Hyperkinetic movement disorders

Question 1

classic presentation of huntingtons

Answer 1

chorea, dementia, caudate degeneration

Question 2

dystonia: what is it, some examples

Answer 2

sustained but not fixed muscle contraction causing involuntary movements. writers cramp, blepharospasm

Question 3

hemiballismus: what, lesion

Answer 3

sudden flailing of one arm +/- ipsilateral leg. Contralateral subthalamic nucleus (lacunar stroke)

Question 4

athetosis: what, lesion

Answer 4

slow, writhing movements (esp in fingers). Basal ganglia (eg. huntingtons)

Question 5

chorea: what, lesion, meaning

Answer 5

sudden jerky movements. basal ganglia. Dancing

Question 6

intention tremor

Answer 6

slow, zigzag motion when extending toward a target. cerebellar dysfunction

Question 7

essential tremor: when do you see it? relieved by?

Answer 7

action tremor. EtOH. Use beta blockers ad primidone