The following is an excerpt....
BASICS
Description
- A childhood-onset neurobehavioral disorder characterized by the presence of multiple motor and at least one phonic tic (see Physical Exam section):
- Tics are sudden, brief, repetitive, stereotyped motor movements (motor tics) or sounds (phonic tics) produced by moving air through the nose, mouth, or throat.
- Tics tend to occur in bouts.
- Tics can be simple or complex; motor tics precede vocal tics, and simple tics precede complex tics.
- Tics often are preceded by sensory symptoms, especially a compulsion to move; patients are able to suppress their tics, but voluntary suppression is associated with an inner tension that results in more forceful tics when suppression ceases.
- System(s) affected: Nervous
Epidemiology
Incidence
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