title: Intravenous amantadine sulphate application improves the performance of complex but not simple motor tasks in patients with Parkinson's disease.
abstract: Intravenous application of amantadine sulphate induces a rapid improvement of motor symptoms in Parkinson's disease (PD), but there are no trials on the efficacy of this compound on bradykinesia, rigidity and tremor in detail in combination with standardized instrumental measurement of tapping and peg insertion abilities. We treated 31 stable non fluctuating PD patients with amantadine, scored motor symptoms of both arms and performed peg insertion and tapping under cued conditions before and after 3 days. Motor symptoms and peg insertion significantly improved in contrast to tapping. Tapping asks for repetitive performance of simple standardized movements, therefore it needs low cognitive efforts. Since peg insertion depends on more complex movements and thus more dopamine dependent cognitive processes, it improved after application of the indirect dopaminomimetic substance amantadine.
authors.affiliation: Department of Neurology, St. Josef Hospital, Ruhr University Bochum, Gudrunstrasse 56, 44791, Bochum, Germany. thomas.mueller@ruhr-uni-bochum.de
authors.forename: Thomas
authors.initials: T
authors.lastname: Müller
authors.forename: Wilfried
authors.initials: W
authors.lastname: Kuhn
authors.forename: Thorsten
authors.initials: T
authors.lastname: Schulte
authors.forename: Horst
authors.initials: H
authors.lastname: Przuntek
mesh_terms: D000368:Aged; D000547:Amantadine / Q000008:administration & dosage / Q000627:therapeutic use*; D000978:Antiparkinson Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D009048:Motor Skills / Q000187:drug effects*; D010300:Parkinson Disease / Q000523:psychology*
chemical_list: D000978:Antiparkinson Agents; D000547:Amantadine