Athalamic stimulator is a medical device that can suppresstremors, such as those caused byParkinson's disease oressential tremor. It was approved for use by theFood and Drug Administration (FDA) on August 4, 1997. Installation is invasive, so it is typically only used when the tremors are incapacitating, and medication is ineffective. Typically, one or more electrodes are implanted in thebrain, withsubcutaneous leads to aneurostimulator, which may also be implanted. The electrodes stimulate the area of thethalamus, specifically the part of the brain that controls movement and muscle function.
It is notable that the presence of thalamic stimulators significantly changesECG patterns, and prevents the use ofMRI. It is sometimes regarded as a better alternative topallidotomy orthalamotomy because it is non-permanent. For optimal installation, the patient is awake during the procedure, and talks to the surgeon to find the best placement. Once in place, the device can be activated and deactivated, for improved effectiveness during the day.
Risks arising from the operation areinfection,stroke anddysarthria.
A fictional treatment of the device, out decades before the device itself, can be found in the novelThe Terminal Man.
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