Dementia Flashcards
What is agnosia?
Unable to interpret sensory information, eg unable to recognise faces
Screening tests in Dementia?
Blood test and CT/MRI
Can do other examinations if need be
HUntingtons
Abnormal movements (Chorea), dementia and psychriatric
Parkinsonism demential liked to what?
Lewy bodys
What causes Alzheimers?
Beta amyloid plaques and tau tangles
What can increase and decrease teh risk in alzheimers disease?
Increased risk:
-smoking, obesity, diabetes, hypertension
Decreases risk:
-cognitive reserve, exercise and diet
Temporo-parietal dementia
Alzhimers!!!
SO it inclues early memory loss, language, viospatial losses
Frontal temoparal dementia?
personality/behaviour changes.
-change in eating habits
-dysphasia
Dementia with lewy bodies?
-hallucintaions
-parkinsonism
-visuospatial issues
-excuecitive funciton issues
- fluctuations
Treatment of dementia
Holistic:
-dementia services, OT, social workers
Pharmalogical
-insomnia, depression, sometimes behaviour with antipsychotics but this can cause early death
-Alzheimers:
-anticholinesterases (cholinesterase inhibitors)
Doneepezil, Rivastigmine, galantamine
-NMDA antagonist (memantine)
-
Alzheimers treatment
anticholinesterases (cholinesterase inhibitors)
Doneepezil, Rivastigmine, galantamine
-NMDA antagonist (memantine)
What causes parkinsonism?
predominantly dopamine loss
Lewy bodies (α synuclein)
vasular parkinsomism affects legs or arms more?
legs
What are parkinson plus syndromes?
Extra complications/groups of symptoms:
-Multiple system atrophy
-Progressive supranuclear palsy / corticobasal degen
What are the genetic risk factors for parkinsoms?
LBBK2, Parkin, GBA
What environmental aspects can increase risk of parkinsons?
Pesticides might increase the risk.
Smoking and caffeine decrease the risk
Clinica diagnosis
you need BRADYKINEASEA and 1 of: rigidity, tremor and postural instability
What exacebates or relieves tremor with parkinsos?
Exacerbated by distraction, eg talking.
Relieved by action eg holding arms up.
non motor symptoms of parkinsons?
Autonomic (bladder/bowel/sexual dysfunction)
depression, fatigue, pain
loss of smell (anosmia)
Neuropsychiatric (hallucinations/cognitive issues)
REM sleep behaviour disorder
Grades on spect scan
0 = normal
1 = one reduced putamen
2= 2 reduced putamen
3 = reduced caudate
entacapoe. tolcapone and opicapone are all what type of drug?
COMT inhibitors
(used in late parkinsonism)
Selegiline, rasagiline and Safinamide are all what type of drug?
MAO-B inhibitors
Also used in late parkinsons
Ropinirole, Pramipexole amd roigotine are al what type of drugs?
Dopamine agonists
What are the psychiatric drug induced complications of dopamine agonists?
Hallucinations, impulse control eg increased sex drive in males and increased online shopping in females