I haven't had TOS surgery yet so I can't answer questions specific to your upcoming surgery. But I did want to respond to your concern about the heart palpitations....I know when I've had more minor surgeries (carpal tunnel) they would not proceed with the surgeries until after obtaining the results of ekg (ecg?) tests to ensure that my heart was okay. I assume that they will do the same for you in your pre-op testing (unless things are different in Canada?). Also, I used to get heart palpitations too but after testing it was determined they were nothing serious, so hopefully the same will be true for you.

Good luck! Keep us posted.