Hemiballism after subthalamotomy in patients with Parkinson's disease: Report of 2 cases

Chiung Chu Chen, Shih Tseng Lee, Tony Wu, Chi Jen Chen, Chin Chang Huang, Chin Song Lu

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29 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)1367-1371
Number of pages5
JournalMovement Disorders
Issue number6
Publication statusPublished - Nov 2002
Externally publishedYes



  • Hemiballism
  • Parkinson's disease
  • Subthalamotomy

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

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