Progressive sleep apnea?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Pugsy
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Re: Progressive sleep apnea?

Post by Pugsy » Wed May 14, 2014 7:21 pm

I am only going to second everything Robysue has just said. No sense in my typing everything all over again.
Given your history and your own stated poor sleep quality.....
robysue wrote:you need to listen to your doctor
For the life of me I fail to see why you are so resistant to allowing him to use his expertise to help you figure this all out.
Whatever is going on here it is far from normal and it is NOT something to play around with and sure as heck isn't something we (lay people on the forum) have any business messing with.
Plain jane vanilla OSA with no complicating factors..yeah maybe we offer ideas but the AFib alone is a huge complicating factor and you certainly don't meet the plain jane vanilla OSA thing either.

The only advice/suggestion/idea that I have for you is.....listen to your doctor. He's the person in the best position to help you sort all this out.

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AfibApnea
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Re: Progressive sleep apnea?

Post by AfibApnea » Wed May 14, 2014 7:37 pm

I would love to see a "zoom in" set of charts looking at 14:36 to 14:40 and 15:20 to 15:24 on the May 14th data.
14:36 to 14:40

Image

15:20 to 15:24

Image
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AfibApnea
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Re: Progressive sleep apnea?

Post by AfibApnea » Wed May 14, 2014 7:59 pm

This is a lot of posts of my apnea results and a lot of information to go through.

I’m concerned that some of the fine folk that have responded share Julie’s concern that I’m not giving the “full story”.

By disclosing what I’d gone through (and logged) last night I’ve done that. Obviously, I’m going to be very interested in what the sleep study returns and what the pulmonologist says.

I really believe that if I had let myself sleep another 3 hours this afternoon that the chart would’ve continued to reflect the fairly benign results the 2-hour nap did (whether they’re really benign or not). To put it differently, I really believe that the results I’m getting in the evenings (not all evenings, but more than I’d like) might not reflect my true condition.

What I would like to see addressed by the medical practitioners I’m seeing are the OBVIOUS issues surrounding the breathing problems I experience: the nasal passages closing down due to phantom(?) congestion; the rapid mouth-outtake of breath I feel I need to make to somehow equalize my breathing pressure; the raw state of my nasal interior. Correct me if I’m wrong, but I don’t think any of these factors are directly connected with sleep apnea. (You don’t read in the literature: “If you have a stuffy nose you might have sleep apnea.”) (A friend suggested it might be due to the high pollen count, for example. I’ve never had asthma problems…)

I’m worried that the actions of the “specialists” (the pulmonologist, the cardiologist) might be guided so much by their specialty that they can't or choose not to focus first on these much more mundane issues. And I don't quite know how to have these issues expedited and addressed...FIRST.
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Various Nasal masks or Nasal pillows
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robysue
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Re: Progressive sleep apnea?

Post by robysue » Wed May 14, 2014 8:18 pm

AfibApnea wrote: 15:20 to 15:24

Image
That first waxing and waning in this frame sure looks like a pretty classic Cheyne-Stokes respiration pattern complete with the relatively LONG 20 second CA at the nadir of the cycle.

And the next cycle? There low spot is flagged as an H that I'd be willing to say is likely to be a central H rather than an obstructive one.

What I'd love to see are two things:

1) A close up of the whole periodic breathing period around 15:20 in the nap.

2) A close up of the cluster of CAs and the whole PB area in the night's data that ends located right around 2:00AM, which you believe was during a period when you were most likely sound asleep. I'm willing to bet that many of the CAs in that cluster look just like the one shown here.

If you have a lot of CAs that look like the one shown here in your data, you really need to quite resisting the idea of listening to your doc. If this kind of CAs is showing up a lot in your data, then your doc's hypothesis about emergent CA has to be taken seriously in light of your history with Afib and the data gathered from your machine.

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Re: Progressive sleep apnea?

Post by robysue » Wed May 14, 2014 9:07 pm

AfibApnea wrote:This is a lot of posts of my apnea results and a lot of information to go through.
The main pieces of information that pugsy and I have repeatedly tried to convey boil down to these two points:

1) With the history of Afib and the data you have posted, your doc's concern about emergent CA is a valid concern. And the RTs who have been seeing you and telling you "that my CPAP (software) results are good (with an occasional muffed day or two-per-month)" are NOT understanding the data if they're looking the Encore equivalent of the Sleepy Head data you've posted.

