Deep brain stimulation (DBS) improves overall quality of life and social functioning in patients in earlier stages of Parkinson’s disease, according to results of a two-year clinical trial. The study, led by Günther Deuschl, a professor at Christian-Albrechts-University in Kiel, Germany, and Yves Agid, a professor in neurology and experimental medicine at the Hôpital de la Salpêtrière in Paris, France, is reported online in the New England Journal of Medicine on 14 February
