Hemiballism after subthalamotomy in patients with Parkinson's disease: report of 2 cases.
The occurrence of persistent hemiballism after subthalamotomy for Parkinson's disease (PD) has not been described as frequently as mild or transient dyskinesia. We report on 2 patients with advanced PD who developed hemiballism and/or dyskinesia after subthalamotomy. One patient with a small lesion confined to the subthalamic nucleus (STN) developed persistent hemiballism; the other with a larger lesion involving the STN and also the zona incerta presented with a transient dyskinesia in a single limb. We conclude that a precise STN lesion might bear a potential risk of persistent hemiballism.
Chen
Chiung-Chu
CC
Movement Disorders Unit, Chang Gung Memorial Hospital and Medical College, Chang Gung University, Lin-Ko, Taoyuan, Taiwan, Republic of China.
Lee
Shih-Tseng
ST
Wu
Tony
T
Chen
Chi-Jen
CJ
Huang
Chin-Chang
CC
Lu
Chin-Song
CS
D002819:Chorea / Q000175:diagnosis; D020820:Dyskinesias / Q000175:diagnosis*; D004564:Electrocoagulation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination; D010300:Parkinson Disease / Q000175:diagnosis / Q000601:surgery*; D011183:Postoperative Complications / Q000175:diagnosis*; D020531:Subthalamic Nucleus / Q000473:pathology / Q000601:surgery*; D020530:Subthalamus / Q000473:pathology