2) You need to listen to your doctor and work with him to figure out
  • whether you really have emergent sleep apnea---i.e. take the sleep test the doc has recommended and trust him when he tells you his impression about what the results indicate; and
  • accept a presription of an ASV machine if your sleep doc does indeed diagnose you with some form of central sleep apnea or complex sleep apnea or emergent sleep apnea.
I really believe that if I had let myself sleep another 3 hours this afternoon that the chart would’ve continued to reflect the fairly benign results the 2-hour nap did (whether they’re really benign or not). To put it differently, I really believe that the results I’m getting in the evenings (not all evenings, but more than I’d like) might not reflect my true condition.
This is something that you ought to discuss with your sleep doc. Nap sleeping (even long naps) is not quite the same as night sleeping. We don't get into as much Stage 3 sleep and we don't tend to have as long of REM cycles.
What I would like to see addressed by the medical practitioners I’m seeing are the OBVIOUS issues surrounding the breathing problems I experience: the nasal passages closing down due to phantom(?) congestion; the rapid mouth-outtake of breath I feel I need to make to somehow equalize my breathing pressure; the raw state of my nasal interior. Correct me if I’m wrong, but I don’t think any of these factors are directly connected with sleep apnea. (You don’t read in the literature: “If you have a stuffy nose you might have sleep apnea.”) (A friend suggested it might be due to the high pollen count, for example. I’ve never had asthma problems…)
The congestion may or may not be connected to less than optimized humidifier settings on your PAP machine. You can (and should) play around with the humidifier settings. Since you are currently using very low humidifier settings, it may be worth turning the humidifier up some. Too little humidification leads to congestion too. A heated hose that can be set to a fixed temp, like 72 degrees might let you get more humidity while not adding too much heat.

But in my humble opinion, the "rapid mouth-outtake of breath [you] feel [you] need to make to somehow equalize [your] breathing pressure" may very well be connected to some of the breathing problems that your doc is describing as emergent central apnea. What you are describing is NOT normal breathing with a PAP. And that may be one way your unstable breathing is manifesting itself. It sounds to me like your difficulties on exhaling through your nose have nothing to do with the nasal congestion but have a lot to do with a sensation of not being able to fully exhale against the pressure. And not being able to exhale fully against the pressure MAY be leading to the CO2 levels starting to fluctuate enough to trigger the problems with central apnea and periodic breathing that are clearly present in the data you've shown us.

You need to report the rapid mouth-outtake of breath breathing pattern to your pulmonologist. If you cannot fully exhale comfortably against 5-8 cm of pressure, then switching from an APAP with A-Flex to a genuine bi-level machine of some sort with both an IPAP and EPAP pressure may significantly increase your comfort and fix the rapid mouth-outtake of breath breathing pattern by making it much, much easier for you to fully exhale against your EPAP pressure.
I’m worried that the actions of the “specialists” (the pulmonologist, the cardiologist) might be guided so much by their specialty that they can't or choose not to focus first on these much more mundane issues. And I don't quite know how to have these issues expedited and addressed...FIRST.
Right now the data that you've posted clearly demonstrates that your current APAP settings are NOT doing much of anything to treat your sleep apnea problems. Fixing the "mundane" stuff is NOT going to change the fact that there's something seriously amiss with the current APAP settings. And so even if the mundane stuff was all magically made better, you'd still be feeling pretty lousy if the central apneas continue to be a problem beause your doc is correct and you have central apnea of some sort.

Fixing the ineffective pressure settings may very well require you to switch machines. But if a genuinely effective set of settings for a BiPAP, BiPAP ST, or BiPAP ASV can be found, it may actually then become easier to fix the mundane stuff. Once the settings are optimized to where it is possible for you to get some high quality sleep at night, you may find that it will be easier to breathe with the (probably new) machine, and that may (all by itself) fix the rapid mouth-outtake of breath breathing problems. Once exhaling with the machine does not require you to do the exhalation puffs, it may be easier to figure out a better setting on the humdifier to help with the congestion problem.

