I had the choice and was lucky enough to have a doctor (neurotologist) who did both procedures so he didn't "push" me in either direction. In fact, he refused to make the decision for me. I was hoping he would (the easy way out) and I asked him several times (was very persistent), but he was adament - telling me each time that it was a "personal decision". Although it frustrated me at the time, he absolutely did the right thing and in the end I was thankful he didn't decide for me. Today we laugh about that
I originally thought I would have radiation (gamma knife) because it seemed like such a simple procedure and I thought there was no way I could be off of work or parenting duty (single mom of twins - age 10 when I was diagnosed) for the 6 weeks recovery time he quoted me. I was also horrified by the prospect of 4-7 days in the hospital - I'd never had major surgery before; just outpatient surgeries.
But the more we talked about the follow up (regular MRIs to monitor the AN to see if the radiation was killing it) and the fact that side-effects may take 12-18 months to appear, the more I decided that I just wanted to have the damn thing out of my head and get on with my life. Another factor may have been that the day I met my neurotologist he had a patient sitting in his waiting room who was there to discuss surgery with him because her radiation had failed. Not something that happens a lot, but she was living proof that it was a possibility. And, strangely enough, the prospect of having a metal frame screwed into my skull while I was awake was appalling to me - although later I went on to have a BAHA implant with only local anesthesia while I was wide awake and that didn't phase me at all. Go figure!
My doc does retrosigmoid and translab and he let me pick my approach. I chose retrosigmoid because although my hearing was diminished I still had decent word recognition. I felt we should at least try to save the hearing I had and if we couldn't, at least we could say we tried. Long story short, my AN was wrapped around my hearing nerve, it was severed, and I ended up SSD.
IMO I had an excellent outcome. The first days in the hospital were very rough, but after that things got better. I couldn't have done it alone though because of the kids; my mom and my sister moved in with us for a period of time while I got back on my feet. My dad also helped out. I had slight facial paralysis for a day or two post op (dose of steroids cleared it up); double vision post op lasted 2 or 3 days; nausea lasted 5 - 7days; metallic mouth, dry mouth, and dry eye lasted a few months; balance issues lasted a couple of weeks; fatigue lasted a long, long time (or at least it seemed that way). I had no pain post op other than a stiff neck because it was bent for 7 1/2 hours of surgery. I've never had a headache related to my AN.
This is just my experience; everyone is different.
I have never regretted my decision to have surgery. It was the best choice for me. And although I didn't realize it at the time, it was in fact the only choice for me. My docs told me post op that my AN that measured 1.5 cms on my diagnostic MRI was at least 2x that when they did the surgery approximately 6 weeks later. My neurotologist won't radiate an AN over 3 cms so I unknowingly picked the only option I truly had.
Today I have an annual MRI which is enough for me; I wear a BAHA and am SSD, but beyond that life is the same as it was pre op.
Jan