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APAP Remains at Highest Setting

Posted by todd on August 28, 2007 at 13:53:42:

I'm hoping that I can make this post clearer than I made it below....

With my current APAP (a Remstar M-Series with A-Flex), I notice that I'm often awakened during the night with the pressure maxed at 11 (my range is set to 6-11, and my recommended titration was 9) and it remains there even after I'm awake and breathing on my own. I had experienced this even with my previous APAP (a Puritan Bennett 420E) but it only happened when my pressure sensing hose was leaking/not connected well which would happen sometimes after several connect/disconnections or when it started malfunctioning. The PB machine, when working properly, if I woke up normally and was breathing on my own, the machine would sense I'm breathing on my own and lower the pressure to the minimum.

This APAP doesn't do that. In fact, I can lie there for several minutes breathing on my own (which obviously means I have no apneas) and the pressure remains at the max.

It seems as if the machine has an increase in pressure (due to AHI perhaps?) but never decreases the pressure. I would've thought that the machine would try to decrease the pressure at some point to see if the apneas had subsided and I could get by with less pressure?

Can anyone explain this? Does "auto" mean only "auto up"?

Thanks!!

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