03-11-2014, 12:39 AM
(This post was last modified: 03-11-2014, 03:54 AM by DeepBreathing.)
Olmate, the high proportion of central (clear airway) apneas is a worry. Unlike obstructive apnea (in which your airway collapses physically blocking the flow of air) central apneas are caused by your brain "forgetting" to tell you to breathe. This might be brought on by the pressure of the CPAP treatment - fairly common, and likely to resolve itself with time. OR it might be something endogenous - you have a pre-existing condition. A third option is that they are caused by pressure but don't resolve. Finally, the machine can record centrals as you transition from wakefulness to sleep and vice versa - you will see clusters at the start and end of your sleep session, which are not really too much concern.
If the centrals don't go away, you will need a different type of machine to treat them (S9 VPAP Adapt or Respironics Bipap ASV). Your standard CPAP / APAP (ie an S9 Autoset) will recognise and record centrals, but doesn't have the ability to treat them. The ASV machines will treat them, but they are way expensive - around $4,000.
Following up my earlier comments, and Zonk's suggestion, you really should have that sleep study to get a proper baseline and overall diagnosis.
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any info would be appreciated