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Atrial Tachycardia

Posted by megansims @megansims, Apr 27, 2021

I recently had a seven day event monitor show daily episodes of atrial tachycardia (50-90 episodes per day). The EP is recommending ablation. My question is related to the odd pattern that I noticed on the event report. It appears that the episodes consistently began about 5pm, peaked about midnight, and essentially stopped by 5am. For seven days, this pattern stayed consistent. It just seems odd. Is anyone aware of any circadian patterns to SVT, or any adrenal/metabolic/ or sympathetic system issue that would cause this every evening and night but not during the day? It seemed odd.

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Dana, Volunteer Mentor | @danab | Apr 28, 2021

@megansims Yes in a way I had a similar experience, not those exact hours and my issue was Ventricular Tachycardia of the lower chambers
But almost always my episodes happen between 10 pm. and 12 to 1 am. Not every single one but probably 80 % of them. And it almost always while sleeping mostly towards the end before transplant. It may have something to do with sleeping or lying down but I did also have some while driving in the earlier days. Nothing ever confirmed by medical personnel except that it appeared to be true. I do know one other aspect I learned early on in my heart issues. It's more work for your lungs to breathe lying down than sitting or standing. So it may involve something along those lines also. I'm also a cpap wearer and I do know sleep apnea does affect heart function. Have you been tested for any sleep disorders?
Blessings
Dana

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1 reply
ronbrobst | @ronbrobst | Apr 28, 2021
In reply to @danab "@megansims Yes in a way I had a similar experience, not those exact hours and my..." + (show)
@danab

@megansims Yes in a way I had a similar experience, not those exact hours and my issue was Ventricular Tachycardia of the lower chambers
But almost always my episodes happen between 10 pm. and 12 to 1 am. Not every single one but probably 80 % of them. And it almost always while sleeping mostly towards the end before transplant. It may have something to do with sleeping or lying down but I did also have some while driving in the earlier days. Nothing ever confirmed by medical personnel except that it appeared to be true. I do know one other aspect I learned early on in my heart issues. It's more work for your lungs to breathe lying down than sitting or standing. So it may involve something along those lines also. I'm also a cpap wearer and I do know sleep apnea does affect heart function. Have you been tested for any sleep disorders?
Blessings
Dana

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Thanks Dana. I too have COPS and sleep apnea also but can't wear te mask as it starts me coughing and they can't figure out why. Thankd you.

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megansims | @megansims | Apr 28, 2021

@danab Thanks for the thoughts! I have wondered about Sleep Apnea. I had an overnight oximetry test done and had a few low SPO2 events (6, I think), but not definitive enough for a diagnosis. I considered getting a message in to my Pulmonologist to see if it would be wort doing a sleep study. Thanks so much for the suggestion. I know that ablation is a pretty straightforward procedure, but I am pretty nervous about it anyway.

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