My husband is 71. Has anyone else dealt with this? I'm concerned about how he will react to the surgery . He is in mid stage of frontal temporal dementia. He has recently had delusional thoughts-higher degree of agitation . His Dr. put him on Quetiapine Fumarate . Just recently with these delusional thoughts he has walked out of the house while I was cooking dinner . He thought my son called him an a**hole-NOT true. Had to call police to help find him. Took an hour and a half to finally get him into the house. Am worried he will be delusional and become agitated.