robysue wrote:[*]The long term leak data is missing[/list]
No, it's not. It's all there, it's just too low for you to make out. Since I switched to the Airfit P10, my average 95% leak rate has been 0.46 L/min.
In particular, on both days, the 7:00-7:30 time frame has a lot going on, but if you were dozing lightly, that may just be sleep/wake/junk breathing patterns being mis-scored.
My wife gets between 7:00 and 7:15 and is getting ready for work. It is entirely likely that I am having arousals during that time frame.
1) I would look at the median pressure on the detailed data instead of the weighted average pressure. My guess is that your median pressure is also up around 13 or 14. The median pressure is easier to understand than the average pressure. If your median pressure is 13.5, that means that the pressure is AT or BELOW 13.5 for 50% of the night and it is also AT or ABOVE 13.5 for 50% of the night.
My median pressure at my current setting is 13.81.
2) With the current minimum pressure of 12 cm AND the tendency of the CAs to pop up on some nights, I'd be reluctant to increase the minimum pressure without the advice of a sleep doc.
Fortunately, I have an appointment with my sleep doc tomorrow. Still, I don't think an increase in maximum pressure is what I need. I suspect that an increase in minimum is what I actually need, actually. Do you think turning of EPR might help?
3) Given that the number of OAs went down after the pressure increase, but that the number of CAs seems to have gone up, I'd consider lowering the max pressure just a smidgeon, but keeping the min pressure at 12. In other words, it's worth gathering a week or two of data with the narrow APAP pressure range of 12-14 or 12-15. If the OAs stay under control and the CAs go down, you'll have your solution. If the number of OAs goes up and the number of CAs does not go down, you'll know that you really do need to involve your sleep doc in figuring out a sweet spot to balance out controlling the OAs without triggering an excessive number of CAs.
This seems like good advice. I will talk to my sleep doc about it tomorrow. Would it be better to decrease slowly -- say in 0.2 cm increments -- giving it time to stabilize between each change?
igdoc wrote:Agree with Robysue's excellent analysis (as always). There are clusters of central events here which are likely to represent central periodic breathing. If you could zoom in on the flow rate graph of Monday 21st between 3.35 and 3.50 we could be more certain.
If you'd like a more detailed zoom of any section, please let me know. I would note that this is not the best example of periodic breathing in my dataset -- I have some that almost look like classic cheyne-stokes respiration, though never for too long.
Try this for a few days and then I would suggest lowering your EPR setting from 2 to 1 or preferably 0 if it is not too uncomfortable for you.
EPR is at 1 and has been for quite some time. There is an issue with the beta of SleepyHead that causes it to display EPR:2 no matter what the actual level is. The EPR_LEVEL:1 figure is the correct one. That said, I have been considering lowering the EPR, and will suggest it to my doctor tomorrow. Fortunately, I have very little problem tolerating pretty much any pressure that's been thrown at me so far; I don't anticipate a problem with EPR=0.