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J Korean Neurol Assoc. 2001;19(1):52-55.
- Five Cases of Primary Writing Tremor
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Sang Su Kim, M.D., Young Seok Park, M.D., Jong Kuk Kim, M.D., Jae Woo Kim, M.D.
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Department of Neurology, Dong-A University College of Medicine
- 원발성 서진 5예
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김상수, 박영석 ·김종국 ·김재우
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동아대학교 의과대학 신경과학교실
- Abstract
- Primary writing tremor is considered to be a task-specific tremor occurring when handwriting. We describe the clini-cal 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 contrac-tions 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 prima-ry writing tremor might be a variant of essential tremor.J Korean Neurol Assoc 19(1):52~55, 2001Key Words : Primary writing tremor, Essential tremor, EMG
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