This is Dr. David
I am a radiation oncology doctor.
a pacemaker inside of a radiation field would get full dose of radiation and this could cause damage to the pacemaker
I have had my dosimetrist call up St. Judes and Medtronic before on their guidelines on pacemakers and radiation exposure.
they usually give rough estimates of limits of no more than 2-3Gy worth of radiation exposure.
this means that the pacemaker has to be outside of the radiation field.
conventional whole breast radiation therapy is usually to 50Gy with a boost to 60Gy to the tumor bed lumpectomy site.
in canada, Dr. Whelans' protocol is 16 fractions to 42.65Gy to the whole breast.
partial breast fractionation is usually 38.65Gy in 10 fractions twice a day for 10 fractions in 5 days to the seroma plus a 2cm margin.
so it does matter where the surgery was done and what type of breast cancer you had and what type of radiation is allowable.
let me know if you have other questions.
if done for now, please leave positive rating of 3-5 stars so I can get credit for helping you today
we only get credit for helping clients after positive feedback
you can always reach me directly with "a question for Dr. David" in the medicine or oncology categories if you have other questions
here is my website if you need to reach me:
Thanks for using JustAnswers.com