Psychiatric considerations in deep brain stimulation for Parkinson's disease.

Deep brain stimulation targeting the subthalamic nucleus or globus pallidus internus are highly effective for the symptomatic treatment of Parkinson's disease. The assessment and management of psychiatric issues is relevant to preoperative patient selection and to optimal postoperative outcomes. This chapter reviews the evidence on psychiatric symptoms in the perioperative state including suicidal behaviors, depression, anxiety, mania, apathy, and impulse control disorders.