Abstract
Tourette syndrome is a rare neuropsychiatric disorder affecting the cortico-striato-thalamo-cortical system. The disease manifests in childhood with tics and various psychiatric comorbidities. Cases of refractory Tourette syndrome are valuable candidates for functional neurosurgery. The thalamic centromedian-parafascicular complex is an experimental target that shows a promising role in Tourette syndrome deep brain stimulation, due to pathophysiologic evidences. We have shown on a long term follow-up, that thalamic deep brain stimulation, targeted on the centromedian-parafascicular complex, could modulate motor (i.e. tics) symptoms and owns a putative effect on various psychiatric aspects. Non-responding psychiatric symptoms could be due to the aberrant developmental environment of young Tourette patients more than disease itself. Centromedian-parafascicular complex is intriguingly embedded in motor, associative and limbic pathways and should be further investigated in his role for neuromodulation of human movement and behavior.
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