Last Nights Efficacy Data???!!!???

jdschooler · Post by **jdschooler** » Wed Mar 16, 2005 8:41 am

Good Morning,

I got up and checked by Efficacy Data this AM and about fell over. It read like this:

Pressure 15.6
Leak 0.12
AHI 49.
AI 17.7
HI 32.2

Holy *&#^ !!!!

What's up with that? I had the best mask seal I ever had!, Slept well and woke up refreshed, My pressure wasn't too bad. But why such High AHI, AI, & HI?

wading thru the muck! · Post by **wading thru the muck!** » Wed Mar 16, 2005 8:46 am

How have your numbers been before last night? chrisp had problems with the ResMed Spirit (your machine, right?) missing events. He was able to get great treatment with the PB420E, but not the Spirit.

jdschooler · Post by **jdschooler** » Wed Mar 16, 2005 11:33 am

Typical data would be Pressure 12-16, Leak 0.28-0.36, AHI 2-6, AI 1-3, HI 1-3. The highest AHI I've had is 9 and that was when I had Pneumonia and was taking narcotic cough syrup.

I don't even want to ask my DME what's up...They want another sleep study and that ain't happening....

Guess I'll just watch it and see what happens....I can tell my CPAP worked well last night I feel good today and well rested...woke up in the same position I fell asleep in. But I was super tired after 36 hour on my feet when I went to bed last night. So maybe I was just physically drained and had more apnea and hyponea's?

Later

wading thru the muck! · Post by **wading thru the muck!** » Wed Mar 16, 2005 12:28 pm

Jeff,

the machine should not be missing 49 A/H per hour! That is unless you have a very serious case of OSA. From your previous data that does not seem to be the case. Is ther anything you changed? New mask? New machine settings. Do you have the top end set high enough?

chrisp · Post by **chrisp** » Wed Mar 16, 2005 1:15 pm

Are you using the humidair heated humidifier ? I have noticed unusual AHIs when I had rainout in the hose. The Spirit thinks it is apneas but of course it can't clear them since they are in the hose , water glugging sounds.

If you aren't using the humidifier perhaps your pressure sensor adaptor isn't seated completely .

Other than that I'd say your Spirit just had a bad night. Unless you've consumed copious amounts of spirits. That would throw a wrench into the mix.

Cheers,

Chris

Guest · Post by **Guest** » Wed Mar 16, 2005 3:17 pm

Yes I am using the humidaire heated humidifier but didn't notice any rainout. My pressure is set 8 to 20. No other changes to machine or mask. I am using a comfort gel mask that seals great. My humidifier is set at 3.5 and I leave it there. Where this pressure sensor thing? No alcohol or narcotics/sedatives on board cuz I was on duty but I was wiped out physically. My OSA is only classified as moderate. That AHI is an hour? or is it the whole night?

Later
Jeff

chrisp · Post by **chrisp** » Wed Mar 16, 2005 3:53 pm

How about your mask setting for the spirit. Is there a chance that you changed it while in the clinician menue. It has 3 choices. Ultra, Mirage amd ultra FF.

Is there any chance of interference somehow fooling the spirit. Like some noise or vibration it is detecting ?

The pressure sensor adaptor is the small rubber connector that joines the spirit and the tubeing when the integrated humidifier is not used . It goes over the air outlet and has a small tube molded into it.

See how you do tonight.I'm sure it was a fluke.

Cheers,

Chris

wading thru the muck! · Post by **wading thru the muck!** » Wed Mar 16, 2005 4:31 pm

Jeff,

AHI is events per hour.

Titrator · Post by **Titrator** » Wed Mar 16, 2005 5:21 pm

Using the wrong mask setting or mask can give you an incorrect AI and AHI.

Here are the settings to use.

Standard: Activa, Vista

Ultra: Ultra Mirage

Mirage: Original Mirage, Swift

Regards,

Ted

Guest · Post by **Guest** » Wed Mar 16, 2005 6:12 pm

Titrator,

I am using a Respironics Comfort Gel and using the Standard Setting. I also have the Swift Nasal Pillows but don't use them as often. If the AHI is per hour then it would be near impossible to get the reading I did so it has to be some sort of fluke or I would be DED....As far as RF Interferance I don't have anything new in the area of the machine that hasn't been there for the last 2 months.

I am on Main Call tonight so probably won't get more than a couple of hours of sleep but hopefully will see tomorrow night.

eblack · Post by **eblack** » Fri Mar 18, 2005 1:49 pm

Titrator,

Saw your post of 3/16 where you indicated that the correct setting for the Activa mask is "Standard". My Activa mask and AutoSet Spirit were provided to me by my DME set to "Ultra". A phone call to the DME confirmed (rather reluctantly) that "Ultra is the correct setting". A phone call to ResMed indicated that "setting it to Ultra is okay". I then happened to notice in the small booklet that came with the Activa mask that it clearly states that the correct setting for auto machines is "Standard" as you indicated. Now I know why it is called the "practice" of medicine.

Eric