Vagus Nerve Stimulation (Epilepsy Pacemaker)

VNS is not a magic device that eradicates epilepsy. Its aim is not to completely eliminate seizures; but to dramatically reduce the frequency and severity of seizures, as well as the patient's dependence on medication (and drug side effects). While it stops seizures completely in some patients, it provides an improvement of 50-70% in others.

No. Unlike deep brain stimulation (DBS) surgery, the skull is not opened, and the brain is not touched in VNS application. Only a small battery is placed just below the collarbone, and an electrode (wire) is wrapped around the vagus nerve on the left side of the neck. It is a very low-risk surgery that takes an average of 1 hour.

Yes. The VNS device already sends continuous signals to the brain at regular intervals. However, the patient is given a special "Magnet (Wristband)" along with the device. When the patient or their relative feels a seizure approaching (aura sensation), they pass this magnet over the pacemaker on their chest, giving the pacemaker an instant shock (extra stimulus) and can instantly prevent that seizure from occurring or ensure it passes very mildly.