It would be helpful if you posted an overview which included these charts in the future so we can see what's going on.
Events
Flow rate
Pressure
Flow Limitation
Leaks
I asked for your Flow Limitation chart to be included to see if Flow Limitations were driving your pressure up. I cut and pasted your charts together so we could see.
The answer appears to be, not so much. A couple increases are driven by FL, one by hypopnea, and the rest by OA. These OA without preceding FL are interesting. How about posting a couple shots about 5 minutes in duration centered on the Flow Rate surrounding those apneas like the one at 2:30 and the one around 4:00.
flowlimit.JPG
This chart would seem to suggest a higher pressure was needed around 7:00, but the machine was limited by Pmax. In reference to our previous conversation, some people find increasing pressure and/or pressure fluctuations disturbing, which could be the driver of those CA. Again, it would be helpful to see all the charts posted together to gain better insight as to what's going on. As I said earlier, I suspect you might be awake or semi awake after 7:00 during those CA. If the Flow Rate chart were included, it might give us a clue.
