J Korean Neurol Assoc.  2001 Jan;19(1):52-55.

Five Cases of Primary Writing Tremor

Affiliations
  • 1Department of Neurology, Dong-A University College of Medicine.

Abstract

Primary writing tremor is considered to be a task-specific tremor occurring when handwriting. We describe the clinical and electrophysiological features of 5 patients. Two of the patients had a family history of the tremor. Alcohol was effective in reducing the tremor in 3 of the patients. Two patients showed a co-contraction and three alternate contractions between agonist and antagonist muscles. The frequency of the tremors was 5 to 6 Hz. Primidone and propranolol were effective in reducing tremor. Considering the clinical and electrophysiological features, it is suggested that primary writing tremor might be a variant of essential tremor. (J Korean Neurol Assoc 19(1):52~55, 2001

Keyword

Primary writing tremor; Essential tremor; EMG

MeSH Terms

Essential Tremor
Handwriting
Humans
Muscles
Primidone
Propranolol
Tremor*
Writing*
Primidone
Propranolol
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