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archangle Offline
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Posts: 3,159
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed Swift FX
Humidifier: ResMed S9 H5i
CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments: Happy PAPper

Sex: Undisclosed
Location: USA

Post: #21
CPAP vs. APAP
Automatic CPAP (APAP) machines are just CPAP machines with a little further capability.

Most APAP machines can automatically adjust between 4 and 20 cmH2O pressure. However, they can be set to adjust between a narrower range of pressure. If the full pressure range doesn't work right for the patient, you can set it to a narrower range. For instance, instead of a single pressure of 10, you might set the machine at 8-12. If that pressure causes problems, you might use 9-11, and still get some of the benefits of auto pressure adjustment. If you set it to something like 9.5 to 10, you're basically using manual CPAP.

As far as I know, all APAP machines can be set to have the minimum and maximum pressure settings be the same, which is the same as manual CPAP.

You can go full APAP, but you can also "turn down" the range of the auto until you find the range that works. That's why an APAP machine vs. a manual CPAP machine is always the right answer.

The critical thing is to get a fully data capable machine and monitor the data that it collects. It's like having a mini sleep test every night.

Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
06-03-2014 11:06 AM
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