Airsense 10 Upgrade for Detecting RERAs

[ChicagoGranny]

I just wanted to get as much background as possible leading up to this to help me better discuss the issue with him.

+1

[OkyDoky]

I see now that you were on straight 7cm cpap and recently changed to APAP. It could be that a little increase in a straight pressure was what you needed.
Do you use EPR and at what setting? Looks like flow limitations are driving your pressure increases. Flow limitations are where the airway is beginning to collapse but doesn't totally. So they aren't scored as an apnea. The machines are programmed to increase pressure on flow limitations and hypopneas to prevent the obstructions.

On the night you posted your median pressure was 10.58. While your pressure did fall back to around 8 for a while, I still think that a minimum of 9 would be good to try with an eye toward lowering the maximum if you are not at the top a lot. The number of CA's are few, they are spread out through the night and not in clusters. I would just monitor them to see if they increase.

Looking at one night doesn't tell the whole story, whether it is a titration in the lab or a screen shot. That's why monitoring is important.

[schmatt]

Thanks for the help guys. I'm pretty sure all of the CAs are not real CAs. They come after some irregular breathing, which means that it is not a true CA. It is just a normal pause in breathing. But all of the hypopneas appear real. As for the OAs, some appear real and others appear like the CAs, after some irregular breathing. Here's a screen shot to show you what I mean.



Again, I was thinking the algorithm for detecting RERAs might help me see some of these arousal patterns if they were due to breathing. Maybe it won't, but was hoping to at least be able to monitor it.

My flow limitation was worse when operating with a fixed 7cm. It has improved with the APAP. I'm thinking that it is not the pressure changes that are causing my arousals. I saw exactly the same patterns on a fixed pressure. I don't recall waking at all during the night until maybe one time in the mid-morning. The leak rate is a little high, but it was because I didn't quite have the mask tight enough for the higher pressures. It was good for 7cm, but not up to 15cm. I noticed this when waking up yesterday and tightened it up some. Last night's leak rate was much better and similar to most other nights. I know 7-15cm is a large range, but just wanted to get an idea of how high it might want to go. Hopefully I'll have some better answers tomorrow. Here's a screen shot of last night's data to show the improved leak rate.