[Vagus Nerve Stimulation for Depression].

Vagus nerve stimulation (VNS) is used for treatment of refractory epilepsy and depression, particularly in western countries. In our country, VNS is covered by insurance for treatment of refractory epilepsy. In this study, we discuss the findings of previous studies that have reported VNS for depression, based on a history of VNS. Additionally, we have briefly described the mechanisms underlying the effects of treatment options used for depression.