How do you counsel patients on the cognitive effects of DBS for Parkinson's disease?

Cognitive effects after DBS procedures are multifactorial.

Many times, patients are affected by Parkinsonian motor manifestations, such as dyskinesia or tremor, and treating these problems successfully with DBS and subsequent medication adjustments can help substantially with cognitive performance. ...

Cognitive decline has been reported after DBS surgery for PD. I counsel patients considering DBS surgery for Parkinson’s disease that a decline in verbal fluency is the most commonly reported cognitive side effect of DBS surgery, while inconclusive and mixed evidence exists for DBS's impact on other...