Dyskinesia and dystonia Flashcards Preview

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Flashcards in Dyskinesia and dystonia Deck (17):
1

Define dyskinesia

Abnormal involuntary movements

2

List examples of dyskinesia

Tremor
Tics
Tardive disorders
Chorea
Myoclonus

3

Types of tremor

Intention - worse at end of purposeful movement

Rest - abolished on voluntary movement

4

Causes of types of tremor

Intention - cerebellar lesion

Rest - Parkinsonism

5

Describe chorea and its causes

Non-rhythmic, jerky, purposeless movements
Feature of Huntington's disease

6

Where can myoclonus arise from

Cerebral cortex
Brainstem
Spinal cord

7

Describe myoclonus

Sudden involuntary jerks

8

Cause of tardive syndromes

Chronic exposure to dopamine antagonists (antipsychotics and antiemetics)

9

Features of tardive dyskinesia

Lip smacking
Repetitive chewing
Rapid eye blinking
Tongue protrusion
Grimacing

10

Features of tardive dystonia

Opisthotonos (back arching)
Retrocollis (neck extension)
Twisting movements

11

Treatment for tardive dyskinesia

Gradually reduce dopamine antagonists
If indicated for psychosis, replace with atypical antipsychotics as less EPSE
(Tardive dyskinesia may be irreversible)

12

Define dystonia

Prolonged muscle contraction resulting in abnormal posture and/or repetitive movements

13

Cause of acute dystonia

Starting dopamine antagonists, especially metoclopramide and antipsychotics

14

Treatment for acute dystonia

Anticholinergics

15

Describe oculogyric crisis

Eyes are drawn up

16

Describe oromandibular crisis

Trismus (lockjaw)

17

What is torticollis and what condition is it seen in

Head is pulled to one side
In acute dystonia