other common dementias W2 Flashcards
vascular dementia - what percentage of all dementia cases?
10-40%
behavioural symptoms of vascular dementia?
memory loss
slowed thinking
depression
anxiety
locomotor problems of vascular dementia
gait disturbance
dysarthria
autonomic dysfunction
loss of executive function in vascular dementia?
problem solving
working memory
judgement
reasoning
risk factors for vascular dementia?
diabetes
hypertension
metabolic syndrome
age
stroke
genetic factors
vascular dementia treatment?
focused on risk factors, no direct treatment
frontotemporal dementia age of onset?
45-65 years
frontotemporal dementia symptoms?
behaviour and personality changes
progressive memory problems
language impairment
can be associated with motor deficits
inheritance type and rate in frontotemporal dementia?
autosomal dominant inheritance in 10-15%
affected proteins in frontotemporal dementia?
Tau or TDP 43
subtypes of frontotemporal dementia?
bv FTD and FTD-MND
progressive non-fluent aphasia
semantic dementia
bvFTD and FTD-MND symptoms?
disinhibition, compulsive or perseverative behaviour, apathy, emotional bluntness
extrapyramidal signs common
MND develops in up to 15%
progressive non-fluent aphasia symptoms?
reduced speech production
semantic dementia symptoms?
difficulty understanding words, recognising objects
dementia with lewy bodies is on a continuum with what?
parkinsons disease
pathophysiology of dementia with lewy bodies?
deposition of lewy bodies (abnormal protein deposits) throughout cortex and brain stem
difference between symptoms - dementia with lewy bodies vs parkinsons?
DLB - more prominent cognitive symptoms early on
parkinsons - more prominent motor symptoms early on
what protein are lewy bodies composed of?
alpha-synuclein
symtoms of DLB?
visual hallucinations
issues with movement
poor regulation of body functions
confusion, memory loss
sleep disorders
mood changes (depression)
treatable causes of cognitive impairment/dementia?
drug toxicity
metabolic disturbance
autoimmune/paraneoplastic encephalopathies
mass lesion (tumour, chronic subdural)
infectious process (meningitis, syphilis)
inflammatory disorders
endocrine disorders
nutritional disease
rapidly progressive dementias types?
autoimmune encephalitis
prion diseases
paraneoplastic syndromes
post-viral encephalitis
rare cases of typical dementias
dementia history taking?
patients may forget problems or have no insight
collateral history from caregiver/spouse
clues include repetitive questioning, list writing, losing items
general and neurological examination for dementia
general neurological examination
cognitive screening tests
exclusion of reversible causes
neuroimaging
screening tests for dementia?
Addenbrooke’s cognitive assessment (ACE-III)
mini-mental state examination (MMSE)
Clock drawing test (CDT)
mini-cog
time and change
7-minute screen