Parkinsonism and Movement Disorders Flashcards
What are the 4 classical features of Parkinsons
Bradykinesia
Rigidity
Tremor
Postural instability
Additional features Parkinsons (10)
Micrographia Abnormal gait Hypomimia Anosmia Dysphagia Depression Dementia Drooling/dribbling saliva Urinary incontinence Disturbed REM sleep
What is hypomimia
Expressionless/mask like face
What are the 6 types of Parkinsons?
Idiopathic Parkinsons Vascular Parkinsonism Dx induced Parkinsonism Lewy Body dementia Progressive Supranuclear Palsy Multi-system Atrophy
Features suggesting Idiopathic Parkinsons Disease (5)
Unilateral onset Upper limb predominance Tx responsive to Levodopa Presenting w/ bradykinesia Clinical course 10y or >
Features suggesting vascular Parkinsonism (6)
Lower limb predominance Bilateral onset PS w/ falls + gait problems, change in voice, cognitive deficits early Stepwise rapid progression Poor response to levodopa Atherosclerotic RF
Dx induced Parkinsonism features (2)
Hx of being on antiP or antiemetics
Resolves when drug is stopped
Features suggesting Lewy Body dementia (3)
Prominent cog impairment PS at same time as PD
Prominent hallucinations
Fluctuations in consciousness level
Features suggesting progressive supranuclear palsy (3)
Eye signs - vertical gaze palsy
Cognitive impairment w/ frontal disinhibition
Not responsive to dopaminergic Tx
Features suggesting multi-system atrophy (3)
Prominent autonomic features - orthostatic HoTN, incontinence, importence, difficulty reg body T Cerebellar signs -ataxic dysarthria Reduced loudness/breath support Fatigue Weak/hoarse quality of voice Not responsive to Tx
Features that reduce the likelihood of Parkinsons (9)
Young age Bilat Sx @ onset Positional/intentional tremor Stepwise progression Arms spared Cognitive decline @ onset Repeated strokes/head injuries/encephalitis Cerebellar signs Babinksi's sign
Gait abnormalities PD
Slow to initiate
Shuffling
Festination
Freezing
Which pathway of the brain is particularly affected in PD
ML pathway (substantia nigra) Dopamine
Appearance of PD on a PET scan
Normal = comma appearance PD = looks like a full stop
Prevalence Parkinsons >80
2%