dementia Flashcards
reversible cause
normal-pressure hydrocephalus
sx of normal pressure hydrocephalus
gai disturbances so wobbly like drunk
memory loss
urinary incontinece
treatment for NPH
ventriculo-periotneal shunting - drain CSF
repating CSF
lewy body dementia is a slow onset memory loss pathology ?
alpha synuclein cystoplasmic inclusions in the substantia nigra
symptoms of lewy body dementia
early impairment of attention and executive function rather than just memory loss
develops before parkinsons
visual hallucinations
Dx of lewy
SPECT - single photon emission CT
Mx of lewy
acetylcholinesterase inhibitors eg rivastigmine
avoid neuroleptics due to parkinsons
alzheimers is fast onset memory loss what are rf
age , FH, amyloid prescursor , presenillin 1,2 , downs and cuacasian
sx of alzheimers
cerebral atrophy of hippocampus and cortex
cortical plaques - type a beta amyloid protein - tau protein - neurofibiliary tangles
deficient in ACH
mx alzheimers
AChe inhibotrs eg riva, galantamine - dont use in bradycardia and they cause insomnia
memantine - NMDA receptro antagonist
fontotemporla dementia is also called picks disease = sphericla aggragation of tau
sx
ver 65
preserve memory and visual spatial skills but perosnality hcnage with cosical conduct problem
behavioru change
use ACHe and memantaine
vascular dementia commonly occurs after
a stroke
rf for vascular
stroke
increased BP, cholesterol, obese, FH, DM , smoking, cornayr heart disease , AF
sx of vascualr d
seziures, gait and memory , speech and emotions
manage underlying RF
lesions in mamillary bodies
werncikes encephalopathy
infarctions in multiple areas of brain
vascular dementia
atrophy of frontal lobe
frontotemporal dementia
lewy body demntia associated with what disease
parkinsons
amyloid plaques
alzheimers
what disease is caused by a build up of amyloid protein deposits around brain cells and tau protein tangles within brain cells.
Alzheimer’s disease
sx of werncikes encephalopathy
Wernicke’s encephalopathy presents with the classic tetrad of ataxia, opthalmoplegia, nystagmus and acute confusional state and is associated with lesions in the mamillary bodies.
alzherimers first line
donezipil
when can you not given donezipil
ecg - QT proloning
shoudl you take vit B12 levels
yes reversible cause
which dementia type is sensitive to anti-psychotics
lewy body
enlarged ventricles and absent sucli seen on CT brain scan
normal pressure hydrocephalus