Jeanne,
I had vestibular testing done at Mass Eye & Ear in Boston prior to choosing radiation. I'm still not sure how helpful it was. My Radiologist didn't think it was necessary, but the Neurologist wanted to rule out any other cause for the balance issues.
My balance symptoms were classic to the AN, but I wouldn't have know that except for reading other people's experiences on this forum. I went ahead with the testing in the hope of establishing a baseline for the nerve damage.
I found that none of the ENT's I consulted even understood or cared about the vestibular test results. Eventually, after radiation, when I was working with a vestibular physical therapist, she found the test results fascinating and used them to design a PT program for me, with the high hope of measuring improvement.
However, because I chose radiation, the tumor showed swelling at 6 mos. - yet, my balance improved, so apparently the theory of the brain compensating must be true.
So maybe my point is: not to let vestibular test results sway you from whatever treatment you choose, including W&W.
Ruthie