There are so many opinions on AN.
It is true most AN's show no or limited growth, and many medical professionals consider microsurgery or radiation as overkill.
However whether your AN is treated or not hearing loss and balance problems are the norm in W&W even if your AN is NOT growing.
I did not want to lose my hearing, which was deteriorating rapidly.
My specialist recommended Watch and Wait.
I chose Cyberknife, and 4 months after treatment my hearing has actually improved to near normal.
Here are some Pubmed articles indicating that hearing loss is likely even if your AN shows no growth.
http://www.ncbi.nlm.nih.gov/pubmed/20502379http://www.ncbi.nlm.nih.gov/pubmed/10865479http://www.ncbi.nlm.nih.gov/pubmed/19730147http://www.ncbi.nlm.nih.gov/pubmed/18559034http://www.ncbi.nlm.nih.gov/pubmed/15373864Before Treatment everytime I had a tinnitus attack, a dizzy spell, or my hearing deteriorated, it was a negative experience, and created that uncertainty of having an AN.
Tinnitus was getting worse and hearing was deteriorating fast.
Now post treatment when I get a tinnitus attack or my hearing goes a bit whacko, or I stumble in the dark... do I care... NO.
Do I care if I eventually go deaf in one ear... not really.
I have done all I can, whatever happens, happens.
While early intervention may well be medically controversial, as a patient you have no certanty, and that gets a little wearing after a while.
Early intervention has allowed me to get on with my life, with my hearing intact.
I should say that watch and wait is still a very valid protocol, and depending on your AN may still be the best form of treatment.
A lot depends on your age, symtoms, size and position of your AN, and your expectations pre and post treatment.
If you are totally deaf in one ear already, your balance nerve is gone, and your AN is small... yes why not Watch & Wait.
If you are over 75... your AN probably wont grow anyway.. so Watch & Wait.
Please do your own research. I am not a doctor