원발성 서자진전 A형 1예

A Case of Primary Writing Tremor Type A

저자들은 최근 글을 쓰는 자세에서는 진전이 나타나지 않고 글을 쓸 때에만 진전이 나타나는 전형적인 원발성 진전 A형을 경험하였기에 이를 보고하며, 본 증례를 통해 원발성 서자진전 A형은 표현 양상으로는 서로 다르나 병태생리적으로 서자경련과 유사한 질환임을 추정해 볼 수 있었다.

Abnormal writing can result from a large variety of neurologic disorders of motor control. Primary writing tremor(PWT) in its pure form denotes occurrence of a disabling tremor induced by writing alone. Therefore PWT is typical task-specific tremor. PWT could be classified as either type A or type B. In a strict sense, type B PWT is not pure form of PWT because it is not task specific. We describe a case of PWT type A. A 53-year-old right handed policeman complained of a 4 year history of shaking of his right hand that interfered with writing. Tremor appeared during writing but not on adopting the hand position normally used for writing.