GK 420E/silverlining reports

cvansant · Post by **cvansant** » Thu Oct 20, 2005 8:02 pm

Anyone notice similiar correlation in their Silverling reports?

My details reports are almost all flat lined at my minimum pressure setting except when I spring a leak. The machine then does its job and cranks up the pressure to compensate. It may stay up for a while (Possibly I not waking right away) or fall back in short order. That is also when it seems to record apneas (I have few) and/or hypops (more). Makes me wonder if it thinks my re-adjusting the masks is apneas/hypops.

BTW: Does anyone know a way to expand the details report out for finer granularity? I would like to see if these are occuring at the same time or just appear to be. I've thought about trying to open the raw file to see what the data looks like. Haven't done so. Yet!

Clif

Guest · Post by **Guest** » Thu Oct 20, 2005 9:32 pm

OR...is the apnea/hypopnea event causing the machine to increase the pressure and THAT causes the increase "leakage" and then to you readjusting the mask???

Chicken or the egg???

These things keep me up at night too...

AND what is the "Cycle States" graph telling us anyway???

BTW: Does anyone know a way to expand the details report out for finer granularity?

On the "Detailled record" page (That's PB's misspelling of "detailed"- not mine) you can click on the magnifying glass to get a closer look at the data. You can thenuse the "crosshairs" looking thing ( + ) next to the magnifying glass to plot out each point almost to the minute.

That's the best I know....still on the learning curve....near the bottom....

NOzsnAZ · Post by **NOzsnAZ** » Thu Oct 20, 2005 9:34 pm

D'oh!! That was me - sorry, forgot to log in AGAIN!

NOzsnAZ

cvansant · Post by **cvansant** » Sat Oct 22, 2005 11:00 am

Yeah, it could be the chicken or the egg.

I have looked at and wondered about the cycle states, but not enough to make me question it. So far.

Getting slow in my dotage I guess. I have used the magnifying glass to isolate data but didn't think to use the crosshairs.

Thanks NOzsnAZ.
Clif

cvansant · Post by **cvansant** » Sat Oct 22, 2005 1:04 pm

Follow up to my own Q's.

Expanding the data out shows, in every instance, councidence between leaks starting and a rise in pressure. Aps and/or hypops were only coincident or close, before or after, a couple of times. Most events were significantly displaced on the timeline. So, I'm back to the original Q. What the h@!! is it looking at?

I did notice that the cycle states had some inverse correlation with pressure rises, but not significantly so. Still no idea what it is saying.

Think I'll back the ressures down to minimums for a night or two and see what it looks like.

Clif

ozij · Post by **ozij** » Sun Oct 23, 2005 1:02 am

Hi Clif,
The leak data contains both the vent leak - which is unavoidable, and the leaks we want to avoid.

When the pressure rises, the leakage from the vent rises as well. So, whenever there is a rise in pressure - no matter what the reason, you'll see a rise in the leaks. Many mask manuals have a graph of the relationship between prressure and vent leak at the end of their manual.

The PB 420e always reacts with a pressure raise when there's an apnea or a snore, and, depending on the IFL switches, also when there a flow limitation run, or a hypopnea concurrent on a flow limitation.

O.

cvansant · Post by **cvansant** » Sun Oct 23, 2005 3:42 pm

Thanks ozij.

Looks like I will have to go read the manual. (You probably know the story. Manual? What manual?)

I didn't think about the vent issue. Probably figuring it would be compensated for, and anything displayed would be related to mask to face interface. Although I don't consider them excessive, I do get leaks.

Clif

Mask