Potential Complications and Side Effects
While DBS is helpful for some patients, there is also the potential for neuropsychiatric side effects. Reports in the literature describe the possibility of apathy, hallucinations, compulsive gambling, hypersexuality, cognitive dysfunction, and depression. However, these may be temporary and related to correct placement and calibration of the stimulator and so are potentially reversible. A 2006 study of 99 Parkinson's patients who had undergone DBS suggested a decline in executive functions relative to patients who had not undergone DBS, accompanied by problems with word generation, attention and learning. About 9% of patients had psychiatric events, which ranged in severity from a relapse in voyeurism to a suicide attempt. Most patients in this trial reported an improvement in their quality of life following DBS, and there was an improvement in their physical functioning.
Because the brain can shift slightly during surgery, there is the possibility that the electrodes can become displaced or dislodged. This may cause more profound complications such as personality changes, but electrode misplacement is relatively easy to identify using CT. There may also be complications of surgery, such as bleeding within the brain.
After surgery, swelling of the brain tissue, mild disorientation and sleepiness are normal. After 2–4 weeks, there is a follow-up to remove sutures, turn on the neurostimulator and program it.
Read more about this topic: Deep Brain Stimulation
Famous quotes containing the words potential, side and/or effects:
“The traditional American husband and father had the responsibilities—and the privileges—of playing the role of primary provider. Sharing that role is not easy. To yield exclusive access to the role is to surrender some of the potential for fulfilling the hero fantasy—a fantasy that appeals to us all. The loss is far from trivial.”
—Faye J. Crosby (20th century)
“Television knows no night. It is perpetual day. TV embodies our fear of the dark, of night, of the other side of things.”
—Jean Baudrillard (b. 1929)
“The best road to correct reasoning is by physical science; the way to trace effects to causes is through physical science; the only corrective, therefore, of superstition is physical science.”
—Frances Wright (1795–1852)