Primary writing tremor: report of a case successfully treated with botulinum toxin A injections and discussion of underlying mechanism.
Primary writing tremor (PWT) is a rare motor disorder of unknown etiology, where tremor is elicited primarily or exclusively with writing. We describe a patient with PWT, present a video before and after successful treatment with botulinum toxin type A injections, and discuss a possible underlying dystonic mechanism.
Singer
Carlos
C
Department of Neurology, University of Miami School of Medicine, Miami, Florida 33136, USA. csinger@med.miami.edu
Papapetropoulos
Spiridon
S
Spielholz
Neil I
NI
D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D020821:Dystonic Disorders / Q000175:diagnosis / Q000188:drug therapy* / Q000503:physiopathology*; D004576:Electromyography; D006801:Humans; D008297:Male; D008875:Middle Aged; D009465:Neuromuscular Agents / Q000627:therapeutic use*; D016896:Treatment Outcome; D014202:Tremor / Q000175:diagnosis / Q000188:drug therapy* / Q000503:physiopathology*
D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A