Congratulations!
The AMA is a powerful force, they like to keep "cures" under their wing, and fight tooth and nail to make sure that things that help people heal, but can't be done by them, don't happen. DH healed a brain tumor (not malignant, but growing so fast he was "given" 6 months by the diagnosing MDs if he didn't have THEIR treatment) with diet (even more strict than macrobiotic), juicing, enzymes, and hyperbaric chamber treatments. He paid it ALL out of pocket, and no one that he saw was allowed to officially know why he was there, as "cancer" can only be treated by oncologists, not anyone else. You'll noticed that there are more and more cancer care places that include the "alternative" therapies, along with pure eating, etc etc, and they have good cure/healing rates...but they don't allow you to just skip the western medicine. Gotta have it all, can't just go with the "alternatives" there.
Heck, the AMA continues to pay money to the chiropractic schools after losing a huge antitrust case where it was proven that the AMA as an entity was blackballing MDs who "allowed" their patients to see DCs... The AMA made DOs in America nothing more than MDs who *might* think about doing osseous manipulations.... They are powerful, and won't let things they don't understand into the realm of "cure" here in America. They just dno't like "healing" from within.
I have no idea what your brother had done (though I was rooting for him!), I'm just responding to your wondering why America doesn't allow the procedure....