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Varying event and AHI numbers

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CdrRayJ +1 point · 27 days ago Original Poster

I have been running high numbers (40+) with events exceeding 50 regularly. However stayed at a hotel for a couple of nights and the event numbers were less than half (21 and 25). I’m in the queue for another sleep test, but the lower numbers in a different bed are a mystery to me. Any ideas.

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Sierra +0 points · 27 days ago Sleep Innovater

Some events can be caused by a less than restful sleep. However whether it is 40 or 25, both are still too high. Does you machine support SleepyHead? If so looking at the data with it, may be informative as to what the problem could be.

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CdrRayJ +0 points · 26 days ago Original Poster

Thanks. Will explore Sleepy Head. Not spent much time there.

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sleeptech +0 points · 22 days ago Sleep Enthusiast

It could easily be down to the fact that you were lying in a different position when you were in a different bed. However, your lower AHI is still too high and it is good that there is a plan to look into it.

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sleepy34 +0 points · 20 days ago

Even 21-25 AHI seems way too high. Normal is 5 or less. Greater than 20 is still considered severe. Could this be a positional issue? On nights when I sleep on my back I’ll have high numbers (30-40 AHI). If I stay on my side with good mask fit I am always under 8 and usually under 5. If not positional, it almost has to be that you need more pressure.

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Sierra +0 points · 20 days ago Sleep Innovater

Only if it is obstructive apnea. More pressure usually makes central apnea worse, not better.

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randi +0 points · 13 days ago

I'm seeing AHI numbers that are much lower than my husband's. I'm assuming 93 is very severe? During his initial sleep test last month a bipap machine got his AHI down to 5.7. Is that an acceptable level? We are still waiting on his machine and mask.

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sleeptech +0 points · 13 days ago Sleep Enthusiast

Usually we aim for an AHI of <5, but 5.7 is pretty good considering it has come down from 93. Also, the AHI from a titraiton study can be artificially high because it often takes a while to get the machine set properly. Until the machine is finally just right, there will still be events happening, causing the AHI to be higher than it would be if you had started at the right settings (which you will when you have your own machine). I wouldn't worry too much about that 0.7 for now. Get to grips with everything first.

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Sierra +0 points · 13 days ago Sleep Innovater

You mentioned in another post that the 93 AHI is a combination of central and obstructive. The obstructive will probably come down dramatically, but the central apnea does not respond positively to pressure, and more pressure can make it worse. Your machine AHI results will give you a more realistic picture of where things are at.

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