My fathers neurologist diagnosed my father with dementia. In her professional opinion she says it sounds like vascular dementia, although more tests are needed to be absolutely sure of the type. It’s difficult for me to understand how my father can go through many days of confusion and forgetfulness, unable to calculate, getting things mixed up, living in the past etc then all of the sudden go through periods of seeming perfectly fine. Even calculating again 😐. He angrily is asking me why I’m talking slower to him, or trying to help him out around the house. I'm so confused. What do I do when he seems perfectly normal? How do I know when to help? Do I just take my chances and get yelled out? Not sure how caretakers live this way. I would explain because he has dementia but I already know he’s in denial
Cerebral small vessel disease
Small vessel ischemic disease
White matter disease
Periventricular white matter changes
Perivascular chronic ischemic white matter disease of aging
Chronic microvascular changes
Chronic microvascular ischemic changes
White matter hyperintensities
Age-related white matter changes
Leukoaraiosis
Later my mom had her own neurology appointment and the new neurologist reviewed all her old records and also told me vascular dementia. She then had a neuro-psych eval and that diagnosis was dementia of mixed etiology.
What I have since learned, from somebody here actually, is that vascular dementia can present as you describe, one minute almost normal, then nonsense. The explanation was that depending on what vessels are being affected some parts of the brain are more damaged where other parts can still be okay. Progression happens when more damage occurs like TIA's or another stroke, but even the small vessel changes cause progression too.
Anyway not sure if all that rambling helped, I just wanted you to know I see it in my mother too. Like your father she is also in denial.
What investigations have already been done?
Geriatric diabetes impacted an extended family member, please make sure the A1C level test is included in your father's blood work.
He refuses to allow her to be tested. I'm sure she has good days and bad, but either she has some type of dementia or she doesn't. Period. It would make dealing with her a LOT easier if you could 'blame' the dementia.
This is what is puzzling me - Tiny areas of brain which are killed off by tiny strokes do not recover. That is why vascular dementia is commonly described as being characterised by "steps" - the person trundles along enjoying much the same level of function, then an element gets lost, then maybe another element soon after that, then there's another plateau of time during which nothing much changes, then... and so on and so on and so on.
What can happen after a stroke (of any size) is that the brain creates new pathways to restore a particular function, so that patients do get movement, speech, vision, swallowing back after a period of recovery, but especially if they are younger and supported by therapies. What doesn't happen in vascular dementia is the sort of "good days/bad days" ups and downs rollercoaster that is more typical of Alzheimer's Disease; and yet that's what you seem to be describing with your father.
It is true that there's a limit to how useful (not to mention certain) a precise diagnosis can be; but it's also true that there are things that are worth ruling out. How old is your father, and how long has he been ill?
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