Essential tremor is the most common movement disorder and is often refractory to medical treatment, Deep brain stimulation in the thalamus has proved the efficiency for these patients. However, this treatment has risks associated with an open neurosurgical procedure. MR-guided focused ultrasound has been developed as a non-invasive means of generating precisely placed focal lesions. We examined its application to the management of refractory essential tremor. Satisfactory results were found that the mean reduction in tremor score of the treated hand was 86.7% at 1 month and 72.5% at 3 months, what’s more,no adverse events lasted beyond 3 months.
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