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Tere63, May 21,  2021  1:49pm EST

New onset of AFib with RVR


I woke up with an onset of AFib on Tuesday morning. Spent the last 3 days in the hospital. I had a Cardioversion scheduled for Wednesday but went back into normal rhythm on my own about an hour before the procedure.  Left the hospital on Eliquis ( 5mg 2x per day) and Metropolol (25mg 2x per day) but no answers. I am 58 and otherwise healthy. I did have my 2nd Moderna COVID vaccine the Thursday afternoon previous to the onset of AFib. The Doctors hinted this could be the culprit but simply don't know. 

Is anyone else out there hearing about a correlation between the COVID vaccine and AFib?

8 Replies
  • AHAModerator
    AHAModerator, May 21,  2021  4:01pm EST


    Thank you for sharing your story with the MyAFibExperience community. I am glad that you are here and hope you find the support and answers you're looking for. I'm sorry that you've had to spend some time in the hospital recently, but hopefully you are now on the road to recovery. Unfortunately, I am not a medical professional so I can't speak to any correlation between the COVID vaccine and AFib but I can provide you with this resource on Lifestyle Changes you can make to focus on reducing your risk of AFIb. I suggest you take a look around the Support Network for other stories on COVID vaccine-related incidents that might be similar to yours.

    Please keep us updated on how your health progresses.


    AHA Moderator 

  • Thumper2
    Thumper2, May 22,  2021  8:38am EST

    Tere63, sorry to hear of your Afib episode.  Was it your first?  As to whether the COVID shot might have triggered it, I doubt there's a clear answer to that!  But I hope you are seeing an electrophysiologist (EP), i.e., a cardiologist whose specialty is treating AFib.  Atrial fibrillation is such a multi-faceted problem that we all need such a specialist to discuss our options with us.  I hope you will not opt to "live with"  Afib.  Years ago (I was not seeing an EP) I was just taking meds, had few symptoms, but my heart was gradually deteriorating, and it was finally in such bad shape that certain options, such as cardioversion and ablation, did not work for me (long story).  As for my COVID (Pfizer) shots, I am in permanent AFib, my husband is in managed AFib, and neither of us had any reaction to the vaccine.  We took naps afterward, but at our age, that's a normal thing!  Let us know how things are going for you.

    Thumper2 (Judy)

  • pacots
    pacots, May 22,  2021  9:42am EST

    The same thing happened to me after my 2nd dose of moderna the next day I went into afib. Went to the dr. he said the shot more than likey was the reason. My afib lasted one day then I went into normal sinus rhythm. 

  • DkinAA
    DkinAA, May 22,  2021  9:02pm EST

    Was this a new thing for you, or an episode of previously diagnosed paroxysmal (intermittent) afib? Some people here have commented that they've had an episode after getting the second dose of Moderna or Phizer. I did, although I'm on pretty effective anti arrhythmia meds, and had frequent "breakthrough" episodes for the next few weeks. I can see how a vaccine might do that, since inflammation is part of an immune response, which can be an afib trigger. I would do it again, because a Covid infection would almost certainly be a lot worse! 

     I don't know if afib is a documented vaccine side effect though - lots of people here weren't affected, and for many of us, just the stress of these hard times have probably triggered episodes. 

  • higashinaka
    higashinaka, May 23,  2021  12:57am EST

    I have had Afib for about 6 years and have been managing it with meds until two weeks ago. The afternoon of my second Covid vaccine moderna, my afib started and continued for about 10 days. It was a stronger afib than what I normally get. My electrophysiologist suspects it may have been the reaction to Covid vaccine. The frequency of afib events increased even after that so I have decided to have an  Ablation and completed two weeks ago.  I was getting afib for a few days after the ablation but doctor said that is not uncommon. I am now afib free for a week, hoping this will continue. If you are brand new to Afib, it must have really scared you. This community is a good place to get information and support. Good luck!


  • Tere63
    Tere63, May 23,  2021  10:31am EST

    Thank you all for reading my story and offering your support and guidance. Yes, this was the first time I had experienced AFib. It was very scary. 
    I am now on the search for an electrophysiologist. 

  • Patio7
    Patio7, May 26,  2021  8:32am EST

    I have had afib for a few years, and yes, went into a long and unusual episode ( five days)  a few hours after my second Pfiser covid shot. Thankfully I reverted to normal just as I was being scheduled for my Cardioversion.  When I saw my EP I was told the patient prior to me had same experience and that they were seeing more examples similar.  I still was thrilled to have my vaccine and will risk the booster, if it comes.

  • Thumper2
    Thumper2, May 31,  2021  8:40am EST

    Tere63, glad you're looking for an EP.  Our "Fearless Leader," Mellanie True Hills, recommends the following:  

    "The best way to find a local EP is to search at the Heart Rhythm Society (the EP medical society) at https://www.hrsonline.org/find-a-specialist"

    I also recommend her site, StopAfib.org, and the upcoming (virtual) conference with specialists from all over the world, GetinRhythmStayinRhythm, in early August.

    Keep us posted!

    Thumper2 (Judy)

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