alexa Decreased Dopamine Transporter Binding Ipsilateral to the Clinically More Affected Side in Parkinson's disease: Which Side to Take?
ISSN: 2155-9562

Journal of Neurology & Neurophysiology
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Research Article

Decreased Dopamine Transporter Binding Ipsilateral to the Clinically More Affected Side in Parkinson's disease: Which Side to Take?

Nurit Birman1, Mordechai Lorberboym2, Yair Lampl1 and Ruth Djaldetti3*

1Departments of Neurology, Edith Wolfson Medical Center, Holon 5822013, Israel

2Department of Nuclear Medicine, Edith Wolfson Medical Center, Holon 5822013, Israel

3Department of Neurology, Rabin Medical Center-Beilinson Hospital, Petach Tikva 4941492, Tel Aviv University, Tel Aviv 6997801, Israel

*Corresponding Author:
Ruth Djaldetti
Department of Neurology
Rabin Medical Center-Beilinson Hospital
Petach Tikva 4941492, Israel
Tel: +972-3-937-6351
Fax: +972-3-922-3352
E-mail: [email protected]

Received date: January 18, 2016 Accepted date: March 09, 2016 Published date: March 16, 2016

Citation: Birman N, Lorberboym M, Lampl Y, Djaldetti R (2016) Decreased Dopamine Transporter Binding Ipsilateral to the Clinically More Affected Side in Parkinson's disease: Which Side to Take?. J Neurol Neurophysiol 7:361. doi:10.4172/2155-9562.1000361

Copyright: © 2016 Birman N, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Objective: The gold standard for diagnosis of Parkinson's disease (PD) is SPECT with dopamine transporters (DaT). Reduced ligand uptake in the dorsal putamen is usually more prominent in the hemisphere contralateral to the side with more predominant clinical symptoms. However, in some cases, loss of ligand uptake is more severe on the ipsilateral side. The aim of the study was to characterize the clinical symptoms and outcome of patients with an initial diagnosis of PD and SPECT findings of reduced ligand uptake on the side ipsilateral to the motor symptoms.
Methods: All SPECT studies performed at Wolfson Medical Center in 2001-2013 were reviewed for findings of an asymmetrical striatal decrease in ligand uptake. The side with the greater loss in uptake was recorded, and data on the side of disease onset were retrieved from the medical files of the corresponding patients. Patients with mismatched findings formed the study group and were further evaluated for clinical characteristics and disease course.
Results: Of the 95 patients with asymmetric DaT binding on SPECT whose medical files were available for analysis, 11 met the inclusion criteria. On long-term follow-up (2-13 years), 5 had a typical course of PD. Among the remainder, one had possible diffuse Lewy body disease, one had vascular Parkinsonism, and 4 had nonprogressive disease.
Conclusion: Loss of DaT binding ipsilateral to the clinically more affected side should raise suspicions of a diagnosis other than PD.


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