I've posted on a couple of CPAP boards (and read at more) and it's clear that there are a lot of us who like to see what the ventilators are doing overnight and how many apneas & hypopneas there are. Quite a few of us own pulse-oximeters too, so this data can also be included.
One problem is that each device has it's own printout, making comparing them tricky. However, with a little time and Photoshop, you too can create your own sleep data page.
I created an A4 page in Photoshop and found that it was then easy to align all the graphs as long as all the monitors were were started and stopped at the same time (or as close as you can manage).
You can either print all the various outputs to PDF files using either Adobe or the free CutePDF then open them in Photoshop or you can take a screenshot from each piece of software.
Then cut and paste each graph onto your A4 blank and stretch them so that the start and stop times align.
Violà - Data!
Below is an example of one from a night of a family member's BiPAP data.
I then pasted bits of relevant data from Zeo and the oximeter around the edge.
This is from a night of making adjustments to the backup rate of breaths and is a good example of what aligning the data can reveal.
Take a look at the highlighted strip and work down from the top...
When you look down to the Zeo hypnogram it becomes clear. The extra breaths were waking them from sleep, hence their spontaneous respiratory rate increased even more.
The backup rate was too high, so I reduced it.
Here is a simple overlay of the Zeo hypnogram onto the ResScan report. (I pasted the hypnogram into a new layer in Photoshop and then made it semi transparent).
A correlation between minute ventilation and periods of being awake (actually broken REM according to the 30 second hypnogram) is easy to see.
Also the apnea flags point to me losing deep sleep due to apneas.
More about that and what I plan to do about it in another post though.
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