Type of Surgery


Doctor Certified

Last updated: 02/17/2009


The most common adverse effects from vagal nerve stimulation are a hoarse voice, cough, headache, and ear pain. These side effects can be reduced by adjusting the stimulation settings, and may subside on their own over time. Infection and device malfunction...

are possible though rare.

Patients who have had a VNS implanted must avoid strong magnets, which may affect the stimulator settings. Areas with warning signs posted regarding pacemakers should be avoided. The patient should consult with the neurologist and the neurosurgeon about other hazards.




Other Information

Vagus nerve stimulation (VNS) is an adjunctive treatment for certain types of intractable epilepsy and major depression. VNS uses an implanted stimulator that sends electric impulses to the left vagus nerve in the neck via a lead wire implanted under the skin.

Vagus, the tenth cranial nerve arises from the medulla and carries both afferent and efferent fibers. The afferent vagal fibers connect to the nucleus of the solitary tract which in turn projects connections to other locations in the central nervous system. Little is understood about exactly how vagal nerve stimulation modulates mood and seizure control but proposed mechanisms include alteration of norepinephrine release by projections of solitary tract to the locus coeruleus, elevated levels of inhibitory GABA related to vagal stimulation and inhibition of aberrant cortical activity by reticular system activation

From http://en.wikipedia.org/wiki/Vagus_nerve_stimulation

Other Information

Select comparative data from 1999 to 2006 include a decrease of 14 percent in the number of neurosurgeons in private practice and a decrease of 13 percent in the number of neurosurgeons in solo practice.

From: AANS

Find a Qualified Specialist

Looking for a specialist?

Please enter your zip code.