Any Medical Beneft for C-Flex?

I have my C-Flex turned off, as I really don't find it more comfortable than a constant pressure.

However, I am wondering if there is any reason for this feature beyond "comfort." For instance, would I have fewer Apneas, Hypopneas, or RERAs if this feature were active?

D.H. wrote:I have my C-Flex turned off, as I really don't find it more comfortable than a constant pressure.

However, I am wondering if there is any reason for this feature beyond "comfort." For instance, would I have fewer Apneas, Hypopneas, or RERAs if this feature were active?

If you think about it, you could probably answer your own question. It is a comfort feature.
What does it do? It decreases pressure on expiration at the most 2cm.
When do you have apneas? When your pressure isn't high enough.
So it is possible you would have more apneas while using Cflex but I don't know of a reason they would increase with a higher pressure unless they were CA.

OkyDoky wrote:. . .
If you think about it, you could probably answer your own question. It is a comfort feature.
What does it do? It decreases pressure on expiration at the most 2cm.
When do you have apneas? When your pressure isn't high enough.
So it is possible you would have more apneas while using Cflex but I don't know of a reason they would increase with a higher pressure unless they were CA.

I have very few "Clear Airway Apneas," and even then I cannot ascertain that they are centrals. However, I an wondering if using the C-Flex would somehow be more "natural." I really never liked the feature, so I don't want to use it unless there's a tangible benefit to be derived, such as fewer awakenings to urinate or a lower AHI (my AHI is almost always under 2 and frequently under 1, but I think it should be closer to zero). Also, I have too many RERAs, which I would also like reduced.

OkyDoky wrote:

D.H. wrote:I have my C-Flex turned off, as I really don't find it more comfortable than a constant pressure.

However, I am wondering if there is any reason for this feature beyond "comfort." For instance, would I have fewer Apneas, Hypopneas, or RERAs if this feature were active?

If you think about it, you could probably answer your own question. It is a comfort feature.
What does it do? It decreases pressure on expiration at the most 2cm. actually it's at most 3 cm
When do you have apneas? When your pressure isn't high enough.
So it is possible you would have more apneas while using Cflex but I don't know of a reason they would increase with a higher pressure unless they were CA.

If he thought about it and could read, he would know it's been splained here many times. However due to a error in your post, I will splain it again.

C-Flex is a comfort setting, it really has little effect on your treatment. With C-Flex, you can program in a pressure reduced by 1 cm , 2 cm, or 3 cm Only on Exhale! You don't have Apneas on exhale....... Resmed's settings are different but the result is the same, less pressure on exhale. ( Just for D.H., means easier to exhale). Jim

Just thought of one possible benefit, not using C-Flex requires more effort to exhale against the machine, it might make your lung muscles beef up, also causing more calorries to be burns, however it would be very small a gain. Jim

D.H. wrote:I have my C-Flex turned off, as I really don't find it more comfortable than a constant pressure.

However, I am wondering if there is any reason for this feature beyond "comfort." For instance, would I have fewer Apneas, Hypopneas, or RERAs if this feature were active?

In a word....."No".

I used C-Flex at a setting of "2" for about seven years......turned it off and wondered why I hadn't done that long before.


Den

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Goofproof wrote:

OkyDoky wrote:

D.H. wrote:I have my C-Flex turned off, as I really don't find it more comfortable than a constant pressure.

However, I am wondering if there is any reason for this feature beyond "comfort." For instance, would I have fewer Apneas, Hypopneas, or RERAs if this feature were active?

If you think about it, you could probably answer your own question. It is a comfort feature.
What does it do? It decreases pressure on expiration at the most 2cm. actually it's at most 3 cm
When do you have apneas? When your pressure isn't high enough.
So it is possible you would have more apneas while using Cflex but I don't know of a reason they would increase with a higher pressure unless they were CA.

If he thought about it and could read, he would know it's been splained here many times. However due to a error in your post, I will splain it again.

C-Flex is a comfort setting, it really has little effect on your treatment. With C-Flex, you can program in a pressure reduced by 1 cm , 2 cm, or 3 cm Only on Exhale! You don't have Apneas on exhale....... Resmed's settings are different but the result is the same, less pressure on exhale. ( Just for D.H., means easier to exhale). Jim

The EPR settings on ResMed do correspond to 1cm, 2cm, 3cm but the cflex settings on Respironics are more of a flow based setting and they depend on the how forceful the user breathes. I have read you don't get a full 3cm drop with cflex and Respironics only uses words like small drop instead of cm. Here is a link where Pugsy replied. viewtopic/t56586/viewtopic.php?f=1&t=11 ... x#p1088152

Basically it comes down to they all are marketing ploys, aimed at making it easier for some to live with XPAP, different brands do it different ways.

It comes down to the Three Forms of Matter, as with most things it doesn't Matter, it up to you to decide which to buy and is you like it or not. Jim

It has medical benefit for some people, although I think most people in that situation need more than 3 cm (max of cpap) so a bipap is often more appropriate. Not everybody uses cpap for apnea. Some have reduced lung function which is worsened when laying down. Exhaling against the pressure can be very difficult in that situation.

Even if comfort is the only benefit, it is worth having,
as sleep is often dependent on comfort; and sleep is a BASIC NEED.

I was having a lot of trouble in 2016. Mostly due to Large Leaks (read mouth Breathing). That is another story. As a result of all my AHI was pushing 12 and my pressure was auto at 18-20. I had no where to go (or so I thought) on CPAP. My Dr had me get 2 new Sleep Studies, the first without CPAP and 120 minutes sleep NO REM and 70 AHI. The second was to Titrate for a BiPAP.

I was sleeping when they hit me with what I felt was a 25 Inhale and a 21 exhale, but it was a square wave with NO ramp to the exhale. That woke me up. Adjusted to the inhale with no problem but that exhale was like dropping off a shelf, and it IMMEDIATELY triggered me into a new breath resulting in my hyperventilating. My new machine a BiPAP came with an Rx of 25/21 cmH2O with relief and I had absolutely no issues with it.

Comfort or need? In my case I would say need, but it IS considered a comfort setting. I'm sure I would easily tolerate a setting of 25/25 cmH2O.

Not a member here but for some of us it does help. I have minor reduced lung function due to scarring of my lungs and C-FLEX is the difference between <10 hypoponeas a night and 50+ the slight pressure drop on exhale makes a huge difference in the quality of my sleep. Not related but don't let anyone tell you hypoponeas don't matter including your sleep doc.