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News Link • Science, Medicine and Technology

Nerve implant 'restores consciousness' to man in persistent vegetative state

• https://www.theguardian.com, Hannah Devlin

A 35-year-old man who had been in a persistent vegetative state (PVS) for 15 years has shown signs of consciousness after receiving a pioneering therapy involving nerve stimulation.

The treatment challenges a widely-accepted view that there is no prospect of a patient recovering consciousness if they have been in PVS for longer than 12 months. 

Since sustaining severe brain injuries in a car accident, the man had been completely unaware of the world around him. But when fitted with an implant to stimulate the vagus nerve, which travels into the brain stem, the man appeared to flicker back into a state of consciousness.

He started to track objects with his eyes, began to stay awake while being read a story and his eyes opened wide in surprise when the examiner suddenly moved her face close to the patient's. He could even respond to some simple requests, such as turning his head when asked – although this took about a minute.

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