Q. I was diagnosed with AFib . Should I be on beta blocker?

Answered by
Dr. Sagar Ramesh Makode
and medically reviewed by iCliniq medical review team.
Published on Jun 05, 2018

Hello doctor,

I was diagnosed with AFib four months back. My heart rate was not elevated. I had controlled AFib. I went on blood thinner Eliquis for four weeks and had a successful cardioversion. I stayed on Eliquis until I met my doctor 20 days back. He took me off blood thinners and put me on beta blocker Bisoprolol (2.5 mg once per day). My blood pressure and heart rate are much lower. I am dizzy upon rising and my heart rate is only 48 sitting here at work. My resting heart rate was 60 to 65 before Bisoprolol. My blood pressure is now on average 110/70. It was 135/85 before Bisoprolol. Should I be on a beta blocker? Also, I am going on holidays in six weeks. If I have an afib attack now I have time to go back on Eliquis to thin my blood and get cardioverted again before my holiday. If I go into AFib closer to my holiday there will be no time to go on Eliquis to thin my blood to have a cardioversion and my holiday will be ruined. I am thinking that I should go on Eliquis now so that if I have an AFib attack just before my holiday I can be cardioverted right away. What do you think?

Dr. Sagar Ramesh Makode

Cardiology General Medicine Internal Medicine
#

Hello,

Welcome to icliniq.com.

I guess you must have undergone echo in order to find out the cause of atrial fibrillation.

Now, regarding your doubt, as such the risk of stroke is not high in you so blood thinners are not absolutely necessary for you. Now, if AFib is of less than 48 hours duration, then we do not need blood thinners to be started so long prior to cardioversion and we directly proceed with cardioversion with blood thinners started just before. So if you are able to access healthcare facility within this time then such long blood thinners may be avoided. Also, even if you remain in AFib throughout the holiday, it is not life-threatening.

Next thing, regarding the strategy mentioned by you, this is not approved by any guidelines or authority. But, yes, it can be adopted and no harm in that, but I or any other medical personnel cannot advise such strategy to save the holiday as there is no medical ground for that. Also, If you are planning some risky activities which may involve injuries then it will increase the risk of bleeding. So you need to consider all these factors.

For more information consult an internal medicine physician online --> https://www.icliniq.com/ask-a-doctor-online/internal-medicine-physician

Thank you doctor,

Is my heart rate okay? I feel dizzy upon rising (sometimes), but overall I feel relatively good. I seem to be more tired than usual. I have trouble staying awake on my drive home. I also do not like not being able to exercise as well. My holiday is a hiking holiday and there is a lot of climbing. I can still do it on beta blockers, but it is hard. Are the beta blockers really making a big difference in my AFib not returning?

Dr. Sagar Ramesh Makode

Cardiology General Medicine Internal Medicine
#

Hello,

Welcome back to icliniq.com.

Yes, your symptoms are due to Bisoprolol only. Resting heart rate of 48 is not dangerous and acceptable, but considering your symptoms, it is better to reduce the dose to half. Even stopping it will not make much difference. There is no substantial benefit in terms of AFib recurrence. The benefit it provides is, it prevents the excessive increase in heart rate if a fib recurs. Being on this may hamper your capacity to hike. So I would suggest reducing the dose to half, and alternatively, you may have other beta blockers like Metoprolol XR 12.5 mg once a day, which is a very mild dose and would not cause these symptoms. However, beta blockers should be available with you in case your heart rate goes up and you need to take it in an emergency. I think it is better to remain off blood thinners as you are hiking and there is a risk of fall and injury.

For more information consult an internal medicine physician online --> https://www.icliniq.com/ask-a-doctor-online/internal-medicine-physician

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