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Term Definition

A treatment for epilepsy using a small stimulator (similar to a pacemaker) implanted under the skin in the upper chest. The vagus nerve stimulator sends electrical signals to electrodes (wires) that are attached to the vagus nerve. From the vagus nerve the signals travel up into the areas of the brain thought to be involved in causing seizures. VNS may reduce the number and intensity of seizures in some people.

Information from the National Society for Epilepsy: Vagus nerve stimulation

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