Patient dx'd w/non-alzheimer's dementia in mid-2010. now in late stage. what is the rate of development of this illness on this pt?

Dementia: Usually alzheimers dementia is about 3 years mild, 3 years moderate and 3 years severe, non alz dementia could be anywhere from 6 months to 5 years depending on the cause generally.

Difficult to Say: Most people are diagnosed already in the moderate stages. From diagnosis most live about 12 years. You mention blood pressure so there may also be some vascular dementia mixed in. If health is otherwise ok, this individual could have a fair amount of time. Usually, when people stop walking & feeding them selves, they are near the end. Hope this helps. No matter what, make every day count!