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Sleep Apnea
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mask type and cpap settings

Posted by selims on March 19, 2007 at 08:06:50:

Hi All,

I am new to this site (but not to apnea, I had mild apnea diagnosed about 3 years ago ... and have had it for God knows how long before that). I have a ton of questions but I will begin with a specific one.

I was a mouth-breather but then I had a rapid palatal expansion (for reasons other than apnea) and discovered I could, for the first time in my life, breathe comfortably through my nose. Following which, I switched from a full-face mask to a nasal mask (ultra mirage). However, the settings were not changed on my machine (Resmed Autoset Respond). Last week, I was naughty and found how to view the Admin Settings on this machine on another site (which was when I discovered the incorrect setting). I found that the machine was set for a full-face mask, even though I have not used a full-face mask for over 6 months. In those 6 months I found that I would wake with uncomfortably high pressure in my mask and would have to turn the machine on and off (this happened frequently, and has not happened in the last week). Also, when I woke the pressure reading was usually around 10, whereas since I changed the setting to nasal mask (the setting is "ultra" on the machine) the pressure is about 5.

My question is, does the mask setting affect the pressure levels? Or is my experience just an anomoly? And if so, isn't that the point of apnea treatment (to get the pressures correct .. I read somewhere that incorrect (high) pressure can lead to central apnea)? Any advice would be very appreciated.

Selims

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