RT Journal Article SR Electronic T1 Predictors of effective bilateral subthalamic nucleus stimulation for PD JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 932 OP 934 DO 10.1212/WNL.59.6.932 VO 59 IS 6 A1 Charles, P.D. A1 Van Blercom, N. A1 Krack, P. A1 Lee, S.L. A1 Xie, J. A1 Besson, G. A1 Benabid, A.-L. A1 Pollak, P. YR 2002 UL http://n.neurology.org/content/59/6/932.abstract AB To identify factors predictive of effective bilateral subthalamic nucleus (STN) stimulation for PD with severe motor complications, pre- and postoperative Unified PD Rating Scale (UPDRS) scores were analyzed in a series of 54 patients who received bilateral STN stimulation. Younger age and levodopa responsiveness predict a favorable response to bilateral STN stimulation. For individual PD symptoms, those that improve with a suprathreshold dose levodopa challenge are likely to improve with stimulation.