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  • Title: Cardiac valve regurgitation with pergolide compared with nonergot agonists in Parkinson disease.
    Author: Dewey RB, Reimold SC, O'Suilleabhain PE.
    Journal: Arch Neurol; 2007 Mar; 64(3):377-80. PubMed ID: 17353380.
    Abstract:
    BACKGROUND: Although most studies have suggested an increased risk of valvulopathy (primarily regurgitation) with pergolide mesylate use, one study suggested that this problem may also occur with use of the non-ergot-derived dopamine agonists pramipexole dihydrochloride and ropinirole hydrochloride. OBJECTIVE: To determine if cardiac valve regurgitation occurs more commonly in patients with Parkinson disease (PD) treated with pergolide than in those treated with nonergot agonists at a comparable dose. DESIGN: A case-control study of echocardiographic findings of valve function in patients receiving dopamine agonists for PD. SETTING: University-based referral center. Patients Thirty-six patients with idiopathic PD taking pergolide were compared with a matched control group of patients taking nonergot agonists with regard to the frequency and severity of cardiac valve regurgitation. Main Outcome Measure Valve scores (1 indicates trace; 2, mild; 3, moderate; and 4, severe) for the pergolide group were compared with those for the nonergot agonist control group. RESULTS: The mean +/- SD valve regurgitation scores in the matched pergolide group compared with the nonergot group were as follows: aortic, 0.83 +/- 1.23 vs 0.19 +/- 0.53 (P = .01); mitral, 1.42 +/- 1.0 vs 0.39 +/- 0.65 (P<.001); and tricuspid, 1.43 +/- 1.0 vs 0.19 +/- 0.53 (P<.001). Lifetime exposure to a dopamine agonist was not statistically different between the pergolide and nonergot agonist groups (P = .18). CONCLUSIONS: These data strengthen the conclusion that pergolide contributes to cardiac valve regurgitation when used in the long term as a treatment for PD. There appears to be low risk of cardiac valve regurgitation when using non-ergot-derived dopamine agonists.
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