dsm wrote:RG,
BipapAuto vs AutoBipap vs Bipap Auto with BiFlex
Hmmmm, bit of a worry when we begin insisting a machine has to be described only one way
You can call it anything you want to, but when you say this kind of thing in a topic that has been predominately talking about "autopaps":
dsm wrote:One excellent Auto is the Respironics AutoBipap it does both Bilevel and Auto function
That does make it sound like that machine is another kind of "autopap."
I know you know what it is. You know I know what it is. But, Doug, there are many new people reading this message board every day, trying to sort through the different types of machines, confused by the model names and what the different machines do. That is the only reason I think it's good to be a bit more .... ummm.. precise... in calling that machine by its name. A name which tells what kind of machine it really is -- a
bilevel machine, not to be confused with an "autopap" (autotitrating CPAP) machine.
dsm wrote:But if it helps - yes the reference was to the Bipap Auto with Biflex - I am not sure what other model you think it can be confused with ?
Doesn't confuse me, but yeah...referring to it as "
One excellent Auto"
could confuse new people into thinking you were talking about yet another
autopap.
dsm wrote:Also on this never ending debate over EPR can't be any good because it doesn't work in Auto mode.
"never ending" perhaps because you happened to bring up your opinion about it again... LOL!!! After which, I gave my opinion. Surely you don't mean that your opinion is the final word about it and no one else should then state a different opinion.
dsm wrote: RG I tell you again it isn't needed in auto mode
You say it's "not needed" in auto mode. That's your opinion.
My opinion: IF a person wants (and/or needs) to use an autopap in Auto mode AND wants (and/or needs) exhalation relief every time they breathe out, an exhalation pressure relief feature that can be turned on when using an autopap in auto mode can make the difference between doing this kind of treatment
comfortably...or, for some people...at all.
dsm wrote: EPR turns the machine into an easy to set bilevel with up to a 3 CMS range between breath-in and breath-out. That is as much as any cpapper needs.
"
that is as much as any cpapper needs." Wow. That's
quite a far reaching conclusion for any one person to make about what
any other cpap users might need. Seriously, I sure hope you just fired that off from the hip and don't really mean that.
What you seem to be missing (perhaps because
you have preferred using a bilevel machine) is that some people do like, and/or need, exhalation relief if they are going to be using an autopap in auto mode. That can be so whether their use of an autopap is from having been
prescribed an auto-titration trial, or simply because they prefer (and/or need) to use an autopap in auto mode as their permanent treatment machine.
Speaking of "EPR turns the machine into an easy to set bilevel with up to a 3 CMS range between breath-in and breath-out."
dsm wrote:I really believe you must know this but to admit it means admitting the Resmed did something good and that seems to me to be where the problem really is .
I have no problem at all with recognizing when
any manufacturer does something good (or bad.) For example, I've said many a time before that resmed got it right when they designed their LCD data display to break down AHI and to show the last session data instead of just a running weekly/monthly average. Also, having EPR for cpap mode is better than nothing.
Leaving EPR out of auto mode was not so good, imho.
And having EPR
not drop the pressure the full setting (1, 2, or 3 cm drop) when a person FIRST STARTS to exhale is not so good, imho. EPR (in my experience, anyway) doesn't give pressure relief when it is most desirable...when a person tries to get an exhalation STARTED.
EPR is better than nothing, though, and does give comfortable exhaling
as the exhalation progresses, but that's a far cry from giving the type of exhalation relief of a true bilevel if EPAP is set for 1, 2, or 3 cms less than IPAP. A true bilevel drops the pressure
immediately when inhalation stops...the lower pressure for exhaling is
already in place to allow the person to get an exhalation
started easily. Very different from the resistance a person feels when
starting to breathe out against an EPR setting.
dsm wrote:But as already said elsewhere, the new Easy Breathe feature now adds an even more sophisticated EPR capability. No matter what some think of Resmed, they do make some interesting and very effective innovations. So do Respironics & so do F&P & so do Puritan Bennett.
Yep, resmed's coming out with "Easy Breathe" sounds very similar to what users of Respironics Auto with A-Flex have already been enjoying quite comfortably for quite some time now.
Seriously, I do agree that each manufacturer has its own strengths, weaknesses and innovations. I'm always glad to see each one working on improving their designs.
dsm wrote:Re Auto machines, I would take a bilevel any day - but that is my personal choice just as I think it is yours to promote Autos.
There are specific reasons that have
nothing to do with my own personal choice of what machine I use most nights, for my frequent suggestion of the Auto with A-flex:
1. A-Flex feels more like natural breathing to many people than no relief, than EPR, and than C-Flex. A-Flex is available only in the auto with A-Flex...soooo.
2. To get a bilevel machine (including the
BiPAP Auto ) a person would have to have their Rx changed to "bilevel." To get an autopap (like the auto with A-flex) a person has at least a chance of convincing a DME to give them an autopap set to operate as straight cpap per the Rx for "cpap." Or, if the person's finances allow, that simple cpap Rx would let the person buy the Auto with A-Flex from an online store like cpap.com.
