Your minute ventilation numbers

[McSleepy]

I would like to ask you to share your minute ventilation values as reported by your machine, specifically, while in REM (best guess, but lowest plateaus). The reason is I feel I plateau too low, often at around 5L/min, especially since my vital capacity is much larger than most people (around 7L). While still awake, as I am going to sleep, my minute ventilation is more like 20-25 L/min, and then it goers through various peaks of 10-15L/min as I transition between the different levels of sleep. Articles like this suggest that during REM sleep, when the minute ventilation is lowest, it should be around 6.5L/min, and I wonder if there's something to look into there. Since it is not clear how CPAP affects the minute ventilation levels, I would like to hear what your observations are, and compare them to mine. One off-normal parameter for me is my high pressures (21cm H2O setting, with peaks over 24, as measured by my machine). Thank you in advance!



McSleepy

[ChicagoGranny]

when the minute ventilation is lowest, it should be around 6.5L/min

Normal minute ventilation is between 5 and 8 L per minute (Lpm). https://www.acepnow.com/article/avoid-a ... ntilation/

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I feel I plateau too low

What symptoms do you have that are triggering you to investigate this?

[McSleepy]

when the minute ventilation is lowest, it should be around 6.5L/min

Normal minute ventilation is between 5 and 8 L per minute (Lpm). https://www.acepnow.com/article/avoid-a ... ntilation/

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I feel I plateau too low

What symptoms do you have that are triggering you to investigate this?

The second paragraph there says 5 to 8L/min, then 6.0 to 8.4, I don't know what to think of it. The one I quoted is enough to get me alert. Well, "normal", especially as a range, is not good enough when you are at the bottom. Ranges may cover a variety of circumstances. Normal resting heart rate may be 40-100, but if you're clocking at 40 and you're not a deep-sea diver, you may want to have it checked out. I'd like to see some tendencies of people on CPAP. I don't necessarily have what you may call symptoms, but I have narrow air passages (after surgery, and after multiple ENT now claim it's fine, but I can measure it being very narrow) and with the smallest swelling, my nose gets almost plugged up, and my UARS wakes me up (which is a good thing, or I'd suffocate). I didn't really have OSA symptoms when 22 years ago I got on CPAP - I got the sleep study out of abundance of caution (after talking to a coworker), and it turned out, I needed it. I'd like to know if I need to once again start checking my SpO2 while sleeping (it's been many years), and stuff like that. So, for now, if you don't mind, I'd like to hear some user feedback.

Mc Sleepy

[Nocibur]

You're fine, don't worry about it.

[McSleepy]

You're fine, don't worry about it.

Thank you. Care to share your minute ventilation numbers?

McSleepy

[Nocibur]

mv.jpg (58.91 KiB) Viewed 1967 times

May 14 was a forgotten card. Usage bar verifies compliance!!

[McSleepy]

mv.jpg

May 14 was a forgotten card. Usage bar verifies compliance!!

Thank you, very much! I was hoping for a high-rate excerpt, but the stats are also helpful. What is the darkest green? There are four shaded areas (my ResScan only shows the three), so besides median, 95% percentile, and maximum, what is the fourth supposed to be? Your overall median is 8.8L/min, mine is 6.3L/min, that's a 2.5L/min difference. I wonder how low it dips during REM for you?

McSleepy

[ChicagoGranny]

min/median/95%/99.5%

[ChicagoGranny]

mine is 6.3L/min

As stated earlier, you're fine.