Yes. Oddly, my D6 was the first in our family to be diagnosed with SVT - been on a beta blocker since she was diagnosed. A few breakthrough episodes - one was pretty scary and involved a week in the CICU of our children's hospital.
Then my W as diagnosed, then MIL.
On my W, they did the mapping first, then the cauterizing. They didn't get all the spots they wanted the first time, so she got to do it again.
I'm sure it isn't fun. My W described the feeling of the procedure as hte feeling that she was swallowing rocks.
