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Lingering fatigue: trust Resmed sleep report?
#31
RE: Lingering fatigue: trust Resmed sleep report?
(08-14-2019, 10:14 AM)gcritchley Wrote:
(08-14-2019, 09:56 AM)mesenteria Wrote: I don't see anything that stands out, although your minute vent and tidal volume figures at the median level are less than my own.  
 just considering the above - do you know what these two figures mean and how they are arrived at, and how to get them lower?

Tidal Volume represents the amount of air you inhale or exhale with each breath.  If you multiply that by the number of breaths you take every minute (respiratory rate), you get Minute Ventilation (or minute volume, depending on who you ask).  

Mesenteria was noting that yours seems low, so you wouldn’t be looking to lower it even more.  The implication is that you MIGHT be breathing very slowly or taking very shallow breaths, which could lead to low oxygen saturation levels and morning headaches or daytime fatigue, among other things.  There is a range (like for all other measurements) that would be considered normal, with the typical range being between 5-8 liters for Minute Ventilation while resting.  Lots of clear airway events could be one cause also, since that could result in a lower respiration rate.

I am absolutely not commenting on your situation, since I am definitely not an expert on these things - just wanted to pass on the definitions.
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#32
RE: Lingering fatigue: trust Resmed sleep report?
I just looked at your OSCAR report - your respiration rate is higher than normal and your tidal volume is lower, so it looks like you are breathing quickly, but taking very shallow breaths.

Neither one is hugely out of whack though, so I doubt it is something to worry about.  Normal respiration would be 14-18, and tidal volume would be around 500ml.
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#33
RE: Lingering fatigue: trust Resmed sleep report?
(08-14-2019, 11:29 AM)WhyMe Wrote: I just looked at your OSCAR report - your respiration rate is higher than normal and your tidal volume is lower, so it looks like you are breathing quickly, but taking very shallow breaths.

Neither one is hugely out of whack though, so I doubt it is something to worry about.  Normal respiration would be 14-18, and tidal volume would be around 500ml.

thanks for that - what would one do to remedy this if it gets worse?
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#34
RE: Lingering fatigue: trust Resmed sleep report?
(08-14-2019, 11:35 AM)gcritchley Wrote:
(08-14-2019, 11:29 AM)WhyMe Wrote: I just looked at your OSCAR report - your respiration rate is higher than normal and your tidal volume is lower, so it looks like you are breathing quickly, but taking very shallow breaths.

Neither one is hugely out of whack though, so I doubt it is something to worry about.  Normal respiration would be 14-18, and tidal volume would be around 500ml.

thanks for that - what would one do to remedy this if it gets worse?

I don’t mean to sound trite, but it would depend on what was causing the problem, so if It were me, I would probably go see my doctor if I thought I had a problem.  Remember though, normal for you may not be the same as the so-called normal range.  For example, my resting heart rate is low enough to count as bradycardia, but it is not causing any real problem for me even though it is well outside the “normal” range.

I’m sure one of the long-time experts here will have better info for you though.
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#35
RE: Lingering fatigue: trust Resmed sleep report?
The 500 ml normal value is for a 5'10'' man. You need to adjust the value for your height. The normal value per kg (ideal weight) is 6 or 7 ml/kg. There are charts on the internet to find the value fitting your height.

For instance, I'm 5'8'' and my expected tidal value is 410 ml which match the value I'm getting on Oscar.
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#36
RE: Lingering fatigue: trust Resmed sleep report?
(08-14-2019, 11:53 AM)alexp Wrote: The 500 ml normal value is for a 5'10'' man. You need to adjust the value for your height. The normal value per kg (ideal weight) is 6 or 7 ml/kg. There are charts on the internet to find the value fitting your height.

For instance, I'm 5'8'' and my expected tidal value is 410 ml which match the value I'm getting on Oscar.

I'm 5'10" - my tidal volume is often (max) in the 700/800's - what can be done about that? wondering if this is the issue.

I don't have a sleep doc I'm working with - The one that did the sleep study said I don't even need to treat...but i bought my machine used, and tweaked it myself.
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#37
RE: Lingering fatigue: trust Resmed sleep report?
Are RERAs caused by the same obstructive opening issue as sleep apnea. I've been on mine 2 years, and have a lot of RERAs, but low AHI. Pressure was just raised, which is making my leak rate super high, and my tiredness is getting worse......
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#38
RE: Lingering fatigue: trust Resmed sleep report?
(08-14-2019, 12:32 PM)theres126 Wrote: Are RERAs caused by the same obstructive opening issue as sleep apnea. I've been on mine 2 years, and have a lot of RERAs, but low AHI. Pressure was just raised, which is making my leak rate super high, and my tiredness is getting worse......

Hi there126 - a quote found online - A RERA is an event characterized by increasing respiratory effort for 10 seconds or longer leading to an arousal from sleep but one that does not fulfill the criteria for a hypopnea or apnea.

..so yes, RERAs could definitely cause fatigue. May I suggest you start a thread on that topic? I want to make sure my thread stays focused on my OP if possible. That would also help others with that thread being more easily searchable - thanks!!
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#39
RE: Lingering fatigue: trust Resmed sleep report?
Hi,
looking at these your three general views of your graphs, I strongly suspect you are in serious  trouble with Flow Limitation, causing great sleep disruptions and awekenings. Could you plot some 2-min details during increased pressures, just to make sure is that?
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#40
RE: Lingering fatigue: trust Resmed sleep report?
(08-14-2019, 01:58 PM)mper6794 Wrote: Hi,
looking at these your three general views of your graphs, I strongly suspect you are in serious  trouble with Flow Limitation, causing great sleep disruptions and awekenings. Could you plot some 2-min details during increased pressures, just to make sure is that?

sure, coming in a moment - thanks!
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