Vagus nerve stimulation is a relatively simple procedure, and the cost of the procedure is not expensive. The cost of the procedure is mainly from the cost of the stimulator and medical high-value consumables such as electrodes, plus the cost of surgery, anesthesia, and follow-up treatment after the procedure, which is about RMB 80,000-100,000. Vagus nerve stimulation is used for drug-refractory epilepsy. It does not cure the epilepsy, but only reduces the amount of epilepsy drugs and the frequency of seizures. The procedure is as follows: a small incision is made in the neck and the neck muscles are separated, the vagus nerve is exposed, electrodes are wrapped around the vagus nerve, an external stimulator is attached, and the stimulator is placed under the clavicle and under the skin so that the stimulator continuously releases pulsed current to stimulate the vagus nerve to reduce seizures.