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Short reports |
1 Department of Neurology, Ajou University School of Medicine, Korea, Republic of
2 Department of Neurology, Catholic University of Korea, Korea, Republic of
3 Nuclear Medicine,Ajou University School of Medicine, Korea, Republic of
* To whom correspondence should be addressed. E-mail: phisland{at}chol.net.
Accepted 10 August 2005
| Abstract |
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We investigated cardiac sympathetic dysfunction using 123I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy in 20 patients with drug-induced parkinsonism (DIP). The mean heart to mediastinum ratio was significantly greater in patients with DIP than in those with Parkinson's disease (2.07 ± 0.39 vs 1.28 ± 0.15, p<0.001). MIBG uptake was not different between the DIP patients and the controls. Two DIP patients whose MIBG uptake was significantly reduced exhibited persistent parkinsonism and responded dramatically to levodopa.
Keywords: cardiac MIBG, drug-induced parkinsonism
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