PB420e (without Cflex) -vs- Remstar M auto (CFlex OFF)

Curiousman · Post by **Curiousman** » Thu Sep 07, 2006 10:14 pm

Got 2 machines, the PB420e and Remstar auto "M" (Cflex). I'd been using my PB for several months until I decided to get Remstar when it came out in the market out of my curiosity on its CFlex feature thinking that this feature would be more advantageous to me in terms of comfort and convenience. On the contrary, however, after trying my Remstar with CFlex ON (on different settings 1, 2 & 3) for about a month, I finally realized that I don't need it so I decided to just use it with CFlex OFF and compare it with PB (without CFlex). As I began to alternate the machines on a daily basis, I've observed that my PB (without CFlex) is a lot more comfortable than my Remstar (CFlex OFF). Is it because of the algorithm issue? Does the sensor tube in my PB have something to do with this great difference? With this experience, I've decided to use my PB as my primary machine, and Remstar my back up.

Justin_Case · Post by **Justin_Case** » Thu Sep 07, 2006 11:28 pm

What do you mean by "comfortable"? Less noisy? Less pressure feeling?

Snoredog · Post by **Snoredog** » Thu Sep 07, 2006 11:42 pm

I think the 420 is a lot more agressive than the Remstar (e.g increases pressure in relation to events more agressively). I would say both machines are very similar in breathablity (is that a word?) with Cflex feature off. The older Remstar Auto didn't have cflex yet it offered some relief on exhale.

A lot has to do with your 90% pressure and the type of SDB events you have. I know the 420 responds more agressively to snore (so does the Resmed machines).

As for treating run of the mill hypopnea and apnea they both did very well at treating those. If you are easily awaken during the night (from pressure increases) I think the cflex feature has the edge on overall breathing comfort.

I just recently (few months back) went from the older Remstar Auto w/no cflex feature to a newer Remstar machine that has it, I have never slept better.

Don't assume that since your 420 has that internal pressure tube that is delivering accurate pressure compared to the LCD display. The only way to be sure is to check it with a manometer. There is a way to adjust it if it is off in the clinical manual.