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Tourette syndrome (TS) is characterized by phonic and motor tics and psychiatric comorbidities including attention-deficit (± hyperactivity) disorder (AD/HD), obsessive-compulsive behavior (OCB), anxiety, depression, and others.1 The efficacy and safety of deep brain stimulation (DBS) in movement disorders are established, and their applicability to neuropsychiatric conditions is expanding. We describe the results of bilateral DBS of the globus pallidus interna (GPi) in a 16-year-old boy with severe, medication-refractory TS.
Patient history.
This left-handed boy presented at age 15 years for evaluation of escalating TS. Tics began at age 3, OCB by age 5, and AD/HD, coprolalia, copropraxia, and loud screaming by age 7. Haloperidol, pimozide, fluphenazine, benzodiazepines, guanfacine, selective serotonin reuptake inhibitors, tetrabenazine, and botulinum toxin injections (vocal cords) failed to relieve symptoms, including touching and grabbing others, self-gagging until emesis, eye poking, facial self-excoriations, self-hitting, and screaming until hoarse. Anxiety, depression, hyperactivity, and impulsivity were notable, while inattention and opposition were less problematic. His marked academic and social impairment prompted consideration of DBS surgery.
Methods.
Neuropsychological evaluation assessed suitability …
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