He refuses to talk to the neurosurgeon. I found out my Dad has a 70% blockage in his carotid artery. I have explained to him what the risk is and he refuses to go talk to the neurosurgeon. He is aware and in his right mind but I worry that I haven't done enough to get him to understand. He will soon be 89 and doesn't not want to have the procedure done. Am I doing the right thing?