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Mild, segmental tardive dystonia with associated tachypnea

Legend: Video shows a 70-year-old man with mild, segmental tardive dystonia exhibiting irregular contractions of the corners of his mouth, asymptomatic tachypnea, and a masked facial expression. The mouth movements are dystonic in nature, and he has no other signs of a tardive syndrome. He had been treated with chlorpromazine, risperidone, and other antipsychotics for several decades. His movements developed when risperidone was changed to quetiapine. At the time of this video, the patient was taking risperidone 0.5 mg twice daily and tetrabenazine 12.5 mg twice daily.

Duration: 0:50

Associated with: CONTINUUM: Lifelong Learning in Neurology. 25(4):1081-1098, August 2019

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