Side effects of deep brain stimulation (DBS) may include:
- Tingling sensation (paresthesia)
- Temporary worsening of the patient's disease symptoms
- Speech problems like whispering (dysarthria), and trouble forming words (dysphasia)
- Vision problems (double vision)
- Dizziness or lightheadedness (disequilibrium)
- Facial and limb muscle weakness or partial paralysis (paresis)
- Abnormal, involuntary movements (chorea, dystonia, dyskinesia)
- Movement problems or reduced coordination
- Jolting or shocking sensation
- Numbness (hypoesthesia)
- Déjà vu (corrected by surgically revised lead placement)
- Irritating cough with stimulation on
Your doctor can provide more information about these and other potential side effects. Many side effects related to stimulation can be managed by adjusting the stimulation settings. Several follow-up visits may be needed to find the best stimulation settings.
Potential Implant Procedure Risks
Implanting the Activa® DBS System carries the same kinds of risks associated with any other procedure on the brain.
Risks may include:
- Paralysis, coma, and/or death
- Bleeding inside the brain (stroke)
- Leakage of fluid surrounding the brain
- Seizures
- Infection
- Allergic response to implanted materials
- Temporary or permanent neurological complications
- Confusion or attention problems
- Pain at the surgery sites
- Headache
Your doctor can provide more information about these and other risks that may be applicable to your specific situation. Additional information can also be found in the Activa DBS Patient Manual, available through Medtronic or your doctor. You can also read Important Safety Information about risks and adverse events by clicking here.


