Higher Sp02 when heart rate drops? (bradycardia)

[jdr999]

Hi gang,

I'm still trying to get a handle on my borderline Sp02 levels. My nightly averages are typically between 89%-92%.

Looking at my Sleepyhead data I'm noticing that my Sp02 increases during the second half of the night and when my heart rate drops down to the 40's & 50's (mild bradycardia?). I'm wondering if those two data points are related somehow. Generally it seems the higher my heart rate, the lower my Sp02. Could there be another reason?

Anyone have any ideas?

Thanks!
Joe

[Rob108]

Perhaps higher(faster) heart rate means there is less time for blood oxygenation.
Until I had ablations done my heart rate would triple instantaneously and because no useful blood flow was reaching my brain I would have a syncope with drop episode (not something I'd wish on anyone).

[archangle]

You may have it backwards.

Low SpO2 tends to cause an increase in heart rate. Maybe the SpO2 is getting higher for other reasons and that causes your heart rate to drop.

[jdr999]

A lot of leaks last night but similar. My Sp02 usually starts out on the low side and slowly increases throughout the night........

Now to find a way to consistently keep it closer to 93%-95% the entire night....?

[jdr999]

You may have it backwards.
Low SpO2 tends to cause an increase in heart rate. Maybe the SpO2 is getting higher for other reasons and that causes your heart rate to drop.

Possible. My heart rate is always higher when I first lay down and decreases as I relax. I could check my levels before laying down just to confirm.......

Perhaps higher(faster) heart rate means there is less time for blood oxygenation.
Until I had ablations done my heart rate would triple instantaneously and because no useful blood flow was reaching my brain I would have a syncope with drop episode (not something I'd wish on anyone).

Afib? Has xPAP therapy helped?