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Re: Optimum pressure caveats, indeed!!

Posted by - Sleepy Coote on February 12, 2003 at 18:02:38:

In Reply to: Re: Optimum pressure caveats, indeed!! posted by Rebecca on February 12, 2003 at 16:55:08:

Hi Rebecca. Experimentally running an auto-Pap min pressure of 9 for one night left me with an AHI of greater than 5. Now bear in mind that untreated my AHI only measures 16.2 in the lab (all hypopneas, low-to-mid 80% desaturations, and severe daytime OSA symptoms). I really do think I am a strange case.

10 cm pressure sure does seem like an awful lot of full-time, constant air to throw down the throat of someone with infrequent and partial closures. That's why I think your guess of the hering-breur reflex is a really, REALLY good guess! When I need the air, I need 10 cm to adequately stint my airway open. Yet I spend the majority of time not needing that much pressure but still getting it.

Auto-titration keeps my mean pressure way down there. I'm lucky enough to be properly detected by my auto-Pap: I typically get 7-10 cm whenever I need it, but ONLY when I need it. I suspect this auto-titration method of delivering air only on an as-needed basis is helping me significantly.
No centrals reported with my min set at 9 cm, however! So I really am curious to see what the data will look like at fixed 10 cm.

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