Ahi data on respironics system one bipap s/t not possible?

[m3m3m3]

Hi all

I've been using my bipap for a couple of months now. But it is unclear if the machine is helping. My DME has given me copies of the reports from the sd card and the reports don't have ahi info. Instead it only lists total apnea count. When asked what this total apnea count means, no one could give me an answer. Does anyone know what this total apnea data represents?

Also my understanding is that this machine does not have any way to give AHI data. Is this correct? Is there any way to get AHI data from this machine?

I was prescribed this machine because I get central apneas as a result of cpap treatment (per my sleep study). Thus this machine was prescribed. But it seems very strange that we have no way of getting AHI data and thus I am unable to empirically see if this machine/treatment is helping me or not...

Anyone have answers or experience with this? Thanks in advance!

[ozij]

Hi all

I've been using my bipap for a couple of months now. But it is unclear if the machine is helping. My DME has given me copies of the reports from the sd card and the reports don't have ahi info. Instead it only lists total apnea count. When asked what this total apnea count means, no one could give me an answer. Does anyone know what this total apnea data represents?

It means the total number of time you stopped breathing for the period reported.

Also my understanding is that this machine does not have any way to give AHI data. Is this correct?

AHI is simply the total number of apneas and hypopneas, divided by the number of hours you sleep. I'm sure your machine can report the this number, which is the Apnea Hypopnea Index

Is there any way to get AHI data from this machine?

Yes, by using the Encore Pro software correctly. I don't know it will enough to give you the instructions -- but the point is that your DME is only giving you a summary report, whereas you can also get a more detailed one.

According the machine's brochure http://bipapst.respironics.com/PDF/BiPAP_Brochure.pdf the following data can be accessed on the machine:
http://bipapst.respironics.com/PDF/BiPAP_Brochure.pdf

Easy access to patient data
Monitor patient compliance. Evaluate ventilation efficiency. Identify trends.
Tap into EncorePro and EncoreAnywhere ventilation • data management software. Access BiPAP AVAPS and BiPAP S/T ventilator data • such as AHI, leak, clear airway apneas, and minute ventilation.Connect to your patients via wired and wireless • modems plus an SD memory card.

[archangle]

SleepyHead probably works with this machine. If not, jedimark is pretty quick on adding it to the list if you will send him your data.

viewtopic.php?f=1&t=65738

[BrianinTN]

I used this exact machine for a couple (very rough!) months. It turned out not to be the right machine for me, but it is a capable machine that will generate data that Encore can use to produce relatively comprehensive reports. The only major thing that it will NOT do -- in contrast with other PR "System One" models -- is generate waveform reports.

Here are a couple screenshots of mine from Encore Pro's analysis of my S/T data back in the day:

[Guest]

Thanks to all that replied!

I find it so strange that my dme and dr said there was no ahi data from my machine... I've ordered the encore viewer sw hoping that I can see ahi and my progress with treatment (since I do not notice any difference in how tired I am since starting treatment)

What is strange is that the reports my dme printed and gave me look the same as posted except mine do not have any ahi or Ca/oa listed. Instead mine only has total apneas.. Could it be I am running a different version of firmware? My unit says V 1.07 everytime I plug it in...

May I ask what waveform reports are and why they are useful? Thanks!

[BrianinTN]

Firmware ought not have anything to do with it. The software itself is the determinant. I'd make sure you have a current version of Encore Pro.

Waveform reports are useful to look at the breath-to-breath patterns and figure out what the residual sleep issues are. Because of their level of detail, they offer superior data analysis material than your usual AHI, which is just an aggregate statistic. Not everyone truly needs this data though, and most people would have difficulty properly interpreting it.

[Pugsy]

May I ask what waveform reports are and why they are useful? Thanks!

Here is example of waveform data. This is from Encore Pro. Encore Viewer doesn't give this report.
Simply an up close record of your breathing and the events. If one uses SleepyHead software they can zoom in even closer and get a second by second look at individual events.