Atrial Fibrilation and T3

[silviageci]

I have a Heart Arrythmia, and was put lately on 10mcg daily because I was taking amiodarone, which is a medication that prevents T4 to convert on T3, and I also Just changed doctors for my Arrythmia, they are called Electrophysiolists, and this new one said that the lack of T3 coud have been my problem with the Arrythmia (the previous one thought T3 caused Arrythmia), this new one thinks that Endocrine imbalace (Hypo or Hyper) are proarrythmic. Has anyone both conditions and could give me some info about how his o her problems are managed? Thank you

[Hidden]

Hi - I too have arrhythmia - a family thing in my case - and T3 gave me terrible palpitations. Finally I was sent to an NHS endo who took me off T3 (he gave me the option on remaining on it as I have other -autoimmune problems so I chose to stop myself) and increase my dose of Levothyroxine - which was all I wanted but GPs overreacted to suppressed TSH! The excessive palpitations calmed down within 24 hours and have never returned apart from when I’m flaring with other condition.

[silviageci in reply to Hidden]

I am having the oposite reaction, I was only on T4 and having Aflutter, because of the Amiodarone that does not let T4 to convert into T3 I was becaming very hypo, symptoms and lab tests showed it, so I started with a low dose of T3, and immediately the aflutter stopped, I was asked to stop amiodarone for my next ablation, at least for two months, but this new EP I am going now, said that it could happen that the aflutter would stop due to hypo being well treated, I was shocked, because my last EP did not want to even hear about T3, and this new says that Hyper as much as Hypo cause heart arrythmia, I think that the clue is the correct dose. Thank you for sharing your experience.

[Hidden in reply to silviageci]

Most people here seem to be more like you. My Hashimoto’s is secondary to Sjögren’s so maybe different.

[silviageci in reply to Hidden]

I see, may be that´s the difference