There are various areas for inserting the electrodes. The site of insertion depends upon the disease. The site will be different for essential tremor and Parkinson’s disease. The factors that decide the site include the most severe symptoms the patient is experiencing, the dose of levodopa the patient is taking, and the side effects of medications. Following are some of the areas of the brain for electrode insertion:

Globus pallidus internus: Insertion of electrodes in this area reduces the shaking movements. It helps in lowering the dosage of medications.
Subthalamic nucleus: Insertion in this part of the brain reduces the symptoms of Parkinson’s disease.
Pedunculopontine nucleus: Insertion of electrodes in this area causes gait freezing.
Thalamus: Inserting electrodes in the thalamus provides relief from tremor.
Thalamus and Pedunculopontine nucleus are not the preferred areas for electrode insertion.

Precautions After Deep Brain Stimulation Surgery
The patients should strictly follow all the instructions of the surgeon. Do not use heat during physical therapies. The device may interact with high-voltage machines. So, stay away from these machines. While playing contact sports while wearing this device, the patient should protect it from impact. The high impact may alter the functioning of the device.

Risk Factors Of Deep Brain Stimulation Surgery
Like other surgeries, deep brain stimulation surgery also has certain risks. These are:

Bleeding
Infection
Clotting
Seizures
Nausea and vomiting
Vision, speech, and balancing problems
Headache
Confusion
Light-headedness
Stroke
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