RE: New to this - Need help
Well you may have aroused during the night, but it definitely helped. On the 13th and 14th your 95% flow limits were 0.04 to 0.06 compared to 0.09 to 0.12 previously, and your 95% pressure has dropped, even with a higher minimum. There is a clear improvement in tidal volume, and the increased ventilation is probably why you have more CA events. These will diminish. The increase in pressure on 2/14 is due to an increase in flow limits and it looks like you might have been awake. I can't tell you all this means you must feel better or not, that is entirely your call, but I don't see a problem.
RE: New to this - Need help
(02-15-2021, 03:27 PM)Sleeprider Wrote: Well you may have aroused during the night, but it definitely helped. On the 13th and 14th your 95% flow limits were 0.04 to 0.06 compared to 0.09 to 0.12 previously, and your 95% pressure has dropped, even with a higher minimum. There is a clear improvement in tidal volume, and the increased ventilation is probably why you have more CA events. These will diminish. The increase in pressure on 2/14 is due to an increase in flow limits and it looks like you might have been awake. I can't tell you all this means you must feel better or not, that is entirely your call, but I don't see a problem.
Good to know. I am still learning how to interpret the graphs. So, if it has improved, something else is waking me up, what did not happen so much before I was using the CPAP. I will keep on searching, as it is making me feel more tired than when I was having apneas...
Thanks a lot!
RE: New to this - Need help
Hi, I am back. Based on your suggestions and with the daily results, I progressively narrowed the pressure range and currently I have it at min 7 max 9 (almost like a CPAP), what has been working really well. However, a few days ago, I noticed something quite odd: the machine detected an obstructive apnea even though there was no flow limitation and the mask pressure went down to zero (there is no leak being shown).
This sounds like counterintuitive to me - I would expect that the pressure would increase to open the airways, not drop to zero.
This happened twice that night, hours apart. Not sure about other days, as I have not checked every single one.
The machine was on, there was no power loss, so why did this happen?
RE: New to this - Need help
the left side of the OA looks like awake breathing, That OA could be your holding your breath, the right side you appear to be sleeping, That is one I would just ignore as SWJ
RE: New to this - Need help
Your mask pressure did not go to zero, it went below the minimum scale of 5.0. I think your problem is the Y-axis scale on the mask pressure. The y-axis range is only from 5.0 to 9.0, but with your settings of 7.0 to 9.0 with EPR at 3, the minimum of the Y-axis needs to be 4.0 (7.0 - 3.0 EPR). You can fix the Y-axis and either set it from 0 to 9 or 4 to 9 depending on your preference. Just right click and over-ride the Y-axis scale.
During an apnea event, no inhale is triggered, so the machine remains at the EPAP pressure. It is likely there is also a pressure fluctuation there from the FOT.
RE: New to this - Need help
Good catch! You are absolutely right, the axis is wrong. Mystery solved! :-)
