Resmed Autoset

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Sleepy Bubba
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Resmed Autoset

Post by Sleepy Bubba » Wed Jan 28, 2015 5:57 am

I have been using my machine now since January 1st, and I have made some changes to it.......I lowered the temperature in my tube, and reduced the humidity. I also changed the setting from CPAP to Autoset............I was having 9 events per hour with the thing on CPAP, and read about the Autoset function adjusting pressure when it senses an event..........Since I changed it, from the first night, I have had less than 5 every night (it has been 4 nights) and typically around 3.6. BAsed on what I am reading that is pretty good, though not spectacular. Why would they have given me the machine with the thing set up in CPAP mode?

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Sheriff Buford
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Re: Resmed Autoset

Post by Sheriff Buford » Wed Jan 28, 2015 6:06 am

Probably because maybe that's what the doctor ordered OR the DME didn't bother to check. Do you know what your prescription says? You may need to tweak the settings in the autoset mode (providing the autoset mode is the mode you prefer). What is your pressure setting in the cpap mode?

Sheriff

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Sleepy Bubba
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Re: Resmed Autoset

Post by Sleepy Bubba » Wed Jan 28, 2015 6:09 am

9. It just seems like if the machine has this sort of ability, why wouldn't that be the default setting. Should I be happy with an AHI under 5, or should I be looking to get it really low?

herefishy
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Re: Resmed Autoset

Post by herefishy » Wed Jan 28, 2015 8:09 am

Until you have done the therapy for long enough to know how you feel with it higher or lower, which can take a while, the only thing you can go by is your stats, and the AHI under 5 is a good one to go by. Later you can start "tweaking" it and have an idea the next day whether your tweak was good or bad.

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chunkyfrog
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Re: Resmed Autoset

Post by chunkyfrog » Wed Jan 28, 2015 8:19 am

Factory default on these machines is auto 4-20. Yours was set in cpap mode on a single pressure.
These are the extremes possible with your machine, but there are a gazillion settings in between.
You now get to be Goldilocks and find YOUR best setting.
Here is where the data is important; you want a nice low AHI, without increasing open air apneas (centrals)
but nice numbers need to balance with good sleep.
I like a tighter range (see my comments) , but zero AHI is not the goal, a restful night is.

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Sleepy Bubba
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Re: Resmed Autoset

Post by Sleepy Bubba » Wed Jan 28, 2015 8:33 am

OK, I really feel like it is making a difference with me, I'm not sleepy at 2 in the afternoon anymore, and seem to be more ambitious. Been scoring very high on the MyAir (I think that is more of a encouragement tool than anything, however), but having relatively low AHI numbers has been encouraging. While the hose is a bit of a pain, I guess I will get used to moving it with me in the night. Have a drs apptmnt mid Feb, will see what he has to say. Probably will leave it right where it is for now, on Auto with the factory settings pressure wise.

Thanks

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sleep_quest
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Re: Resmed Autoset

Post by sleep_quest » Wed Jan 28, 2015 2:10 pm

Sleepy Bubba wrote:While the hose is a bit of a pain, I guess I will get used to moving it with me in the night.
Take a look at this thread and PM me if you would like me to send you one. It might help

viewtopic/t103448/viewtopic.php?f=1&t=1 ... 44#p963444

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Wulfman...
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Re: Resmed Autoset

Post by Wulfman... » Wed Jan 28, 2015 3:56 pm

Sleepy Bubba wrote:I have been using my machine now since January 1st, and I have made some changes to it.......I lowered the temperature in my tube, and reduced the humidity. I also changed the setting from CPAP to Autoset............I was having 9 events per hour with the thing on CPAP, and read about the Autoset function adjusting pressure when it senses an event..........Since I changed it, from the first night, I have had less than 5 every night (it has been 4 nights) and typically around 3.6. BAsed on what I am reading that is pretty good, though not spectacular. Why would they have given me the machine with the thing set up in CPAP mode?
Because they (apparently) determined in your sleep study (titration.....if you had one) that a pressure of 9 cm. should take care of most of your events. Unfortunately, the sleep labs aren't like sleeping in one's own bed and things can be different at home. You probably should have bumped your pressure up a centimeter or two to see if that lowered your AHI.
Many people have experienced sleep disturbances by using ranges of pressure in Auto mode and maybe that's another reason why it was set to single pressure. The machines use sensors and programs to interpret your breathing. If they encounter something like a snore or flow limitation, the program tells the machine to increase pressure. If you're in a deep sleep stage or REM, you may be bumped out of that needed sleep stage and into a lighter one and you may end up feeling like you're not rested. It can also end up in a "self-feeding" frenzy in that as the pressures increase, you may subconsciously have additional flow limitations (you may have a reflex reaction to the pressure increases) and it keeps bumping the pressure in a "runaway".......until the pressure blows your mask off and you wake up (if you haven't woken up prior to that).

