In the DeVilbiss SmartCode Report Definitions, Apnea/Hypopnea Index (AHI) is the average AHI per hour. I have assumed that it meant the number of events per hour that it detected and STOPPED per hour. The main reason I assumed this was because of the NRI stat (Non Responding Events) which is the number of events per hour that it detects but does not respond to.
But now I see in the definitions for AHI, "While on the AutoAdjust or AutoBilevel, an AHI equal to or below 10/hour is acceptable but an AHI equal to or below 5/hour is best."
This makes me think that the machine is not responding to these events. I'm averaging 8 per hour, and if these events are not being stopped that is totally unacceptable. Thanks for any help... William
Meaning of DeVilbiss AHI Report Definition
Re: Meaning of DeVilbiss AHI Report Definition
Hi, I'm not sure why that sentence has you believing the machine won't respond to events... all it said was that it's more preferable to have events under 5/hr and/or up to 10, but it didn't say they (or others) wouldn't be treated. Those are standard suggestions for how many events are acceptable or not, that's all, so don't read something into it that wasn't there.
In any case, what are your settings and what do your usual results look like? I also use only the codes to assess my progress and so far have been very happy with how things are presented.
If, however, you only do have a very few (<5-10) events at any time, could it be possible you've got 'positional' apnea that might be fixed by not sleeping on your back and/or maybe wearing a soft cervical collar to help keep your airway more open as well, so that possibly in time (and after further testing or using an oximeter overnight) you might not even need a machine.
In any case, what are your settings and what do your usual results look like? I also use only the codes to assess my progress and so far have been very happy with how things are presented.
If, however, you only do have a very few (<5-10) events at any time, could it be possible you've got 'positional' apnea that might be fixed by not sleeping on your back and/or maybe wearing a soft cervical collar to help keep your airway more open as well, so that possibly in time (and after further testing or using an oximeter overnight) you might not even need a machine.
_________________
Mask: Ultra Mirage™ Full Face CPAP Mask with Headgear |
Humidifier: IntelliPAP Integrated Heated Humidifier |
Re: Meaning of DeVilbiss AHI Report Definition
The manual is not very clear on this, but the events that Devibiss includes in the NRI number are events that do not fit its definition of an apnea or a hypopnea. These events might be scored by other machines as events such as snores or central apneas. The NRI are events are simply those that the machine's program says are events where increasing pressure will not resolve the event.
Also note that the machines allows some alteration of the definition of hypopnea and apnea. If these definitions have been altered, then some hypopnea or apnea events might get scored as NRI's.
Also note that the machines allows some alteration of the definition of hypopnea and apnea. If these definitions have been altered, then some hypopnea or apnea events might get scored as NRI's.
_________________
Mask: SleepWeaver Anew™ Full Face Mask with Headgear |
Humidifier: IntelliPAP Integrated Heated Humidifier |
Additional Comments: Pressure 9-12, Sleepyhead V9.3-0 |
Re: Meaning of DeVilbiss AHI Report Definition
Thank you for the information about NRI. But my real question is about AHI. Does the machine respond to and stop the events recorded in the AHI stat before they become a traumatic event? I am averaging 8 an hour.
I just had two stints put in my heart and I sense brain damage from before I started CPAP therapy so it is critical that my therapy is working. I am using the SleepWeaver Elan mask.
Again, thanks for any and all info...
William, retired in the Philippines.
I just had two stints put in my heart and I sense brain damage from before I started CPAP therapy so it is critical that my therapy is working. I am using the SleepWeaver Elan mask.
Again, thanks for any and all info...
William, retired in the Philippines.
Re: Meaning of DeVilbiss AHI Report Definition
It's supposed to prevent the events from ever happening to the point that they earn a flag.William in PH wrote:Thank you for the information about NRI. But my real question is about AHI. Does the machine respond to and stop the events recorded in the AHI stat before they become a traumatic event? I am averaging 8 an hour.
8 per hour is more than I would want to see myself. If OA or hyponea that usually means the pressure is not optimal.
_________________
Machine: AirCurve™ 10 VAuto BiLevel Machine with HumidAir™ Heated Humidifier |
Additional Comments: Mask Bleep Eclipse https://bleepsleep.com/the-eclipse/ |
I may have to RISE but I refuse to SHINE.
If you want to try the Eclipse mask and want a special promo code to get a little off the price...send me a private message.
If you want to try the Eclipse mask and want a special promo code to get a little off the price...send me a private message.