Providing expert diagnosis and
management of neurological disorders
in adults and children.
VNS requires that a battery just larger than a quarter and tiny leads (wrapped in silicone) be implanted under your skin.
Your doctor may turn on your VNS device just after your surgery or may wait for your follow-up visit. He or she will program the device to produce electrical pulses on a 24-hour schedule. You will be shown how to trigger the electrical stimulation with a magnet when you feel a seizure coming on.
Each time the VNS battery generates energy, that energy is sent through the leads and electrodes into the vagus nerve and on to your brain. The electric energy prevents some seizures and makes others less severe.
Typically, a VNS battery lasts about 6 years. Typically, replacing the battery is a simple procedure that requires only 1 incision. The device can be reprogrammed if your doctor decides to change the schedule of stimulation.
Generally, VNS is not used for people younger than 12 or people whose seizures can be controlled by medication. Often, brain surgery is recommended before VNS.