When a patient has drug-resistant epilepsy, sometimes called refractory epilepsy, and other conservative treatments fail to control one's seizures, surgery or the implantation of stimulation device are the next best options.
There are three types of stimulation devices for epilepsy. In all types, the devices send electrical signals to the brain to prevent the electrical bursts that cause seizures.
The vagus nerve stimulator (VNS) is implanted under the skin, near your collarbone. A wire (lead) under the skin connects the device to electrodes attached to the vagal nerve that goes to your brain. The doctor programs the device to produce weak electrical signals that travel to your brain at regular intervals to prevent seizures.
Brain stimulation therapies for epilepsy