Elderly MSK Neuro PPT Flashcards
(231 cards)
who treats parkinsons
only a specialist with expertise in movement disorders
First line Tx for PD with motor symptoms affecting QOL
levodopa
treatment of PD with motor sx not affecting QOL
Dopamine agonist (non-ergot derived), levodopa or monoamine oxidase B (MAO-B) inhibitor
Best PD drug for motor sx
levodopa
which PD drug best improves QOL
levodopa
motor comps w PD drugs
> more motor side effects: levodopa
less motor se: dopamine agonists and MAOB inhib
which PD drug class has the most SE
dopamine agonists e.g. excessive sleepiness, hallucinations, impulse control disorders
PD - if the patient continues to have symptoms despite levodopa treatment od has developed dyskinesia ->
add dopamine agonist, MAO-B inhibitor, or COMT inhibitor as an adjunct
dopamine agonists for PD - considerations
> more off time reduction
intermediate risk of adverse events
more risk of hallucinations
MAO-B inhib for PD - considerations
> improves ADL
off time reduction
less SE and lower risk of hallucinations
COMT inhibitors for PD
> Improve QOL
off time reduction
more side effects but lower risk of hallucinations
amantadine and PD
Does not improve motor symptoms and no evidence in imp ADL
there is a risk of… with PD drugs
acute akinesia or NMS if a medication is not taken or absorbed e.g. GE, do not give a drug holiday
when to be cautious of an impulse control disorder for PD
> Dopamine agonist
history of impulsive behaviours
history of alcohol and smoking
excessive daytime sleepiness w PD ->
do not drive. Adjust meds to control symptoms, modafinil can be considered as alt
if there is persistent orthostatic hypotension with PD, what can be gien
midodrine
? Should be considered for excess secretions with PD
glycopyrronium bromide
what is levodopa prescribed w
> decarboxylase inhibitor eg. Carbidopa
prevents peripheral conversion of levodopa to dopamine outisde of the brain reducing SE
Comm side effects of levodopa
> dry mouth
anorexia
palps
postural hypotension
psychosis
end of dose weaning off - levodopa
> end-of-dose wearing off: symptoms often worsen towards the end of dosage interval. This results in a decline of motor activity
on off phenomenon - levodopa
‘on-off’ phenomenon: large variations in motor performance, with normal function during the ‘on’ period, and weakness and restricted mobility during the ‘off’ period
dyskinesias at peak dose - levodopa
dyskinesias at peak dose: dystonia, chorea and athetosis (involuntary writhing movements)
what to do if a patient on levodopa is admitted to hospital
- do not acutely stop levodopa
- if they cannot take it orally, give a dopamine agonist patch as a rescue medication
PD - dopamine receptor agonists e.g.
e.g. bromocriptine, ropinirole, cabergoline, apomorphine