jws-mds.20605.mpg13643K Segments 2 and 4 from the manuscript are shown Segment 2. Writing, pouring, or using a spoon in Patient 2 triggers proximal and axial flurries of myoclonus. After receiving 3 g sodium oxybate, the amplitude and frequency of the jerks are diminished and the movements are more fluid. Segment 4. Patient 4?s examination before treatment reveals a classic kinetic tremor with writing, using a spoon, and drinking. After 2 g sodium oxybate, tremor amplitude is markedly diminished. This video presentation has been abbreviated. The full version will appear on theMovementDisorders DVD Supplement, which is issued bi-annually.

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