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    Pediatr Neurol. 2007 Dec;37(6):442-5.

    Pallidal stimulation for dystonia in pantothenate kinase-associated neurodegeneration.

    Source

    Department of Neurosurgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.

    Abstract

    Patients with generalized dystonia secondary to pantothenate kinase-associated neurodegeneration are traditionally treated palliatively with medical therapy. Therapeutic advances include stereotactic basal ganglia ablative techniques and, more recently, pallidal deep-brain stimulation. We report the course of dystonia in a teenage male. Bilateral microelectrode-guided pallidal deep-brain stimulators were placed while the patient was awake. Three parasagittal microelectrodes were inserted simultaneously. Two anterior microelectrodes were relatively quiet. The posterior electrode demonstrated a pattern of frequent bursts with high-frequency activity. The stimulator was therefore placed in the posterior location, which resulted in symptomatic improvement. Pallidal deep-brain stimulation appears to create a functional correction that may alter globus pallidus internus inhibitory output to the motor thalamus. The prominent, noisy bursting patterns observed in the globus pallidus internus suggests that high-frequency stimulation may improve signs of dystonia by normalizing thalamic discharge patterns.

    PMID:
    18021929
    [PubMed - indexed for MEDLINE]

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