Hi Darla,
I too was diagnosed with AN in the Left ear, small to medium size and retrosigmoid surgery recommended. My surgery was 12/7/07 at MGH (Mass. General Hosp). I had lost my hearing temporarily in August with some return of hearing before the AN diagnosis. Currently, I have some hearing in the left ear but it is muffled likely residual from the surgery swelling. At my follow-up appointment the end of January a hearing test will be performed.
I must admit that I had the same concerns you did regarding "keeping what you got", with regard to the hearing. But I do keep this thought up front, if I had done nothing, no monitoring, no wait and watch, no gamma knife, no surgery, eventually, I would have lost my hearing and more. Today I am one month post op, am walking daily with my golden retreiver, drove my car today for the first time since surgery, have very little dizziness and no pain. Facial and eye lid complications thankfully are not issues that I deal with. I will keep you in my thoughts as your intervention date approaches, you will do well.
Bernie