title: Levodopa-induced dyskinesia and thalamotomy.
abstract: Levodopa-induced dyskinesia of the limbs in thirteen cases of Parkinsonism, which was choreic, ballistic or dystonic in type, was alleviated almost completely by stereotaxic surgery using a microelectrode technique for the ventralis oralis anterior and posterior nuclei of the thalamus, but much less by the ventralis intermedius nucleus. Control of levodopa-induced dyskinesias by thalamic lesions in the course of routine treatment of Parkinsonism is discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D004409:Dyskinesia, Drug-Induced / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D007980:Levodopa / Q000009:adverse effects* / Q000627:therapeutic use; D008297:Male; D008866:Microsurgery; D008875:Middle Aged; D010300:Parkinson Disease / Q000188:drug therapy* / Q000503:physiopathology; D013238:Stereotaxic Techniques; D013787:Thalamic Nuclei / Q000503:physiopathology / Q000601:surgery*
chemical_list: D007980:Levodopa