old age psych Flashcards
DSM V dementia criteria?
- multiple cog defects
- memory impairment
- at least one of : aphasia, apraxia, agnosia, executive fxn prob
- impaired social or occupational function
- decline from a previously better level of fxn
- can’t attribute to anything else and are not just delirium
most common dementia?
alzheimers
proven RFs for alzheimer’s dementia?
- age
- DS
- apolipoprotein e4 allele
likely RFs for alzheimer’s dementia?
- females
- head injury
- post menopause
possible RFs for alzheimer’s dementia?
fhx parkinsons, vascular, DS
proven protective factors alzheimers?
apolipoprotein e2 allele
possible protective factors AD?
- smoking
- NSAIDs
- oestrogen
- premorbid personality + education
genes associated with early onset AD?
presenilin
beta amyloid precursor
1st degree relative risk of AD?
15-19%
neuropathology of AD?
- diffuse atrophy
- flat sulci
- enlarged ventricles
- plaques, NF tangles, neuronal loss, synaptic loss,
where else do you see plaques>
Down’s syndrome
Neuroimaging in AD?
- CT - cortical atrophy (parietal and temporal) + 3rd ventricle dilation
- MRI - less grey matter, and reduced volume in hippocampus, amygdala and temporal lobes
- PET - reduced blood flow and metabolism in parietal and temporal
what is lexical anomia?
seen in AD
problem finding the words
what is apraxia?
prob with learned motor tasks
what is agnosia?
can’t recognise peripheral sensory stimulation and parts of body
behavioural features of AD?
- wandering
- aggression
- sexual disinhibition
- incontinence
- searching
- eating
psych features of AD?
- delusions
- auditory and visual hallucinations
- depression
- psychotic = rapid decline - survival 8yrs
signs of progression in AD?
increasing agitation
emotional outbursts
night pacing, poor sleep, wandering
terminal phase AD?
profound disorientation
double incontinent
amnestic
what are the anti AD drugs?
- donezepil, rivastigmine, galantamine - cholinesterase inhibs
- memantine - NMDA agonist - protects neurons from glutamate - may augment donezepil
_______ is useful in parkinsons dementia
rivastigmine
______ is used in vasc and mixed dementia.
memantine
_____ is hepatotoxic
tacrine
ginkgo biloba is ______
useless
poor px factors in AD
- male
2. onset
what are some cognitive tests
MMSE CAPE AMTS CAMCOG Clock drawing
cut off in MMSE is ___
24/30
MMSE screens for _____
cog dysfunction orientation memory concentration language praxis gnosis
MMSE varies due to _______
age
SE
education
verbal performance
cutoff in AMTS is ______
7-8/10
AMTS covers ______
memory
orientation
clock drawing tests _____
praxis
types of vascular dementia?
- post stroke deficits
- multi-infarct dementia
- progressive small vessel disease (binswangers)
key features of vascular dementia?
- uneven cognitive impairment
- abrupt onset, stepwise deterioration
- focal signs
- can coexist with alzheimers
key features multi infarct dementia?
- gradual onset
2. minor ischaemic episode hx
key features subcortical dementia?
- hx of HTN
- deep white matter ischaemia
- well preserved white cortex
insight in vascular dementia is ______
retained
somatic complaints in vascular dementia are _______
common eg headache and dizzy
what is lewy body dementia?
- progressive w/ parkinsonism
- fluctuating cognition with profound variations in alertness and attention
- detailed visual hallucinations
- parkinsonism
- falls, faints, loss of consciousness
- delusions
- spared short term memory and medial temporal lobes
histology of LBD?
eosinophilic intracytoplasmic inclusions
define parkinsons dementia?
where parkinsons sx >12 months before the dmenentia
define frontotemporal dementia?
- slow onset
- frontal lobe
- emotioanlly blunt
- disinhibited
- apathy
- restless
- aphasia
- personality change
onset of FTD is _____
45-65
dementia in CJD is _____
fast myoclonus cerebellar and EPS signs visual probs death in 1yr
on EEG in dementia of CJD?
periodic complexes
what is pseudodementia?
- cognitive impairment seen in psych disorders - mostly depression
what are the caine criteria for pseudodementia?
- ID in pt with 1y psych prob
- similar to features of impairment in CNS disorders
- reversible deficits
- no neurological condition