Alzheimer's W2 Flashcards
most common causes of dementia?
Alzheimer’s disease (60-70%)
vascular dementia (10-20%)
frontotemporal dementia (10%)
parietal lobe cognitive symptoms?
apraxia - impairment of visuospatial and motor abilities
dyslexia
dyscalculia
frontal lobe cognitive symptoms?
executive dysfunction (complex tasks, planning ahead)
altered behaviour, personality
expressive dysphasia (problems with expressive aspects of language)
temporal lobe cognitive symptoms?
mood changes
episodic memory loss
agnosia
prosopagnosia (familiar faces)
receptive dysphasia (difficulty comprehending language)
cause of alterations of behaviour and personality
degeneration of prefrontal cortex
causes of mood changes
amygdala damage
causes of episodic memory loss
hippocampal atrophy
which lobes does Alzheimer’s typically affect
temporal and parietal
commonest form of motor neuron disease?
ALS (amyotrophic lateral sclerosis)
which areas does ALS affect
motor strip in frontal lobes, brain stem
which areas does lewy body dementia affect
cerebral cortex, hippocampus, brainstem
which areas does parkinsons disease affect
midbrain, basal ganglia
which areas does MS affect
CNS, brainstem, spinal cord
ADLs meaning and examples
activities of daily living
feeding, personal care, eating, dressing, toileting
Alzheimer’s onset?
gradual onset
Alzheimer’s symptoms?
deficits in
short term memory
language
praxis
visuospatial
executive functioning
mean disease duration in Alzheimer’s disease?
5-15 years
what is anosognosia?
lack of recognition of disease
pathophysiology of alzheimers? - 1
abnormal insoluble amyloid protein fragments
intracellular deposition of tau
pathophysiology of Alzheimers? -2
amyloid plaques
neurofibrillar tangles
brain atrophy
factors that contribute towards Alzheimer’s pathophysiologically?
mitochondrial dysfunction
TAU hyper-phosphorylation
amyloid plaques
cholinergicinsufficiency
hormonal imbalance
oxidative stress
neuro-inflammation
what features do atrophied parts of the brain in Alzheimer’s have?
memory
language
behaviour and personality
structured multi-domain tests for cognitive assessment?
ACE-III
MoCA
ECAS
MMSE
Cantab mobile
domain specific cognitive assessments?
verbal/category fluency
clock drawing
immediate recall
early disease features of Alzheimer’s (2-3 yrs after diagnosis)
memory, visual-spatial deficits, mild problems with executive functioning
moderately severe stage of alzheimers features? (3-6 yrs after diagnosis)
aphasia and apraxia
increased assistance with ADLs
neuropsych symptoms (paranoia)
advanced stage features of alzheimers? (6-12 yrs after diagnosis)
language disturbances
agitation and aggression
muscle rigidity, gait disturbances, incontinence, swallowing problems
memory enhancing drugs?
cholinesterase inhibitors - inhibit breakdown in acetylcholine, therefore more available to stimulate neurons