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April is National Parkinson’s Disease Awareness Month. All this month, we will feature a series of posts addressing Parkinson’s disease symptoms, genetics, treatment options and more from NorthShore neurologist—Aikaterini Markopoulou, MD— to raise awareness about this common and often disabling neurological disorder.
By Aikaterini Markopoulou, MD What is DBS? Deep brain stimulation is a type of surgical treatment for Parkinson’s disease. It involves the insertion of electrodes into specific areas of the brain that control movement. The electrodes are connected to a battery that is placed under the skin in the upper part of the chest. Electrical current that passes through the electrode stimulates these brain areas on one side of the brain. This stimulation results in improvement of tremor and slowness or stiffness on the other side of the body.
Who is a good candidate for DBS? To be a candidate for DBS surgery a number of conditions have to be met:
Is DBS covered by Medicare? Yes, DBS is covered by Medicare. When a patient has bilateral DBS is it necessary to have two stimulators, or will one suffice? In the majority of Parkinson’s cases, symptoms affect both sides of the body; therefore, electrodes are inserted in both sides of the brain. In some cases where the symptoms affect mostly one side, the electrode can be inserted only in the opposite site of the brain. If you have DBS, how does it affect your ability to get through airport checks, metal detectors, etc.? Each patient is provided with an identification card that includes information about the implanted stimulator. The TSA agent should offer a private screening or screening with a manual wand instead of the patient walking through a metal detector. What percentage of DBS surgeries result in complications? What complications might a patient encounter? The DBS surgery may result in complications both during the implantation and after surgery, which include bleeding at the electrode insertion site that can be fatal, hardware malfunctioning, and infection and symptom worsening. In a large multicenter clinical trial, 7.5% of patients developed intracranial hemorrhage, 10.6% device-related infection and 8.1% one-sided weakness.
How long is DBS effective? Studies that have followed patients for ten years have been published and the DBS remained effective throughout the ten-year interval.
Are there any long term risks associated with DBS? DBS therapy remains a safe treatment option for Parkinson’s patients for at least ten years.