3. Encore Viewer software (used by Respironics machines) is readily available for users to buy.
At home, I happily and comfortably actually use my
BiPAP Auto
more often than the Auto with A-Flex which is equally comfortable for me to use. My Auto with A-flex is often out on loan.
dsm wrote: Most people who use Autos over time will narrow their range & often down to a 5 CMS start / peak range.
Wow, again. "Most people" "often down to a 5 cms start" Again, another very sweeping generalization about
your opinion of what "most people who use autos" and, I'd add... who set their own machines range themselves... do.
dsm wrote: The experienced among us know that Autos set to big ranges cause more problems than they solve.
"Big ranges" "cause more problems than they solve"... another sweeping generalization. Especially when "big ranges" could mean anything. If you mean leaving an autopap set at 4 - 20, I agree that's not a good way for an autopap to be set (imho)...not even for an temporary auto-titrating trial. As for when an autopap is used as a permanent treatment machine, I think it is NOT the wide open UPPER setting that is a problem for most people. "Narrowing the range" in the most effective way possible, to me means getting the lower pressure set up high enough to prevent most events from the get-go.
So, in the interests of venturing my own sweeping generalization... LOL.. I'd bet that for people using an autopap as their permanent treatment machine, setting it at 9 - 20 or 10 - 20 would give them their most effective treatment while using "auto-titration."
dsm wrote:Autos were introduced as a less expensive (than bilevel) way to provide therapy - self titration was a side benefit for those who understand how to do it.
Again, a "never ending debate", and again, simply because you have brought this up again...your opinion of why autopaps were
first developed. I agree that there have been further uses for them as time has gone on, and the further uses are reflected in marketing blurbs from all the manufacturers.
But, I still think (my opinion) that the main reason autopaps were
FIRST introduced was to use not for "therapy" per se, but as a way to do a home titration for people who were perhaps to ill to be in a sleep lab for a full PSG, or for whom a sleep lab PSG titration was ambiguous, or who didn't achieve enough titration sleep time for a good titration.
In other words, "autotitrating cpap" was developed to take up the slack, if necessary, when a trip to the sleep lab was out of the question. That's also probably the reason Respironics designed (at what point, I don't know...from the beginning, or as an added feature later perhaps) the "split night" mode that still remains in their autopaps today. Split night mode being to gather diagnostic data about events first at as minimal a pressure as possible, and then to titrate the remainder of the night. A cheap ersatz sleep study.
I don't think autopaps were
originally designed at all
with the primary intention of providing "less expensive therapy" than from using a bilevel machine. Nor do I think anything about the later designs of autopaps was to give "less expensive therapy" than with a bilevel machine. That is absolute apples and oranges thinking, imho, since bilevel machines are really intended for specific respiratory needs (which can include a struggle to breathe out against incoming pressure) that have
nothing to do with needing autotitration.
dsm wrote:Autos still only provide one CMS pressure & thus the designers had to add things like flex to provide a justification for why someone would persist with one.
ROTFL!!!!!! Sorry, Doug, but I really did burst out laughing at that. Could it possibly be that since designers saw that C-Flex did make a comfortable difference for people using straight CPAP, that it occurred to the designers, "Hey, that might make using the straight pressures delivered by an autopap more comfortable, too?" So, they put it in the autopap to help people...not, as you would have it, "persist" in using an autopap vs trying to get a bipap. As if the general users of machines out there even know there are other types of machines.
I think we all forget that people on the message board who are tweaking settings and trying different machines are the MINORITY. We are not who the designers are looking at when they design machines. They are looking at (and designing for) the vast majority of people who will never see an apnea message board and who wouldn't even WANT to change a setting or decide on their own what machine they should have.
dsm wrote: I am of the opinion that Autos as we know them will be brushed aside by variations of SV machines.
That day may come. I wouldn't hold my breath quite yet. Simple "autotitration" may always have a place, especially with the advent of Medicare allowing portable home testing... after the testing is done with Type II and III devices, I wouldn't be surprised if there's a whole slew of autopap Rx's being written to follow the more extensive portable home test up "now let's find the pressure needed."
dsm wrote: I am also convinced that people (ignoring for this point, those people with respiratory complexities) on higher pressures gain vastly superior therapy with a bilevel.
Well, I'd call it more comfortable therapy, which could indeed make such a difference for them that it was the only way for them to get effective therapy at all.
dsm wrote:You push Autos, I push bilevels but as is the case, everyone has to make their own choice in the end.
Well, you call it "pushing" on my part. I call it suggesting getting two machines in one as well as a comfortable machine for exhaling -- and most importantly -- the most likely machine other than "straight cpap" the person could most likely actually get, since most people are given a Rx for "cpap"...not for "bilevel."
I do agree that if a person wants comfort exhaling, and if any of the "flex"'s in a cpap or autopap leave them still struggling to breathe out, a bilevel machine is definitely worth talking to one's doctor about. Doug, your enthusiasm for "bi-level" is understandable. I like bi-levels too... they are very comfortable. So is Auto with A-flex at the pressures well below 15 that work for me.
dsm wrote:RG I do enjoy our debates on some of these topics, they do add color to the forum
Yup. Differences of opinion, politely stated, are always interesting.