Long term cognitive effects of stereotactic thalamotomy on non-parkinsonian dyskinetic patients

Pre- and postoperative neuropsychological evaluation focusing on processing, memory, attentional and emotional deficits was performed on 10 non-parkinsonian dyskinetic patients undergoing single radiofrequency ventralateral (VL) unilateral thalamotomy. Patients carried a diagnosis of either familial tremor or multiple sclerosis and it was found that only in the cases of familial tremor was there no residual loss on long-term evaluation with consistent improvement postoperatively.