To draw a very crude analogy: It's like you've got a serious laceration on your hand that needs medical attention NOW, but you are focusing on the discomfort of having hangnails on your fingers, and you're hoping that alleviating the hangnails will fix the laceration.

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AfibApnea
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Re: Progressive sleep apnea?

Post by AfibApnea » Wed May 14, 2014 9:41 pm

Thanks. Here are the shots per robysue's request.

I know I've been posting a lot of screenshots. I hope that this thread might be able to be used by others as some sort of tutorial connected with looking at Sleepyhead data... Besides being very useful to me, it's my first experience with PhotoBucket. (By the way, if I remove the photos from PhotoBucket will they be removed from these posts?)
1) A close up of the whole periodic breathing period around 15:20 in the nap.
Image
2) A close up of the cluster of CAs and the whole PB area in the night's data that ends located right around 2:00AM, which you believe was during a period when you were most likely sound asleep. I'm willing to bet that many of the CAs in that cluster look just like the one shown here.
Image
ResMed Air Curve 10 ASV w. humidifier

PR S1 REMstar 60 Series BiPAP ASV Advanced & PR S1 with humidifier
Various Nasal masks or Nasal pillows
Software:

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Pugsy
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Re: Progressive sleep apnea?

Post by Pugsy » Wed May 14, 2014 9:52 pm

Yes, if you remove the images from Photobucket the images will also be removed from this thread and we would see a little box that says "sorry, this image has been removed or moved"

BTW...these recent zoomed in images just reinforce what I said
"listen to your doctor and do what he says"
There's something potentially very serious going on here and it needs to be followed up on with your doctor and I don't for one minute think that fixing a mundane stuffy nose is what is needed to fix this potential issue.

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Last edited by Pugsy on Thu May 15, 2014 11:01 am, edited 1 time in total.
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Re: Progressive sleep apnea?

Post by robysue » Wed May 14, 2014 10:36 pm

AfibApnea wrote:Thanks. Here are the shots per robysue's request.

Image
This figure is shows exactly why I think your doc is on to something when he says he thinks you have central apnea of some sort.

Look at it: There's a very clear and very regular waxing and waning pattern to the breathing and at the nadir of the cycle? At every single nadir there's an event scored. Most of the time the machine scores a CA. But there's a high probability that every single event in this 35-minute long close up is actually a real central apnea or central hypopnea. The only surprise here is that only part of this breathing pattern was flagged as "Periodic Breathing".

Remember you think you were asleep at this time. So it's hard to blame this on sleep/wake/junk (swj). Besides, swj probably wouldn't be this regular: In this 35 minute period your breathing is waxing and waning in cycle that is roughly one minute long. And at the nadir of each and every cycle there's enough of a drop in airflow that lasts long enough to be scored as an event.

So in this 35 minute long period you had a total 32 events. And each event lasted at least 10 seconds long. So that's a total of 320 seconds of little or no breathing. So you weren't breathing (or close to not breathing) for not quite 5 1/2 minutes in these 35 minutes AND the problem was NOT a collapsing airway. No, the problem more likely that your brain was forgetting to send a signal to breath about once a minute for 10 seconds or more at a time since most of the events are scored as CAs and there's such a clear periodic breathing pattern.

That's what the problem your sleep doc is worried about looks like. And to fix it may very require an ASV with carefully titrated setting.

And in my opinion the close of the nap seems to show the same kind of 1 minute long waxing/waning breathing pattern but it hasn't gotten out of control: The nadirs of the cycles are not so low as to be central apneas except for the one CA scored at roughly 15:21. You may have simply gotten "lucky" here---just after the CA and H are scored, your breathing manages to stabilize and you start breathing more normally. But during this time frame, your breathing was unstable enough to be at risk of deteriorating into a series of centrals similar to the data posted from the night.

_________________
Machine: DreamStation BiPAP® Auto Machine
Mask: Swift™ FX Nasal Pillow CPAP Mask with Headgear
Additional Comments: PR System DreamStation and Humidifier. Max IPAP = 9, Min EPAP=4, Rise time setting = 3, minPS = 3, maxPS=5