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KMID : 0367320010120010103
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Journal of the Korean Academy of Child and Adolescent Psychiatry
2001 Volume.12 No. 1 p.103 ~ p.114
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CLINICAL CHARACTERISTICS OF CHRONIC MOTOR TIC DISORDER AND TOURETTE’S DISORDER
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Shin Sung-Woong
Lim Myung-Ho
Hyun Tae-Young
Sung Yang-Sook
Cho Soo-Churl
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Abstract
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Tourette’s disorder is a disease which manifests one or more motor tics and vocal tics for more than a year. Chronic motor tic or vocal tic disorders are characterized by only one kind of tics for more than a year. We intended to investigate the clinical characteristics of the patients with chronic motor tic disorders or Tourette’s disorders who had admitted from May 1, 1998 to May 1, 1999 to Seoul National University Hospital Child and Adolescent Psychiatry ward. In addition, we compared the clinical characteristics of the patients in order to elucidate the relationship between the two disorders. The patients with learning disabilities were selected as controls. There was no statistically significant difference between the onsets of the patients with chronic motor tic disorders(n=13, years), and Tourette’s disorder(n=39, years), but with learning disability( years). Also, the patients with chronic motor tic disorder and Tourette’s disorder showed similar age at admission( versus years), duration of admission( versus weeks), mothers’ ages at child birth( versus years old),and fathers’ age at child birth( versus years old). We observed that those who had learning disabilities were alike in those aspects, except for age at visit to clinic( years old). Family history of psychiatric illnesses(24.1% versus 46.2%), recognized precipitating factors(11.1% versus 35.7%) and response to pharmacological treatments(77.8% versus 76.9%) of the patients with chronic motor tic disorders and Tourette’s disorders were observed and no differences were found. Comorbid patterns of diseases were noted. Intrafamilial conflicts were more common in the patients with learning disabilities than those with chronic tic disorders or Tourette’s disorders. Precipitating factors were observed more frequent in chronic tic disorder and Tourette’s disorder than learning disability. Neurocognitive profiles were investigated, and verbal IQs of the patients with chronic motor tic disorder, Tourette’s disorder and learning disability were , , , performance IQs , , and full-scale IQs , , , respectively, which were found to be not significantly different. No difference was found in structural neurological abnormalities and EEG profiles. The patients with learning disabilities showed more common Bender-Gestalt test abnormalities. In conclusion, we have not found any affirmative clues for the division of chronic motor tic disorder and Tourette’s disorder in clinical perspective.
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KEYWORD
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Tourette’s disorder, Tic disorder, Classification, Clinical study,
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