OSA & ResMed AutoSet Spirit Definitions

jdschooler · Post by **jdschooler** » Sun Mar 06, 2005 10:38 pm

I need the definitions of the abbreviations found in the Efficacy & Usage Data portions of my ResMed AutoSet Spirit.

PRESS: ?

AHI ?

AI ?

Leak ?

HI ?

USAGE ?

What do these mean and what are normal values, goal values, and poor values for them.

snoozin' · Post by **snoozin'** » Mon Mar 07, 2005 9:48 am

Jeff,
I don't have the Spirit, and am not positive what these would be, but my best guess would be:
PRESS would be the pressure the machine used. ie if your machine is set between 10-14, you might get something like 90% 11.2 meaning that 90% of the night it was at 11.2 or less. Or you might get amounts like max. 13.4 meaning that the highest it went that night was 13.4.
Pressure is going to depend on what ever pressure you need, and everyone's settings will be different.
AHI: is Apnea/Hypopnea index. This is the amount of apneas and hypopneas the machine recorded averaged per hour. AI: is apnea indes - like the AHI, but apneas only
HI: is hypopnea index
The AI and HI are often added together to get the AHI
Any of the indexes, AI, HI and AHI are usually good if they are under 5
Leak is the amount of leak that the machine recorded. Some lead is usually considered normal, becasue of the CO2 vent on the mask, but how much depends on the machine. I am not familiar with the Spriit, so can't tell you what is a good number for that machine.
Usage is probably how long you used the machine and/or how many nights. This would be your compliance data.

Hope this helps.
Debbie