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J Neurol Sci. 2016 Dec 15;371:85-87. doi: 10.1016/j.jns.2016.10.028. Epub 2016 Oct 19.

A prognostic factor in focal hand dystonia: typist's cramp cases and literature review.

Author information

1
Department of Neurology, Yonsei University College of Medicine, Seoul, Republic of Korea.
2
Department of Neurology, Inje University College of Medicine, Busan, Republic of Korea.
3
Department of Neurology, Jeju National University School of Medicine, 1 Ara 1-dong, Jeju-si, Jeju 690-756, Republic of Korea.
4
Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
5
Department of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Gyeonggi-Do, Republic of Korea. Electronic address: sukyunkang@hanmail.net.

Abstract

The prognosis of focal hand dystonia (FHD) remains unclear. We retrospectively studied six patients with typist's cramp in our hospitals, and five cases in the PubMed database. All of them were right-handed. We compared clinical features between simple (dystonia in only one specific task), and dystonic/progressive groups (dystonia in several and/or new tasks). The initially affected right hand ratio was significantly higher in dystonic/progressive groups than in simple group (p=0.015). Initially affected hand may be a predictor for the progression, implying that the progression may be associated with the amount of daily routine hand movements.

KEYWORDS:

Dystonia; Focal hand dystonia; Handedness; Movement disorders; Prognosis; typist's cramp

PMID:
27871456
DOI:
10.1016/j.jns.2016.10.028
[Indexed for MEDLINE]

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