yes poor doctors and DME have to eat just everyone else
if EPR have any effect ... it would not be called comfort feature
some newbies reported EPR have an effect on AHI numbers but maybe co-incidental as it get better as their sleep quality improve
for folk who find hard to exhale against pressure or have problems with swallowing air (aerophagia) ... EPR can be useful
PRS1 machines have a Flex demo, you can test each setting and see which one you like best or none
I started out with the RemStar Plus (brick blower) , and ended up around 16-17cm.
Constant blower speed means pressure soars +2-3cm with each exhalation then drops another 2-3cm on inhale. I saw this happening with a manometer inline.
It took a while each night to aclimate to breathing against that back pressure. The harder you try to exhale the higher the pressure you have to exhale against.
Since I switched to the S9 Autoset, it applies *regulated* pressure so it's a lot easier to work with. The S9 also runs at a lower average pressure so I have almost no aerophagia issues now.
"With ordinary talent and extraordinary perseverance, all things are attainable." - Thomas Foxwell Buxton
I was going to do a test with EPR off but am experiencing some wonkiness lately. As soon as it is over, I'll give it a try.
EPR promotes compliance. Since they are all about that term, I'm surprised they care. And since they keep okaying bricks, how the hell do they even know if it helps or hurts?!?!
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A very good point, Paula. In light of what Dr. Wilorg wrote in response, I am planning to turn mine off and see if anything else changes as a result.
Since this script-for-EPR thing is new (at least in my area), it makes me think that the docs recently concluded that EPR negatively affects AHI readings. Otherwise, they would have nixed it from the get-go. Up until and including my most recent doctor visit not too many months ago, EPR was just a personal, comfort decision, which as Paula pointed out, has compliance implications.
Enough people on the boards have reported EPR affects their AHI numbers that you can't dismiss it as purely a comfort feature. This includes people who have got enough posting history that you can tell they have an idea what they're talking about.
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If it's midnight and a DME tells you it's dark outside, go and check it yourself.