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New machine settings

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mikerofone +0 points · about 1 month ago Original Poster

My wife and I bought a vacation home so I bought a new CPAP machine online to keep at the second house - a ResMed AirSense 10. My primary doc provided a scrip for it but not having access to my original diagnosis/prescription (more than 10 years ago) he prescribed a generic pressure range of 4-20.

I've used it for 7 nights now and two out of those seven nights I have had just over 5 (5.2, 5.3) events per hour. My mask/headgear are brand new and I'm a side sleeper so changing those factors won't help. I'd like it to be consistently under 5 and closer to 1 most nights.

Can/will changing the pressure range help accomplish this?

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Sierra +0 points · about 1 month ago Sleep Patron

Yes, usually you can improve on the AHI by increasing the minimum pressure and reducing the maximum pressure. And once you narrow down the pressure needed the best AHI can sometimes be achieved with a fixed pressure rather than automatic. But, first I would suggest setting your machine to get the enhanced sleep report so you can see how much of your AHI is CA events vs OA events. More pressure will not make CA events better because the airway is already open. More pressure can aggravate CA events. You can also see the 95% pressure which is a general indicator of how much pressure you really need. See page 17 in the manual at the link below. You want to set the Essentials parameter to Plus to get the enhanced sleep report.

AirSense 10 Technical Manual

The best way however to view your sleep data is to use a software program called OSCAR. It needs a PC or Mac and a SD card reader to get the data from your machine. It lets you view graphs of all the data captured. Then you can see when you are having events and at what pressure they are happening at.

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mikerofone +0 points · about 1 month ago Original Poster

Thanks very much for the advice. Unfortunately my Mac won't allow me to download OSCAR. In terms of increasing minimum pressure and decreasing maximum pressure (already set to 4-20), the manual says 4 is the maximum number for the minimum pressure and that 20 is the minimum number to set the maximum pressure, so I'm not sure how to increase the minimum and decrease the maximum?

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Sierra +0 points · about 1 month ago Sleep Patron

Have you set the Essentials to Plus so you can see the enhanced sleep report? When you do the 95% pressure will give you a good idea what pressure you need. It would also be helpful to know what your breakdown of CA and OA events are. That will tell you if central apnea could be an issue.

You can't set the minimum pressure lower than 4 cm, but you can set it higher. As a general rule I suggest 7 cm for a minimum. If you can give me the 95% pressure from the sleep report and the breakdown of CA and OA events I can give you a better idea what you might want to consider for settings.

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