title: An analysis of treatment options and outcome in patients with Parkinson's disease and severe dyskinesias.
abstract: Forty-one patients with Parkinson's disease and severe dyskinesias were analyzed retrospectively to determine if some general principles would emerge to aid physicians handling this complication of treatment. Dyskinesia type (high dopa chorea [HDC], low dopa chorea [LDC], high dopa dystonia [HDD], and low dopa dystonia [LDD]) predicted response to treatment and whether or not levodopa dose reduction would benefit dyskinesias without producing unacceptable "offs." High dopa chorea improved best but at the expense of increased "off" time, followed by LDD, HDD, and LDC. Levodopa reduction was an acceptable strategy in ameliorating HDC and LDD only. Adjunctive therapy benefited all dyskinesia types, although the majority of patients (12/17) helped by selegiline had LDD or LDC. Generally, low doses of dopamine agonists were helpful (bromocriptine < 20 mg/day; pergolide < 2 mg/day). When adding adjunctive therapy (except for selegiline or controlled-release carbidopa/levodopa), concomitant reduction in daily dose of levodopa was not an effective strategy to decrease dyskinesias. Serial trials of multiple drug regimens are useful in these patients.
authors.affiliation: Department of Neurology, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, New Brunswick 08903.
authors.forename: M H
authors.initials: MH
authors.lastname: Mark
authors.forename: J I
authors.initials: JI
authors.lastname: Sage
mesh_terms: D000368:Aged; D000547:Amantadine / Q000008:administration & dosage / Q000627:therapeutic use; D001971:Bromocriptine / Q000008:administration & dosage / Q000627:therapeutic use; D002230:Carbidopa / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage / Q000627:therapeutic use; D008875:Middle Aged; D009069:Movement Disorders / Q000188:drug therapy*; D010276:Parasympatholytics / Q000008:administration & dosage / Q000627:therapeutic use; D010300:Parkinson Disease / Q000188:drug therapy*; D010479:Pergolide / Q000008:administration & dosage / Q000627:therapeutic use; D012189:Retrospective Studies; D012642:Selegiline / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D010276:Parasympatholytics; D010479:Pergolide; D012642:Selegiline; D001971:Bromocriptine; D007980:Levodopa; D000547:Amantadine; D002230:Carbidopa