Sleep Graphs

[Sparticus]

Does anyone own any sleep graphs? Im looking for 2 graphs that show normal sleep patterns ie rem sleep and deep sleep and one with an osa sufferer. Its something I have never seen yet and would like to compare them just to see how different it is. I know we have these kinds of graphs

But they are hard to explain to someone and there is no comparison to the norm. Thanks

[symmit]

I'd be intrigued too - I can see from my oximitry graphs the various stages of sleep on them and they match with the pressure graph from the CPAP.

(geekish stats chasing mode off)

[Sparticus]

Thats ok for you to say but Now Im stuck in this mode. What I want to see is the normal graph going deeper entering proper sleep and an apnea patient bobbing around on the top. I would gladly make one if I had the data

[James @ Intus]

On pure oximetry (oxygen and heart rate) you can't really tell the sleep phases or whether someone is asleep or not with enough accuracy. Even a multi-channel respiratory study doesn't show that though the chest effort and heart rate will give some clues. You're really talking PSG with all its data channels before you can see actual sleep phases and wake/sleep cycles in the graphs.

[Sparticus]

Readings

It seems that the only way you would get a graph showing this is by making one. taking your readings everyday and making your own graph on how your doing and getting someone who doesnt have osa to use a machine and compare them, very unlikely

[Sparticus]

Another great example which clearly shows events.

[symmit]

Oximitry

Well, I have a few weeks oximiter data and had an hour to spare so just reviewed last night and the four previous weeks. I think it's good news!



spo2 december.JPG

I've calculated them ignoring the first and last hour of recording (going to sleep and waking the numbers are all over the place!) - 17th was my first night using flexline instead of auto mode, but what's really helping me see how effective the therapy is being is the pulse rate - that is a trend that's dropping continually.

I'm going to write a program to analyse my raw data from the oximiter a bit more finely, the software that came with it is fine if you want to spend the time reading through the graphs and counting events but it doesn't allow you to ignore the start and end and it seems to count drop outs as desaturations.

[Sparticus]

What about blood preasure readings, I would imagine that when the Spo2 drops your preasure should rise quite a bit I would thought, maybe this is what causes the headaches in some people? If you already have or suffer from this then surely this is where the danger lies for some. Not sure if any data has been gathered for this but would be very interesting if this is what can cause strokes in people, do you get any high unusual reading with your oximeter, like a rising pulse for no reason during sleep. If not then I would gather that your having no events as when you stop breathing your pulse will raise to compensate for lack of oxygen.

[symmit]

I was in the habit of checking my blood pressure every morning and evening, and had noticed (as had my doctor) that it was in the 130/90 to 150/120 range, settling to 120/80 ish in the evenings.

Yesterday morning, after a lovely night of CPAP it was 100/64. I checked on both arms as I didn't believe it - that was the higher of the two readings.

Been doing some reading, seems the apnoea causes adrenaline release to pop you awake, force you to breathe and increase your heart rate and blood pressure - for me I was waking in a panic and not understanding why. Now I wake relaxed and refreshed - the exact opposite.

This is yet another reason why the CPAP is being a real life changer for me.