Tourette Syndrome

DBS for Tourette syndrome is not a first-line treatment. It is reserved for carefully selected adults with severe, disabling tics that have not responded to behavioral therapy and medication, decided jointly by neurosurgery, psychiatry and neuropsychology.

Tourette syndrome is a neurological condition characterized by multiple motor tics and at least one vocal (phonic) tic, persisting for more than a year, usually beginning in childhood. Tics are sudden, repetitive movements or sounds that can be briefly suppressed with effort but tend to build in urgency until they are expressed. Many patients also experience related conditions, including attention-deficit/hyperactivity disorder (ADHD) and obsessive-compulsive disorder.

Most patients with Tourette syndrome are managed successfully with behavioral therapy (particularly a technique called habit reversal training) and, where needed, medication. Tics also often lessen naturally in severity into early adulthood for many patients. A small number of adults have tics that remain severe and significantly disabling despite thorough standard treatment; for this group, deep brain stimulation may be considered.

Severity in Tourette syndrome is not just about the number or size of tics, it also reflects how much tics interfere with daily life. Severe cases may involve tics causing physical injury (for example, forceful movements that injure joints, or self-injurious tics), tics severe enough to disrupt speech, eating, reading or work, or a level of social and functional impairment that has not responded to treatment.

A surgical evaluation for DBS is generally considered only for adult patients with a confirmed diagnosis of Tourette syndrome, severe and significantly disabling tics, and a clear history of treatment resistance; meaning that appropriate behavioral therapy and multiple classes of medication used for tic suppression have been tried without adequate benefit. DBS for Tourette syndrome is generally not considered in children, given that tics often improve with age and standard treatments have not yet been fully explored earlier in the condition’s course.

Because Tourette syndrome frequently occurs alongside ADHD, OCD, anxiety or mood disorders, a thorough psychiatric and neuropsychological evaluation is a required part of assessment; both to characterize these related conditions, which may need their own treatment, and to assess overall suitability for a lengthy surgical and programming process.

DBS for Tourette syndrome follows the general surgical process described on our Deep Brain Stimulation page: electrodes are placed in a brain target associated with tic-generating circuits and connected to a pulse generator that delivers continuous, adjustable stimulation. As with other indications, programming is a gradual process carried out over multiple sessions after surgery.

• Confirmation of diagnosis and detailed history of tic severity, triggers and treatment history
• Standardized tic severity rating
• Thorough psychiatric and neuropsychological assessment, given the frequent overlap with ADHD, OCD and mood disorders
• Brain MRI for surgical planning
• Multidisciplinary case review before any decision is made

DBS for Tourette syndrome, in carefully selected adult patients, aims for a meaningful reduction in tic frequency and severity and an improvement in day-to-day function and quality of life. It is not a cure, tics are unlikely to be eliminated completely, and related conditions such as OCD or ADHD generally require their own ongoing treatment regardless of the effect on tics. Treatment goals vary between patients, and individual results may differ.

Risks include the general surgical and device-related risks described on our Deep Brain Stimulation page. Response varies between patients, and, as with other psychiatric indications, benefit typically develops gradually during programming rather than immediately.

Programming and follow-up are coordinated between neurosurgery and the patient’s psychiatric or neurological team, with ongoing management of any associated conditions such as ADHD or OCD continuing in parallel.