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Vagus nerve stimulation (VNS) is a medical treatment that involves delivering electrical impulses to the vagus nerve. It is used as an add-on treatment for certain types of intractable epilepsy , cluster headaches, treatment-resistant depression and stroke rehabilitation.
The 1st recorded use of electrical stimulation for pain relief goes back to 46 AD, when Scribonius Largus used torpedo fish (electric ray) for relieving headaches. [47] In the late 18th century, Luigi Galvani discovered that the muscles of dead frog legs twitched when struck by direct current on the nervous system. [ 48 ]
Vagus nerve stimulation therapy improved the symptoms of treatment-resistant depression for nearly 500 participants in a major clinical trial.
“The vagus nerve is the main motor nerve in the GI tract, so it controls motility, but it’s also a sensory nerve so it can affect pain,” says Dr. Thomas Abell, a professor of ...
This type of vagus nerve stimulation device was approved for treatment-resistant depression nearly two decades ago by the US Food and Drug Administration, but did not become widely available ...
The procedure to implant a vagus nerve stimulator is very safe: no case of death related to VNS implantation surgery has ever occurred. Infection of the tissue pocket in which the generator is located that requires antibiotic treatment occurs in around 3% of patients. [58] [59] The most common side effect is hoarseness or change in voice ...
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