ResMed users -- what do your flow limitations look like?

[cathyf]

I'm trying to get a feel for whether my flow limitations are average, below average or above. Other people post pictures, and their FL graphs don't seem nearly as *ahem* exciting as mine are. I set my FL graphs so that I overrode the default y-axis and it goes from -0.01 to 0.5 (the little-below-zero is so that the zero's come out from merging into the x-axis, while the .5 rather than 1 is because I only get an FL scored above .5 once in a blue moon.) It looks pretty fuzzy, with the only periods free of FLs being when I'm awake. I know that the ResMed algorithm reacts to these flow limitations with pressure changes, and my pressure goes up and down pretty actively all night. Do other people see the same sort of values?

[tan]

I have told you a few times already: yours look just horrible.

This is how they should better be:
viewtopic.php?p=967345#p967345

[SGearhart]

I'm trying to get a feel for whether my flow limitations are average, below average or above.

Mine look a lot like yours.

I have told you a few times already: yours look just horrible.

This is how they should better be:
viewtopic.php?p=967345#p967345

Based off of this graph, I should be an AM radio signal.

[palerider]

Based off of this graph, I should be an AM radio signal.

I'm getting a lot of static, could you step a couple paces to the right?

[Wulfman...]

I've tried to tell you before that with your Flow Limitations, you should not be using a range of pressures.
I suspect that by posting your reports, it's starting to finally sink in?


Den

.

[avi123]

My FL looks like this on ResScan:


ResScan checks for Flow Limitation (FL) by checking the "flatness" of the respiration waves compared to a sinusoidal curve.

Here is an example:



This is the way that ResScan assigns an FL weight level scale:

[cathyf]

I've tried to tell you before that with your Flow Limitations, you should not be using a range of pressures.
I suspect that by posting your reports, it's starting to finally sink in?

When I had constant pressure, my FLs were much more dramatic. Instead of 95% FLs in the low-mid teens, they were in the .20s. I rarely see FLs over .5 when I let the machine raise the pressure to where it wants to go (my settings are 11-20), but when I was at a constant pressure of 12 I was busting up above 1.0 every day. I can see the machine raise the pressure and it tames the FLs right back down, and when I don't let it the FLs are quite noticeably worse.






My pressures only ever go up much during the first couple of hours in the night, and with constant pressures I was getting big FLs and it was waking me up.

[Wulfman...]

At what pressure does it "tame the FLs"? Maybe you could try setting your pressure at THAT setting and see how things go.

There may be more of them, but in reality, Flow Limitations......other than triggering pressure increases in Autos......don't have that much of a detrimental effect on a person's therapy, oxygen intake or other things. They're little, tiny hypopneas and aren't counted in the AHI numbers.


Den

.

[avi123]

In 2011 i had nights with FL like this when using S9 Elite. Switching to Auto CPAP S9 Autoset, reduced it by almost half.
So the double pressures was OK in my case. I also think that the kind of mask has to do with. At that time I used F&P full face :

[tan]

I'm trying to get a feel for whether my flow limitations are average, below average or above.

Mine look a lot like yours.

I have told you a few times already: yours look just horrible.

This is how they should better be:
viewtopic.php?p=967345#p967345

Based off of this graph, I should be an AM radio signal.

Some people sleep just fine with wild FLs, others are more sensitive.

[palerider]

but in reality, Flow Limitations....don't have that much of a detrimental effect on a person's therapy, oxygen intake or other things. They're little, tiny hypopneas and aren't counted in the AHI numbers.

the people on the uars bandwagon would beg to disagree with you, if you've got a lot of FLs, then you're working harder at night to take a breath than if you've got an open airway, and they may be causing more unrest, and smaller arousals, thus disrupting restful sleep.

[tan]

but in reality, Flow Limitations....don't have that much of a detrimental effect on a person's therapy, oxygen intake or other things. They're little, tiny hypopneas and aren't counted in the AHI numbers.

the people on the uars bandwagon would beg to disagree with you, if you've got a lot of FLs, then you're working harder at night to take a breath than if you've got an open airway, and they may be causing more unrest, and smaller arousals, thus disrupting restful sleep.

(deep sigh, putting my big sword away): one can have an AHI of 10, another - AHI of 5 and RDI of 40. Now, who is feeling worse?

[squid13]

Sludge who knows what he's talking about says you should try to keep FL under .4.

[tan]

Sludge who knows what he's talking about says you should try to keep FL under .4.

he very well may be. Yet there are a few people (myself including) mentioned on several forums, who had to bring FLs significantly below 0.4 to feel better. Information is too scarce to make any conclusions, just anecdotal evidence.

[tan]

At what pressure does it "tame the FLs"? Maybe you could try setting your pressure at THAT setting and see how things go.

There may be more of them, but in reality, Flow Limitations......other than triggering pressure increases in Autos.....don't have that much of a detrimental effect on a person's therapy, oxygen intake or other things. They're little, tiny hypopneas and aren't counted in the AHI numbers.

Yes, also, sleep apnea hits only fat people, and... wait... what was it... ah, sleep apnea is a scam to help relieve you of your money.