I'm not sure that this is related, but my horse (7 year old arab) has also
been identified as having a second degree AV blockage. I discovered this
after he won his first 60 mile ride; so I am hoping that it really isn't as
serious as it sounds. So far, he's doing great and has been for 2 years. If
there is any additional information on either condition, I'd like to hear
about it.