Aside from the obvious stuff like AHI, pressures, event flags and etc., has anyone here posted a thorough explanation here about interpreting tidal volume, minute vent, insp. time, exp. time and how this data relates? I would like to better understand what I am looking at.
Thanks
Primer on reading Sleepyhead data and graphs
- coolbranch
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Primer on reading Sleepyhead data and graphs
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Re: Primer on reading Sleepyhead data and graphs
In my SleepyHead tutorial (in the Announcements section of the forum main page) I purposely omitted
One being that the norms are so widely varied it is impossible to come up with any sort of generalized norm...my norms in all those areas are very likely widely different from your norms....but both are within normal parameters.
All are closely related to a person's sex, size, weight and even where they live in terms of altitude.
Two being I was never able to find anything that offered how those values reflect on actual sleep apnea therapy itself.
All those values have to do with mainly respiration and lung type of data points..more a reflection on respiration in general. They would perhaps be more useful if someone were using maybe the higher end ASV type of machines where air flow and lung issues might be more of a critical issue because they are sometimes used for ventilation issues.
Though I have always felt that if a person had some lung issues already and a compromised respiratory delivery then a person would already be aware of that fact and we wouldn't be using cpap machine data to diagnose it anyway.
If it's within normal parameters it isn't going to tell us much and if it isn't...a person needs to see their doctor.
for a couple of reasons.coolbranch wrote:has anyone here posted a thorough explanation here about interpreting tidal volume, minute vent, insp. time, exp. time and how this data relates?
One being that the norms are so widely varied it is impossible to come up with any sort of generalized norm...my norms in all those areas are very likely widely different from your norms....but both are within normal parameters.
All are closely related to a person's sex, size, weight and even where they live in terms of altitude.
Two being I was never able to find anything that offered how those values reflect on actual sleep apnea therapy itself.
All those values have to do with mainly respiration and lung type of data points..more a reflection on respiration in general. They would perhaps be more useful if someone were using maybe the higher end ASV type of machines where air flow and lung issues might be more of a critical issue because they are sometimes used for ventilation issues.
Though I have always felt that if a person had some lung issues already and a compromised respiratory delivery then a person would already be aware of that fact and we wouldn't be using cpap machine data to diagnose it anyway.
If it's within normal parameters it isn't going to tell us much and if it isn't...a person needs to see their doctor.
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