Full remission of tardive dyskinesia following general anaesthesia.

A 44 year old woman with a severe drug induced tardive dyskinesia had previously been treated with a left thalamotomy and right deep brain stimulation. Thalamotomy abolished the right hemiballismus. Deep brain stimulation caused a moderate reduction of the remaining involuntary movements on the left side. After a minor orthopaedic operation under general anaesthesia, the dyskinesia disappeared completely, even with the deep brain stimulation turned off. The remission has now lasted for 41 months.