Wildly inconsistent bipap results

I recently started using a bipap. It's a ResMed AirCurve 10 S. My pressures are: ipap 11 and epap 7. My nightly AHI is terribly inconsistent from a low of 9 to a high of 25. The mix of OSA and CA also varies widely within the overall AHI. My sleep routine is very consistent each night. The results for some nights are almost as bad as my initial sleep study without cpap/bipap. Are inconsistent results, especially of this magnitude normal? Is it possible that the machine/software is defective? Thanks for any perspective.

sleepykiddo wrote:I recently started using a bipap. It's a ResMed AirCurve 10 S. My pressures are: ipap 11 and epap 7. My nightly AHI is terribly inconsistent from a low of 9 to a high of 25. The mix of OSA and CA also varies widely within the overall AHI. My sleep routine is very consistent each night. The results for some nights are almost as bad as my initial sleep study without cpap/bipap. Are inconsistent results, especially of this magnitude normal? Is it possible that the machine/software is defective? Thanks for any perspective.

Results will vary each night. More importantly your treatment is likely not very good. Most likely the pressures are not correct or you may have significant leaking.
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TedVPAP wrote: Results will vary each night. More importantly your treatment is likely not very good. Most likely the pressures are not correct or you may have significant leaking.

Yes, Results that vary can be caused by a wide variety of things.

sleepykiddo wrote:Are inconsistent results, especially of this magnitude normal? Is it possible that the machine/software is defective? Thanks for any perspective.

No not once you figure how things work and get the right pressure settings. What software are you speaking about?

You gave this to go on...

sleepykiddo wrote:I recently started using a bipap. It's a ResMed AirCurve 10 S. My pressures are: ipap 11 and epap 7. My nightly AHI is terribly inconsistent from a low of 9 to a high of 25. The mix of OSA and CA also varies widely within the overall AHI. My sleep routine is very consistent each night. The results for some nights are almost as bad as my initial sleep study without cpap/bipap. Are inconsistent results, especially of this magnitude normal? Is it possible that the machine/software is defective? Thanks for any perspective.

Recently meaning how long?

My sleep routine is very consistent each night.

What exactly is that consistent routine?

What position do you sleep in?

For better advise, Post some of your chart results from whatever software you are using.