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New, with questions
#11
(06-27-2012, 08:24 AM)Droopy Wrote: If and Auto CPAP is designed to recognise and treat apnea, why does it still report apnea events? Shouldn't it just go ahead and treat them? What stops it being able to treat them all? (I'm talking mainly about obstructive events, not central events).

CPAP machines are great, but they are not perfect. Everyone's goal is an AHI of zero, but some never achieve it, and those who do achieve it do not do so every night. Doctors generally consider an AHI under 5.0 to be good enough.

It may take months of tweaking your machine and mask to optimize your therapy.
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#12
(06-27-2012, 10:27 AM)JJJ Wrote:
(06-27-2012, 08:24 AM)Droopy Wrote: If and Auto CPAP is designed to recognise and treat apnea, why does it still report apnea events? Shouldn't it just go ahead and treat them? What stops it being able to treat them all? (I'm talking mainly about obstructive events, not central events).

CPAP machines are great, but they are not perfect. Everyone's goal is an AHI of zero, but some never achieve it, and those who do achieve it do not do so every night. Doctors generally consider an AHI under 5.0 to be good enough.

It may take months of tweaking your machine and mask to optimize your therapy.

This, exactly. You'll never get rid of apnea events, and odds are a much higher percentage of the population has them, to some degree. Figure anyone that snores is likely having apnea events (or at least hypopneas) but not severe enough, or often enough, to cause an issue.

The big advantage of APAP over CPAP is that the machine can adjust between a minimal pressure when you *don't* need as much support, up to where it needs to be when you really need it. And the advantage of the data recording is *exactly* that - you can prove that the therapy is actually effective. Even if you're only proving it to yourself.
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#13
Hey Droopy...Too echo a bit on other posters. Probably a great portion of the population have apnea events. Many are aware of them and choose to ignore it; others are sleeping dangerously and are un-aware of apnea events happening. The possibility of a XPAP machine reducing your events to a constant (zero) is nearly impossibly. One reason is that (yes) even with your Auto machine, when an event happens it can't possibly react to it instantly. It will ramp up to the higher pressures where the event occurred, and stay there for awhile, and then when it recognizes any; and help to catch the next few (if any) but can't instantly react.
Yesterday is history; Tomorrow is a mystery; Today is a gift; Thats why its called "The Present".
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#14
Thanks to all for your responses. Looking at JudgeMental's reply:
(06-27-2012, 11:50 AM)JudgeMental Wrote: Hey Droopy...Too echo a bit on other posters. Probably a great portion of the population have apnea events. Many are aware of them and choose to ignore it; others are sleeping dangerously and are un-aware of apnea events happening. The possibility of a XPAP machine reducing your events to a constant (zero) is nearly impossibly. One reason is that (yes) even with your Auto machine, when an event happens it can't possibly react to it instantly. It will ramp up to the higher pressures where the event occurred, and stay there for awhile, and then when it recognizes any; and help to catch the next few (if any) but can't instantly react.

I guess what I'm asking is "What's the difference between an event that it does stop and one that it doesn't"

...apart from it having stopped the former, of course :-)
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#15
Welcome to the Forum!!!

According to your data acquired so far, you are doing very well.

It may take time to further acclimate yourself to CPAP life. Coffee
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#16
Hi, Droopy and welcome. I agree with JudgeMental's explanation of how an APAP machine works and its shortcoming. Re: your question, I don't believe there is any difference between an event that occurs in the presence of APAP and one that occurs without a machine. An OSA event is just that in either case. The XPAP machine works to limit their overall number and frequency. Although it's not perfect in doing this job, from what I have been reading here on the board, it's definitely superior to attempts to stop apneas via surgery.
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#17
(06-27-2012, 02:34 PM)Droopy Wrote: Thanks to all for your responses. Looking at JudgeMental's reply:
(06-27-2012, 11:50 AM)JudgeMental Wrote: Hey Droopy...Too echo a bit on other posters. Probably a great portion of the population have apnea events. Many are aware of them and choose to ignore it; others are sleeping dangerously and are un-aware of apnea events happening. The possibility of a XPAP machine reducing your events to a constant (zero) is nearly impossibly. One reason is that (yes) even with your Auto machine, when an event happens it can't possibly react to it instantly. It will ramp up to the higher pressures where the event occurred, and stay there for awhile, and then when it recognizes any; and help to catch the next few (if any) but can't instantly react.

I guess what I'm asking is "What's the difference between an event that it does stop and one that it doesn't"

...apart from it having stopped the former, of course :-)

Some events, like central apneas, can not be treated by your machine.
Those will be reported in the AHI. Hopefully, CA's will make up a very small number of your events. Otherwise, you pressures may be too high or you have some other CNS issue that needs to be looked at. Occasional otructive apneas, or hypopneas are probably found in normal individuals, less than 5 per hour. So if your machine can't react fast enough and treat every obstructive apnea, it shouldn't be a problem, provided you aren't having more than 5 per hour.

In other words, regardless, of the type of events, what matters is the frequency, duation, and severity of the events in terms of the hypoxemia that results. It is the hypoxemia that ultimately results in your feeling lousy. Not only does it cause you to feel lousy because you aren't getting enough oxygen, you are also not getting uninterupted, deep enough sleep to feel rested and refresed in the morning.
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