Slimline/Standard Wrong Setting

[70sSanO]

I realize that Slimline vs. Standard has been discussed ad nauseam over the years, but this is a bit different.

A couple of months ago I got an AirCurve ASV that has worked remarkably well.  In the past I'd be into the clinical menu checking things out, but I never wandered into it on this machine until a couple of days ago.

I have a Slimline hose (not ClimateLine) and the machine has been set to Standard in the menu all along.  So I switched it to Slimline.  It didn't seem as comfortable and my numbers were not as good.  Maybe it's all in my mind, but I switched it back to Standard and I slept better and had better numbers.

With an ASV it may be a moot point as the only fixed pressure is my EPAP at 5.0; which always shows up as 4.9 on the machine's Clinical Sleep Report screen.

I don't suppose it is worth the effort, or even possible, to calculate any meaningful setting differences to change and I imagine the advice I will get it to leave it mismatched.

John

[Sleeprider]

John, it's interesting, but impossible to know whether it is an error or a coincidence that therapy is better on standard as we we have not looked at the machine code. Good that standard settings work.

[70sSanO]

In the end I’ll probably file this under... “If it ain’t broke” category.

I have always felt that the Slimline had slightly more pressure to offset the lower volume of air flow. When I first tried one with my S9 way back when the air felt more piercing and I never took to it and just stayed with a standard hose.

I did do somewhat of a split therapy last night. It seemed like the pressure was greater selecting Slimline on the machine over Standard with the Slimline hose. I even experienced a bit of aerophagia. On the Standard machine setting with the Slimline hose the therapy seemed more comfortable and the numbers were a bit better.

I suspect that with my ASV the machine adjusts to a certain breathing pattern (central/complex) and that air volume is not as important. While not making any recommendation, it is interesting for those that feel there is too much air flow.

John