• frontierheartforum@fourthfrontier.com
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    Hi Shocktempo.
    In my case I had slight atrial fibrillation a few years ago. Had Pfizer in June. By Oct 3rd I was hospitalized with advanced heart failure with uncontrolled Afib and ventricular enlargement with 20 percent ejection fraction and a temporary stroke from a blood clot. . I am 59 years old. Doctors don’t know the cause. I asked about t…Read More

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    • Had issues with SVT before the vaccine but only after having covid, although scary my heart was always in sinus rhythm. Things were settling down so had the Pfizer jab and about 2 months later collapsed in the street with fast AF resulting in a cardio version. Struggled then with numerous ectopics. Started to feel a little better and had the…Read More

    • Yes. No heart issue prior to vaccine. A few weeks after first Moderna vaccine I had a 100% RCA blockage caused by a clot. Clot led to a STEMI. All other coronary arteries were completely clear of any plaque etc. ambulance too 5 hours so the STEMI caused quite a bit of cardiac damage that I’m now learning to live with.

    • I was diagnosed with AFIB a number of years ago. I would end up with a very fast heart beat around 170bpm. I never converted out on my own – always a cardio version. As such I have had two ablations, the original one in July 2018 and the last one (more of a touch up) in August 2021. I had COVID in April 2020 and had both Pfizer shots and booster…Read More

    • 46 male, athletic. For me, I had normal LP-a. 2 weeks after my second Moderna shot, I noted a greatly elevated LP-a. I took it several times after that, and it slowly declined back to normal after a few months. Sometime after that. I started to have some chest pains. The cardiologist, did a CAC, which was clean. I bought this device as he…Read More

    • Not ruling out the vaccine as a cause, but I’d also be looking as what else I might have changed? New meds/supplements/coffee brand and intake/etc. There’s no experimental control.

    • Hi, Patrik from Sweden here. I am also 59 years okd. I dont have your story but got Pericardit after the vaccin, in July. Just getting back in the saddle w training.

      • Hi have a past history of atrial fibrillation (54 yrs of age). My first dose was Astra Zeneca and second dose Moderna. In both cases didn’t have any issues with arrhytmias or atrial fibrillation. Will receive my booster shot next week (will most likely be Moderna or Pfizer). If I have any issues, will update.

    • Thanks for sharing your story. I had similar problems after the second Pfiser vaccine. I also started having arrythmias and I also had gastrointestinal inflammation which caused me to go into a SIBO flare which I never knew I had SIBO. I also purchased this device so that I could monitor the PAC’s that I have. I have had an echo and a cardiac…Read More

  • Hi All,

    I was wondering if anyone is here due to arrhythmias that may have potentially developed shortly after having one of the mRNA COVID19 vaccines? I had symptoms develop for the first time pretty soon after the vaccination and then worsen and change over time, and I wanted to compare notes with anyone who might also be working through…Read More

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    • I had an increase in ectopics and SVT after the pfizer vaccine

      • Interesting, but I assume you had some of these issues prior? I had AFIB for the first time ever shortly after being vaccinated, and it continued to get worse for months until I actually got COVID, then oddly, it started to improve quite a bit. All very strange stuff, and no doctor really seems to know what is going on!

        • I had ectopics before but never inappropriate tachycardia, now it varies, sometimes a 5 mile walk on flat terrain my heart rate will be between 120 and 150 bpm where as before never got above 105 bpm. Now i am getting 10 second bursts of ventricular tachycardia but my cardiologist is not too concerned as my echocardiogram shows a structurally…Read More

          • This is the same exact thing that happens to me as well. Unfortunately now i get these very scary beats where my heart almost feels like it’s slowing down like bradycardia but briefly and violently. With a burst of tech right after!

    • Greetings, yes. I had PVCs develop for first time (that i know of) 60 days after 2nd mRNA vaccine (Pfizer). So far benign. To my knowledge never had unusual ECG before. PVC burden when tested of about 7-8%. So i’m tracking this of course in hopes they will subside. Been about 6 months now. Hesitant to get booster for this reason. (Also use Kardia…Read More

      • Yes I appear to be in that category but I sense that it was just one additional stress factor on my body, not the only one.

      • Yes, I’m holding out on a booster as well until they offer a non-mRNA version, I gather Novavax may be available at some time soon.

    • yes. Got the booster yesterday and my arrythmias clearly increased in frequency and duration. Taking Tambocor to hopefully calm it down.

    • Whether or not it’s a coincidence I don’t know but I’ve experienced a similar event. The incident was 4 weeks after I received a Pfizer booster shot, my first two injections were AZ.

    • Yes. Did not have any heart issues that I know of before the vaccine. Got 2nd shot (Moderna) in May. Now get ectopic beats that I can feel multiple times per day. Had EKG (normal), ECG (normal), 2 week holter monitor (various PACs and PVCs but all <1% of total). My doctor is the chief of cardiology at the hospital I went to. He was…Read More

    • I had 2 doses of the Moderna vaccine and was totally fine. It was about 5 months later after a very stressful week that I started having crazy heart palpitations. Hundreds of them a day that were strong enough to make me feel like I had to cough. Cardiologist said they were PVC’s and nothing to be worried about. I asked about the vaccine and…Read More

      • I’ve had afib for over ten years, but it has been apparent very infrequently (every few months). I didn’t even think about my vaccinations as the potential source of a recent increase in the occurrence of symptoms (several times a week). My Doctor didn’t seem too concerned, but ordered a 2 week Zio patch that I just took off yesterday.

    • I have had shortness of breath, inappropriate sinus tach, bouts of AFib, and runs of atrial flutter ever since I got my second dose of the Pfizer vaccine in May 2021. I’m 38 and a runner that can now barely exercise because my heart rate goes past 180bpm and I feel like I’m going to faint. I am going to the Cleveland Clinic next month to get a…Read More

      • Much appreciate everyone’s comments here, sounds like there are a large number of us who may have been potentially affected. I still haven’t seen anything in the literature that hard links the vaccines to arrhythmias, only to pericarditis and myocarditis. I realize that I hadn’t detailed my own story in my original comment. I was 43 when I got…Read More

    • Hi there, I’m struggling since last June with vaccine induced arrhythmia, in fact it’s why I bought the Frontier

    • I’ve had PVCs, ectoptics, and atrial tachy for years. Had a prior ablation to reduce the burden. There aren’t many things that can help, but there are some supplements that have been life changing for me. I wont talk dosage as everyone is different, and you should always speak to a doc, but these are the three that keep me sane:

      – Magnesium…Read More

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  • Just setting up my Frontier X and my question is. Will my device pair to both my iPhone and Garmin at the same time . Or is it 1 device at a time. Thank you to anyone who can answer my question.

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    • Yes, you will be able to do this ! You can simultaneously connect with 1 Frontier X mobile application and up to 2 other HR devices during your workouts 🙂

  • Has anyone had success pairing this Frontier HRM with their Wahoo Elemnt Roam bike computer?

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  • I’m looking at the heart rate chart from my recent activity and there are numerous square symbols with a zero inside the square at the bottom of the chart. What do these represent?

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  • Will the New Fenix 7x support work with my FrontierX?

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  • Do I have to carry my phone when I run with Frontier in order for it to collect data, or does the unit store the data and sync with ap later?

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    • Hello, The unit can store data and sync with the app later on. It is not mandatory to carry the phone while you run 🙂 Only f you wish to capture GPS data, you need to carry the phone and connect the device to the Frontier X Mobile App.

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