Are Bradycardia ang hypothyroidism linked?

[JuliaGemstar]

I do have a slow heartbeat and have been diagnosed with A Fib and Bradycardia. I also have hypothyroidism which seems to be under control, but I wonder if the two may be linked in some way.

[Happyrosie]

as a non medical person. Yes I think so.

I believe there’s an active thyroid group here on Health Unlocked, worth a visit?

[JuliaGemstar in reply to Happyrosie]

Thank you. Will check this out.

[MikeM46]

Yes, hypothyroidism is indeed linked to bradycardia. Lots of literature there to google such as …

physoc.org/abstracts/bradyc...

Assuming you are being treated for hypothyroidism the key test needed is your FT3 level. FT3 is the free to circulate in the bloodstream T3/liothyronine active hormone vital for heart function. If you’ve had thyroid tests such as TSH & FT4 done, these might have very ok looking levels, but neither are active hormones and c 10% of hypo patients can’t respond well to levothyroxine because their body can’t convert it to the active T3 liothyronine version So going by TSH & FT4 results Drs can end up thinking Everything is fine when in fact the body & very much the heart is being starved of vital T3/liothyronine hormone.

Join the Thyroid group on HU to enquire about FT3 & DT testing availability issues.

[JuliaGemstar in reply to MikeM46]

Very interesting, thank you. I will check this out.

[Mitchum in reply to MikeM46]

The problem is, GPs don't want to know about T3 and will not prescribe it, saying that it's not necessary but, really it's down to the cost!

[JuliaGemstar in reply to Mitchum]

Hi - Thank you. my latest test results are : FREE T3 - 4.6, FREE T4 15.5, TSH - 0. 82.

My GP was happy with that.

[fishonabike in reply to JuliaGemstar]

i can't interpret your results but the "normal range" is a statistical device based on averages - by definition many people are not average, their personal normal is above or below the average but (just) within "normal range" - but they are treated as "normal" which means that many people might not get relevant treatment

for the average body temperature is 98.6 F (37 C), normal body temperature can range between 97 F (36.1 C) and 99 F (37.2 C) or more. My average body temperature is 36.2C, so if i have a temperature of 37C i feel awful and would class that as pyrexia and treat it, but for many people that is a normal functioning temperature

[JuliaGemstar in reply to fishonabike]

You make a good point.

[DancingSalsaIsFun in reply to MikeM46]

Hi Mike - very interested to read your response as I also have underactive thyroid (and severe aortic valve regurgitation), which I did know could make my hear beat slower. I will certainly be looking at my thyroid results in more detail after reading this.

[SkyBluePInk47]

yes. It may depend on how severe the hypothyroidism is as to whether a person gets or or not. Definitely a more common symptom, my husband’s doctor told him about a month ago.

[JuliaGemstar]

Thank you. Hopping over to the Thyroid page to check this out.

[bee2]

I wondered that too as I have Bradycardia and lately my eyebrows are starting to disappear, I saw that this could be a symptom of hypothyroidism and asked my GP to check bloods which he said came back normal 🤔

[JuliaGemstar in reply to bee2]

My eyebrows disappeared early last year. I started eating much more protein and they are growing back. My dosage of 75mcg of Thyroxine has been the same for years. Not sure if the two were connected.

[bee2 in reply to JuliaGemstar]

My heart rate is dropping to 32bpm and I get arrhythmias, my heart seems to get slower with these where some people get tachycardia