I received my Respironics Mask liners from Amazon. I put one on last night. A bit uncomfortable at first, because of the thickness of the fabric and also the size of mouth opening on the fabric, somewhat small, I thought. It touched my lips. But I could breathe OK and it didn't bother me during the night. The large leaks were however worse than ever. Practically uninterrupted from 3:30 to 6:30, some lasting 60 min, a few 30 and 40 min, for a total of 46% of sleep time. I don't know if it is because of the liners. I decreased the Ramp setting from 12 back to 10. See how it goes. I'm still not too sure how to read the Flow rate in connection with the LL. . I zoomed it max. THe AHI's are minimal, even by zooming. The Flow Rate waveform goes from +180 to - 120. I don't know what is the relevance of this amplitude.. I think these LL affect my sleep in a subtle way. I don't know if these machines go out of adjustment and need to be re-calibrated. I'll contact the sleep clinic to see if there are adjustments to be made or perhaps have the seal replaced.
Here is the graphic, if you can glean something that I don't see..
Thanks
Ittiandro
I enclose today's report again, with maximum zoom on the Flow rate graph, showing 5 secs spans. I don't know how to interpret it in reference to the Large Leaks and possible hidden AHI's , if any. For one thing, I see no additional AHI events under the LL sections or anywhere in the event flag graph, even with max zoom. . Does this mean that there are no hidden AHI's ? Where would these hidden AHI's show at max Zoom level, if any?
Regarding the LL issue, I conducted a retroactive search since I began the therapy in June 2020. It appears that these LL started cropping in mid June 2021, intermittently at first and then picking up in number and duration. I never tried other masks, but I can only breathe through the mouth, due to a almost permanently blocked nose and polyps on the throat., so I cannot use either pillows or the other masks you suggested. My doctor knows that I cannot breathe through the nose, but the therapy has been so far successful, unless the large leaks issue has a negative bearing if it continues. I'll see how it goes with the liners. If worse comes to worse, I'll have to replace the silicon seal.
Thanks
The LL seem to be ongoing I ordered mask liners from Amazon, hoping they will fix the problem. Last night’s report, too, shows them at 30% above the red mark, with only 0.67 AHI’s, but none in the LL area. I don’t know if they are hidden, which would make the report inaccurate.
The LL statistics are: Min. 0.00, Median 6.0, 95%= 38.4, Max 51.6
Flow limit : min 0.00, Med. 0.00, 95% 0.12, max 0.69
I increased the Ramp Start . Now on the machine display, the Start Pressure is 12 , with Ramp time =auto, but the Sleepy Head report shows Ramp Off.
I don’t know if you need the report for further comments. If you do, let me know. I don’t want to take up too much of your time.
Thanks
Ittiandro