thanks for replying.
We have learned a bit more. There are different target areas for dbs depending on what symptoms need relieving. It seems that bilateral dbs does carry a risk of cognitive impairment and, as we get older, our brain function is usually reduced, so older folk can’t take a risk of losing any more cognitive ability. It was described like if you have the iq of Stephen Hawkins then you can lose a chunk and still be better than average, but if you’re average iq, the consequences of losing some would be detrimental.
My husbands next step is psychological assessment to determine his brain power. If he’s the second mr Hawkins he may have the option of bilateral, otherwise it’s one side aimed at stopping his right side tremor. He does joke that he’s going to go round in circles!
We will find out more as we go along I’m sure. X