Harley's heart

Yes, I too was alarmed by the thread title, but I'm pleased you posted because I didn't know that dog's heartbeat is like that normally. It's good to be aware I think of anatomical/physiological differences between canine/human.
 
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Yes, I know that, but arrhythmias in humans are not normal :)
Just to add that not all arrhythmias in dogs are normal. The respiratory one is not pathological. Shame our vet went into such detail about what is we hear (the valves closing) and what a murmur is and why you hear it.

When DH told me I was so worried, I have had a very tough time lately with our cats chronic kidney disease diagnosis. He is still healthy and well but everytime I hold him I am so absolutely aware that one day, sooner than needed, he will die and I play the scene in my head over and over again.
 
What good news that Harls is ok!!!! I didn't know that about the arrhythmia either. And I am really sorry about your cat's diagnosis. :(
 

Jacqui-S

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Fife, Scotland
This is normal in humans too.
The heart beat gets faster when you breathe in, and slower when you breath out.
You can see each blip on this trace (or each complex of blip/spike/blip) is equivalent to a heartbeat or pulse.
The first three are slower as recorded on the breath out, then next three fast on a breath in, then slow then fast with in and out again.

 
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