Editing Essential tremor (section)

==== Deep Brain Stimulation (DBS) ====
[[File:Adaptive Deep Brain Stimulation.png|thumb|Illustration of the placement of electrodes and stimulator of Deep Brain Stimulation surgical treatment.]]
Another invasive surgical treatment of essential tremor is deep brain stimulation (DBS). DBS is a surgical procedure that involves the placement of a permanent electrode with 4-8 contacts within the brain with connecting wires connected to a pulse stimulator implanted near the patient's collarbone.<ref name=":1" /> In the treatment of tremor, the electrodes are placed in the ventral intermediate nucleus (Vim) of the thalamus.

The pulse stimulator delivers constant electrical pulses to the target area, which interfere with activity of the target area, which has been shown to improve tremor symptoms.<ref>{{cite journal | vauthors = Singh M, Agrawal M | title = Deep Brain Stimulation for Tremor and Dystonia | journal = Neurology India | volume = 68 | issue = Supplement | pages = S187–S195 | date = 2020 | pmid = 33318349 | doi = 10.4103/0028-3886.302472 | doi-access = free }}</ref> At one year following the surgical intervention with DBS, patients showed 66% improvement and 48% improvement at 10 years.<ref name=":8" /> DBS is considered an effective surgical treatment of ET, but there are associated side effects and complications that have been reported with DBS in clinical trials, including imbalance or gait instability, dystonia, paresthesia, hemorrhage.<ref name=":7" />