I have been told I have mild ectasia of the basilar artery. I suffer with migraine and my father has multi infarct dementia. Should I be concerned?

Ectasia . Watch for risk factors e.g. High blood pressure, high cholesterol, diabtes, over wt, exercise regularly no smoking stay physically and mentally active mediteranian diet, curry powder is supposed to help prevent dementia.
Yes-live healthy. Keep perfect blood pressure don't smoke keep cholesterol as low as possible treat any diabetes aggressively excercise and u should do well.