Yeah, I really wish I had more confidence in the original 'sleep study', the results of which I posted earlier - repeated here ...dataq1 wrote: ↑Thu Aug 10, 2023 9:02 pmVery nice !
And in case I didn't mention it before, a graphic representation of AHI components can also be seen by selecting the "Overview Tab" on your OSCAR report.
To your question: The home PAP machines do not react to Clear Airway events. In fact, for some people, the pressure applied in reaction to obstructive and hypopnic events may, for some people, increase the frequency of clear airway events. This is called treatment-emergent CSA and seems to occur in 10-15% of the population of folks who are being treated for obstructive apnea by positive pressure CPaP/APaP. You can Google "treatment emergent CSA".
Relative to the efficacy of C/Apap with respect to treating obstructive and near obstructive events, you have to compare against your untreated values (sleep study). That is why it is so important (IMO) that your sleep study results are reliable and representative of your "normal and usual" (untreated) sleep experience.
Hope this helps.
This was based on only 1 night, with terrible sleep due to unfamiliar heavy device on my wrist / finger, and complete lack of detail! Just one big 'AHI' number, nothing about CA, OA, etc. Looking at it again, it seems they are inferring everything from just Oxygen saturation.
I suppose one could very loosely infer that, if 'total' AHI was 30.3 during the test (untreated), and now we are seeing an average of 10 CAs, that the untreated OA/UA/H number was about 20. And if the OA/UA/H number is now around 4, then we're seeing a reduction in the order of 16 for OA/UA/H due to the CPAP. But that seems like a lot of assumptions!
As an aside, what's the general consensus on devices such as Apple's iWatch, and other mainstream 'monitoring' devices? A couple of recent articles suggest they aren't too bad! https://pubmed.ncbi.nlm.nih.gov/33378539/ and https://www.sleepfoundation.org/best-sleep-trackers are two such articles.