Five Cases of Primary Writing Tremor.
- Author:
Sang Su KIM
1
;
Young Seok PARK
;
Jong Kuk KIM
;
Jae Woo KIM
Author Information
1. Department of Neurology, Dong-A University College of Medicine.
- Publication Type:Case Report
- Keywords:
Primary writing tremor;
Essential tremor;
EMG
- MeSH:
Essential Tremor;
Handwriting;
Humans;
Muscles;
Primidone;
Propranolol;
Tremor*;
Writing*
- From:Journal of the Korean Neurological Association
2001;19(1):52-55
- CountryRepublic of Korea
- Language:Korean
-
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
