RE: Am I having centrals?
(07-22-2013, 08:39 PM)Paptillian Wrote: (07-22-2013, 08:34 PM)DreamDiver Wrote: I spelled a bunch of stuff wrong.
I hadn't even noticed but I should be more careful myself. I tend to reserve proper grammar and spelling for work and assignments. It all goes to hell when I'm on the internet! 
A parent Lee, spell Czech and Otto correct doesn't all ways work rite when theirs know misspelled words.
SuperSleeper
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RE: Am I having centrals?
Thanks tfm0891!
(07-24-2013, 09:24 AM)tfm0891 Wrote: What you are seeing are more than likely post arousal centrals. This happens sometimes after the brain wakes up for a short moment and you begin to fall back to sleep....COMPLETELY NORMAL!! However.....true centrals have to have a complete cessation of breathing AND. A complete cessation of effort in the abdomen and thorax.....which you can not tell at home if you do not have respiratory belts on. Sometimes our body has to take time to adjust to CPAP, BIPAP AND ASV. It should subside. If it doesn't my only concern would be if your oxygen levels were going down at the same time that these are occurring.
RE: Am I having centrals?
Thanks for this very helpful thread. Really informative. Going into night 4 with my S9 Autoset and CAs are quite high but Apnea and Hypopnea rates are very low. I too had low-to-no Centrals in my sleep study, so am encouraged by your voices of experience.
RE: Am I having centrals?
(08-05-2013, 12:55 AM)1210donna Wrote: apparently things like a yawn in one's sleep can register as a central or simply not breathing whilst rolling over.
Assuming you have a nasal mask (or pillows), a yawn will register as an obstructive apnea event. Typically, you will have closed off the air passage going from your mouth to your nose in order to properly yawn. Hence, an obstructed airway event.
Purposely not breathing while rolling over will probably register as a clear airway apnea event. It _is_ an apnea event, indistinguishable from a central apnea event. You are simply not attempting to breathe. However, rather than your brain having forgotten to breathe, as is the case in a true central apnea event, you are intentionally overriding the automatic breathing reflex and purposely stopping breathing as you roll over. But the machine cannot tell the difference, because it doesn't know that you are awake and intentionally controlling your breathing.
Neither one counts when evaluating your "true" AHI value. Those only count involuntary events when you are asleep.
