Info on so called "Automatic" cpap machine.

They prevent a lot of events and then go higher when it thinks it needs to stop an event or prevent an oncoming event.

Keep in mind that the report shows apneas and hypopneas that managed to happen (though they should be short). Compare that to your sleep study without the machine, and that should give you an idea of how many the machine is actually preventing each night.

MidnightOwl wrote:

Bon Bon wrote:Yes, I have an auto-adjusting cpap machine.

It provides only the minimum pressure needed until it detects the beginning of an apnea/hyponea and then it automatically increases the pressure (subject to my maximum pressure setting) until it can prevent the event.

Here's a link to read more about these machines. https://www.cpap.com/DisplayNewsletter/ ... CPAPs.html

I thought it only prevented the next event? No? How long does it take to call an event an apnea and react to it?

That's not how they work. No APAP machine tries to stop an event after it starts. (Excluding some of the "fancy" bilevel machines like ASV or T mode or "ventilators.")

The exact details vary between machines, but APAPs attempt to detect apneas, hypopneas, snoring, and flow limitations and adjust the pressure upwards gradually to try and prevent the next breathing problem from occurring. I think most of them only increase pressure something like 1 cmH2O per minute.

I would imagine a doctor's family member would get a full-data Auto
--unless the doctor is as ignorant as some of them want us to think they are.