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Hyperkinetic movement disorders misdiagnosed as tics in gilles de la tourette syndrome

✍ Scribed by Katie Kompliti; Christopher G. Goetz

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
446 KB
Volume
13
Category
Article
ISSN
0885-3185

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✦ Synopsis

Abstract

Objective: To describe the gamut of movements misdiagnosed as tic exacerbations in Gilles de la Tourette syndrome (GTS) in a referral tertiary‐care center.

Background: Movements seen in GTS can be classified as: (a) tics; (b) movements related to conditions associated with GTS, specifically obsessive‐compulsive disorder (OCD), attention deficit hyperactivity disorder (ADHD), and antisocial behaviors; and (c) movements secondary to treatment.

Methods: We reviewed a videotape database and patient records from a tertiary treatment center for GTS and collected GTS cases referred for disease exacerbation who had both tics and non‐tic movements thought by the referring physician, the patient, and the family to be an exacerbation of tics.

Results: Of 373 GTS cases, 12 had movement disorders secondary to treatment, and six had non‐tic movements related to conditions commonly associated with GTS. In the former group, there were 7 patients with acute akathisia, 3 with acute dystonia, 1 with tardive chorea, 1 with withdrawal emergent chorea, and 5 with tardive dystonia. Six had movement disorders related to non‐tic conditions commonly associated with GTS: four patients had movements associated with OCD, one with ADHD and antisocial behavior, respectively.

Conclusion: There is a broad spectrum of movements in GTS that are not tics but can be misdiagnosed as tics. Clinical awareness of these movements is paramount to proper diagnosis and pharmacologic intervention.

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