Trepidation, not Trepanation

I am a few hours away from my first invasive surgery. I don't count the removal of my wisdom teeth as invasive, but I am sure there may be a dentist who corrects my concept. I am having a procedure performed for an umbilical hernia. The surgeon stated in the pre-op consultation that the record is six and a half minutes for the procedure. I'd settle for ten minutes. Just felt like sharing my day with each of you.