So, while I'm all for a person having an APAP, they need to be aware of some of the pitfalls of using them in ranges of pressure. It's often recommended that a tight range of pressures is preferable to a wider or wide-open range......if the user is going to use a range.


Den

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englandsf
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Re: Resmed Autoset

Post by englandsf » Wed Jan 28, 2015 4:04 pm

Dumb question - if the lower APAP setting is well adjusted, what's the downside of leaving the upper pressure at 20?

I run at 11-20 and rarely get over 15 - except for a few times a month when I get up to near 17. AHI at 1 summer, 2-3 winter.

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Wulfman...
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Re: Resmed Autoset

Post by Wulfman... » Wed Jan 28, 2015 4:10 pm

englandsf wrote:Dumb question - if the lower APAP setting is well adjusted, what's the downside of leaving the upper pressure at 20?

I run at 11-20 and rarely get over 15 - except for a few times a month when I get up to near 17. AHI at 1 summer, 2-3 winter.
It depends on the breathing patterns/characteristics of the person. Some people just have many Flow Limitations and/or Snores that don't precede apneas. With that scenario, you can get runaway pressure increases. Some people have apneas without preceding events (sometimes called "frank" apneas) which are going to occur anyway regardless of the pressure ranges or settings.

So, some people can get away with it and some people can't.


Den

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englandsf
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Re: Resmed Autoset

Post by englandsf » Wed Jan 28, 2015 5:14 pm

Guess I have "simple" OSA with no centrals so I'm OK. The pressure spikes above 15 don't seem to wake me so I'm good. Love my P10

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TangledHose
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Re: Resmed Autoset

Post by TangledHose » Wed Jan 28, 2015 5:28 pm

Wulfman... wrote:sometimes called "frank" apneas

.

OK, I gotta ask: who is this Frank guy?



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Wulfman...
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Re: Resmed Autoset

Post by Wulfman... » Wed Jan 28, 2015 6:02 pm

TangledHose wrote:
Wulfman... wrote:sometimes called "frank" apneas

.

OK, I gotta ask: who is this Frank guy?

Darned if I know, but he's been spoken of very often.

I always try to supply sources of reading material whenever possible.

Den

.

Forum Search:

viewtopic/t103448/search.php?keywords=frank+apneas

viewtopic/t35348/Frank-Apnea.html

viewtopic/t103448/viewtopic.php?f=1&t=8 ... eas#p70811

viewtopic/t103448/viewtopic.php?f=1&t=1 ... eas#p91113


If the references in the forum threads isn't enough, try a Google search of "frank apnea".

https://www.google.com/search?q=%22fran ... 8&oe=utf-8

http://www.journalsleep.org/Articles/240809.pdf

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palerider
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Re: Resmed Autoset

Post by palerider » Wed Jan 28, 2015 7:55 pm

TangledHose wrote:
Wulfman... wrote:sometimes called "frank" apneas
OK, I gotta ask: who is this Frank guy?
it's a misuse of a term, by definition, "frank" in medical parlance means "obvious" ... here it's being misused as "sudden, unexpected".

quoting definitions:
Medicine
unmistakable; obvious.
"frank ulceration"

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Wulfman...
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Re: Resmed Autoset

Post by Wulfman... » Wed Jan 28, 2015 8:32 pm

palerider wrote:
TangledHose wrote:
Wulfman... wrote:sometimes called "frank" apneas
OK, I gotta ask: who is this Frank guy?
it's a misuse of a term, by definition, "frank" in medical parlance means "obvious" ... here it's being misused as "sudden, unexpected".

quoting definitions:
Medicine
unmistakable; obvious.
"frank ulceration"
Not necessarily. And, I don't see the difference in your trying to split hairs. From the discussions on the forum and the definitions, a "frank" apnea is an "abrupt" (fully developed, clinically evident, obvious and unmistakable) apnea without preceding snores, flow limitations or other events that the manufacturers use in their programming to "predict" an apnea that may sneak into the chain of breathing events. By definition, an apnea is "lack of breath" for 10 seconds or more.

1: marked by free, forthright, and sincere expression <a frank reply>
2a : unmistakably evident <frank materialism>
2b : clinically evident and unmistakable <frank pus>


Den

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(5) REMstar Autos w/C-Flex & (6) REMstar Pro 2 CPAPs w/C-Flex - Pressure Setting = 14 cm.
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