I would agree with Larry and seek some other opinions. One of the main reason some doctors recommend against radiation at younger ages is that the data only goes back 10-15 years. They know the data on surgery for 30+. No one really knows the effects and results in the future so one looks at the past.
Only FYI for those researching.... GammaKnife (GK) stems back over 40 yrs (developed in the mid to late 60's), thus, there is a track record of AN radio treatments data that is available for the distance. The stats are especially good, noting overall success rates in the time. For the "newer" AN radio treatments, yes... they haven't been around as long as GK but initial stats in overall success rates are available. Steve's post above also noting what Dr. Medbery has shared on the CK forums (please note that Dr Medbery is truly well versed on GK and CK, having performed both for a number of years). Again, this is only "fyi" for those following along......
For Leleh's question regarding age.... I had my CK in my mid-40's. In balancing out the pros and cons to having radiation done, for me.... the pro's won out. I can get cancer from smoking, pollutents in water... and even genetics (some here know that I already have a curable form and not related to my AN CK). We know that many treating dr's will note the "cancer scare tactics" as many are truly not familiar with the current AN radio-treatments available (ie: they are not going to promote what they are not familiar....). My AN did shrink, as noted on my recent films and as confirmed by my team (pre-CK, the AN was "kissing" my brainstem... now it is not).
Regrowth can occur, regardless of treatment choice (surgical, noting PattyUT's recent issues of regrowth after intial surgical process or radio, as with StoneAxe after his Proton treatment, etc.), thus, it is pertinent for all AN'ers to continue with head MRI's for the long haul... as there is always a potential for a cell to be left behind (regardless of treatment choice) and it is up to us, as AN'ers, to keep this in the back of our minds (but not to let it consume us) as we do run the risk.
I did have temp vertigo approx 4-6 mos post CK, which was controlled by low-dose, short term use (approx 2 wks) Valium. There have been discussions on the CK forums re: short term use of Valium to help the vertigo post-CK. I know of a few that used it (myself included) and it did seem to help. There are also vestibular exercises that can be done to help the cause as well.
Now, for all that I wrote.... please note that "individual results may vary". For me, I have done very well with CK.... I know of some that have not (enhanced hearing loss, balance issues, etc). I share here only what my "experience" has been.. and some education (that is backed up by other AN'ers as well as treatment teams, such as Dr. Medbery). For those researching CK (or other forms of radio-treatments for AN's), I hope my experience notation helps with the research process... but, as known here, I truly do respect all treatment decision processes and final outcomes for all those here and continue to send my wellness wishes to all.
Ok, I had coffee this am....