Abstract

Tardive disorders encompass phenomenologically diverse delayed-onset persistent involuntary motor symptoms associated with exposure to dopamine receptor blocking agents. Two common tardive disorders encountered in the clinical setting include tardive dyskinesia and tardive dystonia. This chapter presents a patient with severe refractory tardive dyskinesia and also tardive dystonia, manifesting as frequent and disabling retropulsion. He initially underwent bilateral globus pallidus interna (GPi) deep brain stimulation (DBS) but was found to have lead migration secondary to his severe hyperkinetic movements. He had persistent symptoms despite lead revision and ultimately required bilateral subthalamic nucleus (STN) rescue DBS implantation. The rescue procedure was synergistic with the initial GPi DBS and markedly improved his symptoms. Severe tardive dyskinesia and dystonia may respond to bilateral GPi DBS, and if necessary, rescue STN DBS can be added.

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