HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
159 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

Can Hyperthyroidism Cause Bradycardia?

I was diagnosed with sinus bradycardia 2 weeks ago with pulse dipping to 38. I m undergoing tests including stress echo and holter monitor for 2 weeks. Cardiologist s office called and said it went down to 38 again and had a pause so they re referring me to an electrophysiologist. My PCP changed my thyroid medicine (levothyroxine) from .137 mcg to .100 several mos ago. Labs were done Friday and my TSH is .01, T4 is 10.1 and T3 is 85. Can thyroid be affecting my heart rate?
Thu, 29 Dec 2016
Report Abuse
Cardiologist 's  Response
Hi
throid can be afecting hear rate only in hypothyroid persons once the throid functionreturns back to normal, tsh does not effect the heart rate , 38 /min is a very low heart rate , you should get 2 24 hour holter test to see pauses, in heart beating .
Holter monitor is a portable device for continuously monitoring various electrical activity of the cardiovascular system for at least 24 hours (often for two weeks at a time).If there is a pause in beating of heart it will be recorded in it
thank you
I find this answer helpful

Note: For further queries related to coronary artery disease and prevention, click here.
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in


Recent questions on Thyroid disease


Loading Online Doctors....
Can Hyperthyroidism Cause Bradycardia?

Hi throid can be afecting hear rate only in hypothyroid persons once the throid functionreturns back to normal, tsh does not effect the heart rate , 38 /min is a very low heart rate , you should get 2 24 hour holter test to see pauses, in heart beating . Holter monitor is a portable device for continuously monitoring various electrical activity of the cardiovascular system for at least 24 hours (often for two weeks at a time).If there is a pause in beating of heart it will be recorded in it thank you