09-05-2016, 05:46 PM
(This post was last modified: 09-05-2016, 05:56 PM by rich2905.)
I recently went from a Resmed S9 to S10.
Since then i have notice there was an increase in my Respiratory Rates.
While on the S9 the 95% value was always under 20 with a max getting as high as 29
While on the S10 the 95% value are 22-23 and a max of 47.
My AHI is under 5 but that has also increase as well.
While on the S9 I was averaging under 1 and even got a 0.0 one day.
Since going to the S10 it has gone from 1.7 to 2.1.
Mind you the last night would have been good except for a batch of hypopneas around 6:40 - may be when I was waking up.
Thanks for any help,
PS Another observation is that the Resp. Rate increases seem to correlate with a flow limit increase
09-05-2016, 06:09 PM
(This post was last modified: 09-05-2016, 06:10 PM by justMongo.)
It would be nice to see the flow and pressure, high sample rate data on that screenshot.
How are you running that machine? It's an autoset; but are you running in CPAP mode?
Your profile says Pressure = 15. Is EPR on or off?
Anyway, here's a stab at the respiratory rate: It is occurring during flow limitation.
If you were to zoom in on the high sample rate flow waveform during one of those periods, I think you'd see the flow wave become ragged.
You might even be able to pick out where the flow waveform is making a wiggle where it crosses the zero flow line where it normally would not.
The machine picks up that zero crossing as a breath. You are artificially doubling your respiratory rate at that time.
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09-05-2016, 06:20 PM
(This post was last modified: 09-05-2016, 06:27 PM by surferdude2.)
If possible, have the DME check the pressure on your old unit and compare it to the new one. It looks like you may need to raise the pressure slightly as demonstrated by the respiratory disturbance you are getting when the limitations appear. Possibly the old machine was set slightly higher or was not accurately reporting the pressure.
edit: I'm assuming you're running in cpap mode and set at 15 cm, as given in your profile. If you changed from cpap to apap, that could cause what you are seeing and would indicate the need to raise the lower pressure setting and possibly the higher one as well.