Deep Brain Stimulation

Topics: Parkinson's disease, Deep brain stimulation, Medicine Pages: 2 (520 words) Published: December 10, 2012
Viktoria Garcia
1st period
Deep Brain Stimulation

Deep Brain Stimulation (DBS) is considered a surgical treatment alternative for patients who are affected by long term complications of Parkinson disease. Parkinson's disease is a chronic disease of the brain characterized by gradually worsening tremor, muscle rigidity and difficulties with starting and stopping movements. The complications of Parkinson’s disease can include those such as trouble with motor functions and losing the ability to speak. At this current time the procedure of deep brain stimulation is used only for patients whose symptoms cannot be adequately controlled with medications. Approximately 30,000 patients have been treated thought the world with Deep Brain Stimulation for Parkinson Disease and other conditions.

Deep Brain Stimulation uses a surgically implanted, battery-operated medical device called a neurostimulator. A neurostimulator is similar to a heart pacemaker and approximately the size of a stop watch. The neurostimulator delivers electrical stimulation to specifically targeted areas in the brain that control movement. Electrical nerve signals generate the awful symptoms of Parkinson Disease. The neurostimulator works by blocking the abnormal nerve signals that cause tremors and Parkinson Disease Symptoms.

Before the procedure, a neurosurgeon uses magnetic resonance imaging (MRI) or computed tomography (CT) scanning to identify and locate the target area within the brain. Generally the target areas in the brain are thalamus, sub thalamic nucleus, or Globus Pallidus.

The DBS system consists of three components: The lead, the extension, and the neurostimulator. Each of these structures consists of two parts; one on the left hand side of the brain and one on the right.The lead is a thin insulated wire that is inserted through the small opening in the skull and implanted in the brain. The extension is an insulated wire that is passed under the skin of the head, neck, and...
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