If no treatment is helpful to fight depression, a brain implant may help. But it can take long duration to show the benefits of the implant. According to the researchers of Washington University School of Medicine in St. Louis, the vagus nerve stimulators (VNS) showed some positive signs within three months. The researchers also analyzed both, the brain changes and mood improvements in the patients at the same time.



The FDA has approved the vagus nerve stimulator for use in patients with severe treatment resistant depression last year. The implant discharges tiny electrical pulses and motivate the brain. However, experts are not completely aware that how it helps to reduce depression. Earlier, the electroconvulsive therapy (ECT) had also been experimented but produced short-lived benefits.



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