The US FDA has approved the Vivistim System (MicroTransponder), a first-of-its kind vagus nerve stimulation (VNS) system intended to treat moderate-to-severe upper extremity motor deficits associated with chronic ischemic stroke. The Vivistim® System stimulates the vagus nerve while the patient is undergoing a rehabilitative movement, which tells the brain to “pay attention” to that movement. This simultaneous pairing of a specific movement with vagus nerve stimulation (VNS) strengthens motor circuits associated with the physical movement. Consistently pairing VNS with specific neural circuits helps rebuild those circuits and the brain relearns the commands to enable the muscles to perform specific tasks and can strengthen those muscles as well. This simultaneous pairing of muscle movement with VNS strengthens the neural circuits in the brain. Over time, a patient may regain upper limb function.
Source: MicroTransponder