mistake, and escaped?

[KittyMom22]

Maybe? I would like to think I'm one of them, but then I'm biased.

I should amend that to say, "The thoughtful human beings have been taken or have given up online dating."

Because it is a strange, scary place my friends. I was very naive even in my 40s and got into some situations that could have turned out very badly. One man actually turned out to be a registered sex offender.

But that's way off topic.

[lazarus]

I'm pretty sure all the thoughtful human beings are already taken.

I'll have to think about that.

[lynninnj]

my partner is sleeping much better now that i rarely snore.

my partner snores so i sometimes sleep worse

‍♀️

[KittyMom22]

I'm pretty sure all the thoughtful human beings are already taken.

I'll have to think about that.

Lol!

[KittyMom22]

my partner is sleeping much better now that i rarely snore.

my partner snores so i sometimes sleep worse

‍♀️

I rarely snore, thankfully. my cat does, softly, which I think is freaking adorable.

[lynninnj]

my partner is sleeping much better now that i rarely snore.

my partner snores so i sometimes sleep worse

‍♀️

I rarely snore, thankfully. my cat does, softly, which I think is freaking adorable.

My partner swears that there’s no snoring on that side of the bed.

Even when I replay recordings I get denial.

[Wulfman...]

If APAP is prescribed at the start of therapy, do people usually get put on CPAP later (after a titration period) or do they stay on APAP? Or is it impossible to say?

I've always recommended that users try BOTH modes and then study the reports to find out which which mode and settings work/feel best for them. Personally, I've used both and by far prefer straight pressure at the most effective settings.

Den

.

[ozij]

If APAP is prescribed at the start of therapy, do people usually get put on CPAP later (after a titration period) or do they stay on APAP? Or is it impossible to say?

I've always recommended that users try BOTH modes and then study the reports to find out which which mode and settings work/feel best for them. Personally, I've used both and by far prefer straight pressure at the most effective settings.

Den

.

I'm with Den on that.

[lynninnj]

If APAP is prescribed at the start of therapy, do people usually get put on CPAP later (after a titration period) or do they stay on APAP? Or is it impossible to say?

I've always recommended that users try BOTH modes and then study the reports to find out which which mode and settings work/feel best for them. Personally, I've used both and by far prefer straight pressure at the most effective settings.

Den

.

I'm with Den on that.

Interesting.

So out of curiosity, what oscar data points does one use to determine their settings? Just above the median or just below the median (for a trend, not just one night)? Do you use the 95% number?

[robysue1]

If APAP is prescribed at the start of therapy, do people usually get put on CPAP later (after a titration period) or do they stay on APAP? Or is it impossible to say?

I've always recommended that users try BOTH modes and then study the reports to find out which which mode and settings work/feel best for them. Personally, I've used both and by far prefer straight pressure at the most effective settings.

Den

.

I'm with Den on that.

Interesting.

So out of curiosity, what oscar data points does one use to determine their settings? Just above the median or just below the median (for a trend, not just one night)? Do you use the 95% number?

It depends.

If you are using APAP and you've been running pretty much wide open for several days, most people are more comfortable with Min Pressure set somewhere near the median and then you want the Max Pressure to be equal to or a bit above the 95% number---if your AHI is low and you're feeling good. If the AHI remains too high, you'll likely need to increase the Min Pressure a bit more. If you're not feeling good, you have to tease out what the problem is: Feeling bad from numerous arousals caused by aerophagia requires a different fix from feeling bad because there's a lot of flow limitations going on even if the AHI is nice and low.

If you want to try straight CPAP, the usual guideline is to start with the 95% pressure number from several days of titration running in APAP. The reason you want to set Pressure to that 95% pressure number is that you are denying the machine the ability to respond to deterioration in the flow rate data; consequently you need the fixed pressure to be high enough to prevent almost all of your events without the need for additional pressure increases. That's why the 95% setting is usually chosen for the starting CPAP pressure.

Again, once you have several days of data, you can judge whether you need to make further adjustments based on what the data shows about the AHI and how you're feeling.

There are several reasons some people prefer fixed pressure. One is that if the pressure is set correctly, the machine never has to "chase" events. And because the pressure is not constantly adjusting, that can make it easier to get a good mask fit. And some people are sensitive to pressure changes and that sensitivity can lead to some unnecessary arousals. So running in straight CPAP mode means they don't wake up or arouse just because the machine decided to do its thing and change the pressures.

Hope that helps.

[lynninnj]

Thanks RS, that helps tremendously.

Not sure I am ready to test out these theories on my own at the moment.

Still recovering from since the fart debacle.