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Results too good to be true?

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randi +0 points · about 1 month ago Original Poster

My husband was given a Bipap st machine on Friday for obstructive and central sleep apnea. His AHI during sleep study was 93 with his longest event lasting 53 seconds. We were told this is very severe apnea. He puts the mask on and is asleep within minutes. No snoring, just nice quiet breathing. I barely hear the machine. He is starting to be more alert and less tired during the day already. I looked at the sleep report on his machine this morning and it said he had 0 events during the night. Does this sound like a typical response to bipap? Wondering how sensitive the machine is to events.

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Sierra +0 points · about 1 month ago Sleep Innovater

I would probably not say it is typical. Most will experience some adjustment period. However in this case the machine seems to have been well set up right from the start. I'm sure he will feel a big improvement.

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Sierra +0 points · about 1 month ago Sleep Innovater

Thinking about your post a bit longer, there is one other possibility. I see that he is using a ST machine. That sometimes means that a backup forced breathing method is used. This timed backup can interfere with the detection and classification of the apnea events. In the ResMed machines they still report those apneas but they are designated as Unclassified. There may be some possibility the number you are seeing is not including the Unclassified apneas.

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sleeptech +0 points · about 1 month ago Sleep Enthusiast

Without doing specific research into that machine, I can tell you that the standard is for unclassified apnoeas to be included in AHI.

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Sierra +0 points · about 1 month ago Sleep Innovater

I have a recollection of a poster a few weeks ago asking about having zero CA and OA events. I think they even posted a Statistics sheet from SleepyHead, but when they posted as Daily screenshot the Unclassified events were there and quite significant. My conclusion is that the ST function sort of fixes the apnea, but not quite... One would need to see a zoom in of the flow graph during some of them to be sure what is going on.

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Sherry +0 points · 21 days ago

It sounds like his life and yours will improve greatly with his treatment. The proof is always in the pudding! If he is feeling better and more alert, that is a great sign he is on the right track. I am sure his provider will be doing close follow-up on his stats as well.

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