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Dystonias are sustained or intermittent abnormal repetitive movements or postures due to alterations in muscle tone. The dystonia spasms may affect one (focal, e.g. blepharospasm of eyelid) or more (segmental, e.g. neck—spasmodic torticollis) parts of the body or the whole body (generalised, e.g. oculogyric crisis).

Generalised dystonia Usually drug induced, e.g. levodopa, psychotropics. Treatment: benztropine 1–2 mg IM or IV

Focal dystonias

  • Blepharospasm (uncontrolled blinking)

  • Oromandibular (jaw grinding and grimacing)

  • Meige syndrome (combination of above two)

  • Hemifacial spasms (eye spreading to face): related to facial nerve irritation

  • Cervical dystonia (spasmodic torticollis)

  • Laryngeal or spastic dystonia—strained hoarse voice

  • Hand and forearm cramps (e.g. writer’s, typist’s, golfer’s or pianist’s cramps)

Table D12Dysuria: diagnostic strategy model
Figure D14

Relative causes of dysuria in women

Treatment Injection of purified botulinum A toxin into affected muscle groups—with care. Usually repeated every 3–6 mths.

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