Paroxysmal Dyskinesia

Synonyms:

a.k.a. paroxysmal dystonia

General points:

There are two subtypes:

  • Kinesiogenic paroxysmal dystonia
  • Non-Kinesiogenic paroxysmal dystonia

Kinesiogenic paroxysmal dystonia:

Diagnosis:

Precipitated by sudden movements
Lasts <5 minutes, recurs up to 100/day

Treatment:

Carbamazepine CBZ, Phenytoin PHT

Non-kinesiogenic paroxysmal dystonia (formerly paroxysmal dystonic choreoathetosis, Mount–Reback syndrome):

Diagnosis:

This condition is DYT8 a form of genetic dystonia

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