How Long Can People with Lewy Body Dementia Live?

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Does this disease have any connection to Parkinson's Disease?
Parkinson's Disease can have symptom of dementia. But primary dementia  don't have  symptom of Parkinson's Disease.  
my husbands sister just died from this..... she was just about to turn 60. She got bad fast and went fast..there are many things worse than death. dementia is one of the worst things
How long did she live with it I am presently going they it with my brother
My father will be 89 years old this month. He relatively healthy physically although he has a the classic symptoms. Hallucinations, capgras, spacial visual problems,etc. He still reads, goes to church, and goes social functions outside of the home.
Hi, Karen, when was your father diagnosed with this? God bless him.
It depends. Unfortunately, there is currently no cure for Lewy body dementia (LBD). The prognosis of someone with the condition depends on multiple factors, such as age of onset, the severity of their symptoms, and their other medical conditions.
In general, the average life expectancy for people with LBD after the onset of symptoms is 5 to 8 years. However, individuals with LBD have lived anywhere between 2 and 20 years depending on the factors above.
In fact, LBD doesn’t typically progress as predictably as Alzheimer’s does. Rather, because its symptoms can fluctuate, progression may vary significantly from one person to another.
On an average approximately 5 to 8 years.
My husband 66 diagnosed dementia almost 4 years ago. 8 months ago got to much for me place in nursing home. What should expect he has been declining fast thes days. I need to be prepared what to expect.
He may suffer from several conditions that are common causes of death for dementia patients, such as aspiration pneumonia, falls, etc. These conditions would make the patient bedridden and decline very fast to death.