Annals of Indian Academy of Neurology
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Year : 2009  |  Volume : 12  |  Issue : 1  |  Page : 28-34

Fine motor skills disorders in the course of Wilson's disease

1 Clinic of Neurology, University of Leipzig
2 Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University of Leipzig
3 Clinic for Psychosomatic Medicine, University of Leipzig
4 Department of Neurology, Paracelsus Clinic, Zwickau

Correspondence Address:
Wieland Hermann
Abteilung Neurologie, Paracelsus Klinik Zwickau, Werdauer Straße 68, 08060 Zwickau

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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-2327.48849

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Objectives : Fine motor skills disorders belong to the neurological manifestation of Wilson's disease. The aim of this study is to investigate if fine motor performance changes during the course of the disease and with therapy. Methods : In 15 neurological patients with Wilson's disease, severity of neurological symptoms was assessed with a neurology score. A test battery consisting of the hand writing of a test sentence, lines of "double-l" and retracing a circle was carried out for analysis. By means of a computer-aided analysis of the patient`s handwriting, 10 kinematic parameters of the writing trace were calculated. These parameters were determined once at the very beginning of the study and then again after 7 years. Results : Improvement of clinical symptoms was observed after onset of therapy only within the first 2 years. In contrast to the standard population, a reduced degree of automation could be detected both at the beginning and at the end of the 7-year interval. There was no significant change in 8 out of the 10 kinematic parameters during the observation period, 2 deteriorated. Discussion : The absence of a significant increase in fine motor disturbances proves, on the one hand, the efficacy of the therapy regime applied. On the other hand, the end point of a possible reversibility had been reached. A computer-aided analysis of the patient`s handwriting allows for a sensitive detection of the "functional scar" in the extrapyramidal control and can subsequently prompt a timely correction of therapy in case of progression.

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