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Most of the CA I see is preceded b irregular breathing implying that you were not asleep. There are a couple of CO2 induced episodes of Central Apnea. In all nothing much to be aware of.
From the brief view, and as such inconclusive, of our SpO2 I am concerned enough to request a detailed report from your oximeter. One that includes durations at or below pressures.
Gideon - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter
(05-18-2021, 09:26 AM)Gideon Wrote: Most of the CA I see is preceded b irregular breathing implying that you were not asleep. There are a couple of CO2 induced episodes of Central Apnea. In all nothing much to be aware of.
From the brief view, and as such inconclusive, of our SpO2 I am concerned enough to request a detailed report from your oximeter. One that includes durations at or below pressures.
I was just falling asleep at that time.
It was really weird experience to be woken up by wellue ring alarm so decided to consult that. Thank you.
I don’t exactly understand what should I share concerning SpO2. I can share csv or binary file from wellue ring but what pressure do you mean? CPAP data?
If you have the Wellvue/Viatom O2 Insight Pro software (or the ViHealth app on your phone) then that report will show you the time below <90% in minutes (it would also help to include the total time of recording too).
I was in a state when you’re not aware what’s going on around and fall asleep. Then woke up do to oximeter alarm and started falling asleep again.
Each time I have been woken up by oximeter alarm so yes. I would say I was barely sleeping that time
I would say the good thing is that once you were asleep, for the rest of the night, your sats were great. I think Gideon has probably got the right idea, but I'm going to defer to him and the others on here for their feedback.
On CO2 induced Central Apnea.
All CPAPs,APAPS, BiLevels improve your breathing.
There are many factor involved in our breathing. This is the simplified version.
Surprising to me, and I'm sure to most, our drive to breathe, to actually take a breathe is not driven by our need to intake oxygen, need for oxygen makes us breathe faster, but on the need to expell CO2. There is an apneic threshold, when blood CO2 levels go below this apneic threshold a central Apnea occurs. We see this mostly on new users, and if you are among the (in)lucky few ...
Because of the vet low pressures used in our machines we breathe better, deeper, with them than without them. This results in exhaling more CO2 with your machine than without it. This gradually reduces the CO2 levels resulting in shallower breaths. Eventually the CO2 levels drop below the apneic threshold and you stop breathing, a central Apnea occurs. Now that you are not breathing CO2 levels start to rise. When you pass thru your apneic threshold going up you start to breathe, shallow at first but building untill the CO2 levels are 'high and you re flushing more CO2 from your system and the cycle repeats. This results in a waxing and waning pattern in the flow rate curve.
Gideon - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter