Statistically speaking, the risk of radiation treatment causing cancer has been shown in scientific surveys to be virtually no greater than the risk to the general public for developing cancer. This statistic comes from decades of surveys by the medical community. How much more of a track record do you need?
For me, it always comes down to a numbers game. If, for example, the general consensus of consulting doctors tells me I have a greater risk -- in percentage terms -- of facial paralysis, hearing loss, balance deficit, cerebrospinal fluid leakage,chronic severe headaches or other quality-of-life-altering side effects with treatment A vs with treatment B, I'm going to go with treatment B to increase my odds of having a rewarding life after treatment. It makes no sense to me to worry about some hypothetical far-in-the-future risk not supported by scientific data and let it move me to accept a higher quantifiable risk immediately at treatment.
For example in my case, the six doctors I consulted all said microsurgery posed a 100% chance of my being completely deaf on the AN side (a sure thing) immediately following surgery, a 1 in 3 chance of permanent facial paralysis and about a 15% chance of debilitating headaches for the rest of my life. With radiation, however, I had about a 40 to 60% chance of deafness after 5 years and only a 1% chance of permanent facial paralysis (and virtually no chance of getting chronic headaches). It didn't make sense for me to accept exponentially higher risks of deafness, facial paralysis and headaches for the next 40 years of my life because I was afraid of developing brain cancer based on theoretical concerns not backed up by scientific data. It makes about as much sense to question the long-term effects of brain surgery; for example, in the case of the retrosigmoid approach, how does prolonged retraction of the cerebellum and hours of toxic anesthesia affect someone decades later?
I'm not saying radiation is always the best choice for everyone. Your consulting doctors are best qualified to tell you the risks posed by each type of treatment. But it is far better, in my opinion, to base your decision on known risks than on unknown theorized risks.
Nobody knows how long they will live. Life is a gift to be enjoyed today. Choose the treatment most likely to preserve your quality of life.
My thoughts only...
Sincerely,
TW