Additional BG Pathologies Flashcards
What’s the difference between primary and secondary parkinsonisms
Primary is Parkinson’s
Secondary: BG damage secondary to something else
What’s the difference between primary and atypical parkinsonisms
atypical: less effective response to meds, progress faster, higher mortality than primary
Etiology unknown, the pathophysiology behind PSP (progressive supranuclear palsy) involves accumulation of _. protein. Among others, brainstem structures, thalamus,and _,atrophy along with astroglial cells and neurons.
tau; basal ganglia
How is PSP diagnosed? What specific MRI findings are involved? (hint: (frontal lobe, subthalamic and putamen atrophy)
early clinical exam is primary and onset typically in 60s
MRI: morning glory sign, hummingbird sign
What is PSP commonly misdiagnosed as?
depression, dementia, Parkinsonisms
What are 5 signs and symptoms unique to PSP?
early gait disturbance
rocket sign and axial rigidity
pseudobulbar affect
Mona Lisa stare
loss of eye movement/lid ctrl (esp vertical)
How is PSP managed?
not really effectively managed–sometimes dopamine, botox and antidepressants
How is the prognosis for PSP?
poor- severe disability in 3-5 yrs, mortality in 5-8.
what serious complications may arise in PSP pts?
pneumonia and falls
Describe MSA (multiple system atrophy).
a rare neurodeg dx that also includes autonomic dysfunction
What are the two subtypes of MSA and how do they differ?
MSA-P (parkinsonian)
MSA-C (cerebellar)-later onset/slower progression
they are named for which s/s present first
How is MSA diagnosed? What specific MRI findings are involved?
usually in early 50s (rarely past 70s) via clinical exam
+PET, DaTscan, MRI (hot cross bun sign of pons atrophy)
What is MSA commonly misdiagnosed as?
PD> pts don’t respond to dopamine therapy
Etiology unknown, the pathophysiology behind multiple system atrophy involves accumulation of ____with the most involvement observed in ____ (cell type)
proteins in glial cells, oligodendrocytes
The signs & symptoms associated with premotor phase MSA are sexual dysfn, urinary incontinence, OH, and ____
inspiratory stridor, REM behavior
The signs & symptoms associated with MSA are sleep disorders, oculomotor disturbance (MSA-C), antecollis, dyskinesia, and (4)?
Autonomic symptoms (esp OH), symmetric PD s/s,, coat hanger pain, Pisa syndrome,
how is MSA managed?
PD meds (temp) and used w/ caution for OH effects
potentially surgical trach for feeding with later progression
symptom management
How is the prognosis for MSA?
poor-almost half are dep in 8 years w/ mortality within 5-10 years
what serious complications may arise in MSA pts?
cardiac and respiratory failure, urosepsis and sudden death
what s/s is rarely seen in pts with MSA?
cognitive deficits
What is the average age of onset of Corticobulbar Degeneration (CBD)?
60-80 years old
women> men
Etiology unknown, the pathophysiology behind CBD involves focal ____ and ____neuronal loss –specifically in glial cells such as ____.
cortical and substantia nigra lesions; astrocytes
An MRI image of CBD would provide the appearance of “brain shrinkage” via _____
over pronounced sulci
T/F: The Cognitive impairments related to corticobasal degeneration (Dementia, AD, FBSS) tend to present later than that of progressive supranuclear palsy.
False.