Researchers now have better evidence that deep brain stimulation (DBS) improves the motor symptoms of Parkinson’s disease over the long term. A study in the June 20 issue of Neurology found that DBS reduced the symptoms for up to three years after implantation. DBS uses a surgically implanted medical device similar to a pacemaker to deliver electrical stimulation to areas of the brain that control movement, areas affected by Parkinson’s disease. DBS helps some symptoms very quickly, such as tremor. It also helps involuntary movements called dyskinesias. DBS helps rigidity and walking ability too, but the effect is slower.
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