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I recently had a sleep study and when given the results, I was astonished. They told me that I averaged 98.3 episodes per HOUR. Is that even possible??? Did they mis-speak and mean 98.3 times during the whole study? Being that there is only 60 minutes in an hour, that seems awfully high to me.....
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Replies to This Discussion
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Permalink Reply by BeeAsleep on
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Hi there, if you have the official data reports from your sleep study, and you can post them there are a lot of people who can answer your question.
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Permalink Reply by Jan on
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You should certainly clarify with your doctor because the number is meaningful. I misheard my doctor when he told me that I had over 200 episodes and took that to mean in an hour!!! Turned out that the number of episodes (generally called AHI) per hour was 73. That is still more than once a minute and pretty shocking. The good news is that I have been using the CPAP therapy for about a month now and my "episodes" per hour or AHI averages about 2.4. By the way, there are people here on the forum who did start out as high as 90 something an hour, so it is possible...though still very worth while clarifying.
Jan
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Permalink Reply by Mary Z on
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In this same vein (I'll ask my doc, too), does anyone know if when I read the AHI and AI on my ResMed CPAP Auto 25 if the number of events is for the whole night, an hour, or an average for the night? My numbers still vary widely. See the doc next weeek and will find out where to go next. What surprises me is that my sleep apnea worsened so much after initial diagnosis. Anyone else have this experience?
Thanks,
Mary Zimlich
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Permalink Reply by Brian Katzung on
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The definition of an apnea is the cessation of breathing for 10 seconds or more.
To get an approximate theoretical limit, consider 10 seconds not breathing, 1 second breathing, repeat. That would be a fraction over five (60 seconds divided by 11) per minute, or a fraction over 327 (3,600 seconds divided by 11) maximum per hour.
So yes, it's very possible.
My reported AHI for REM sleep was 108, but the accuracy also depends on the recording time. The general range (and getting it corrected) are probably more important than the exact number.
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Permalink Reply by Saz RPSGT on
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That's not an uncommon index at all. That' roughly 1.5 awakenings from a breathing disturbance per minute of sleep. Of the 6 sleep studies I score per day I would say that 4 fall into this number range or higher.
The highest I've ever seen was over 160. You have to pack them in tight for that kind of number.
saz
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