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Adult onset tic disorders.

S Chouinard¹, B Ford

¹Department of Neurology, University of Montreal, Quebec, Canada.

Journal of Neurology, Neurosurgery, and Psychiatry

|May 16, 2000

Summary

Adult onset tic disorders are more common than previously thought and often present with similar characteristics to childhood onset cases. New onset adult tics may be secondary to external triggers like infection or substance use.

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Area of Science:

Neurology
Neuroscience
Clinical Medicine

Background:

Adult onset tic disorders are rarely documented, with most cases being secondary to acquired conditions.
Idiopathic adult onset tic disorders are infrequently reported, often being recurrent childhood cases.

Observation:

A retrospective review identified 22 patients with tic disorders presenting after age 21.
Nine patients had a history of childhood tics, while 13 had new onset adult tics.
Six new onset cases were secondary to external triggers (infection, trauma, substance use).

Findings:

Adult onset tic disorders are more common than appreciated.
Clinical characteristics, course, and prognosis are similar between adult recurrent and new onset tic disorders.
New onset adult tics are more likely to be symptomatic or secondary.

Implications:

Adult onset tic disorders are an underrecognized neurological condition.
This study highlights the clinical features and potential causes of adult tic disorders.
Findings support the continuum of tic disorders from childhood onset to Tourette's syndrome.

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