MDS Abstracts

Abstracts from the International Congress of Parkinson’s and Movement Disorders.

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  • MDS Virtual Congress 2020

    Loss‐of‐function mutations in NR4A2 cause dopa‐responsive dystonia-parkinsonism

    T. Wirth, LL. Mariani, G. Bergant, M. Baulac, M.O Habert, N. Drouot, E. Ollivier, A. Hodžic, G.o Rudolf, P. Nitschke, G.a Rudolf, J. Chelly, C. Tranchant, M. Anheim, E. Roze (London, United Kingdom)

    Objective: To report two patients with early-onset dystonia-parkinsonism as a result of loss-of-function mutations in nuclear receptor subfamily 4 group A member 2 (NR4A2). Background:…
  • MDS Virtual Congress 2020

    Item Response Theory Analysis of the MDS-UPDRS Motor Examination: Tremor vs. Non-tremor Items

    M. Tosin, C. Goetz, S. Luo, G. Stebbins (Niteroi, Brazil)

    Objective: To investigate the dimensionality of MDS-UPRS Motor Examination (Part 3) using Item Response Theory (IRT). Background: In Parkinson's disease (PD), tremor severity behaves differently…
  • MDS Virtual Congress 2020

    Neuronal Inclusion Formation and Axonal Degeneration in Mutant TFG Transgenic Mice

    T. Kawarai, A. Orlacchio, R. Kaji (Tokushima, Japan)

    Objective: To investigate the TFG pathology by analyzing transgenic mice expressing mutant TFG protein. Background: It has been demonstrated that missense variants in TFG gene…
  • MDS Virtual Congress 2020

    Pallidal deep brain stimulation in GNAO1 mutation dystonic storm: a description of two pediatric cases

    E. Luque Buzo, O. Sierra Mateo, M.C Miranda Herrero, J.R Pérez Sáchez, C. Fernandez Carballal, B. Casa Fages, M. González Sánchez, A. Contreras Chicote, M. Vázquez López, J.M Garbizu Vidorreta, P. Castro Castro, F.J Grandas Pérez (Madrid, Spain)

    Objective: Description of two pediatric cases with refractory dystonic storm secondary to GNAO1 (G- Protein Subunit Alpha O1) mutation treated with pallidal deep brain stimulation…
  • MDS Virtual Congress 2020

    Vertically-Stacked Single Segment Activation (VSSA) as a Programming Approach for Directional DBS in Globus Pallidus Internus (GPi) in Parkinson’s Disease (PD) Patients: First Clinical Case Series

    M. Anjum, Y. Torres-Yaghi, C. Kalhorn, F. Amjad, A. Carwin, I. Fayed, S. Pallavaram, D. Zhang, F. Pagan (Washington, DC, USA)

    Objective: Programming approach to optimize outcomes in PD patients implanted in GPi with directional DBS systems and to analyze volumes of tissue activation (VTAs) in…
  • MDS Virtual Congress 2020

    When and how to stop subthalamic deep brain stimulation in late-stage Parkinson’s disease

    M. Fabbri, M. Zibetti, m. Rizzone, G. Giannini, L. Borellini, A. Stefani, F. Bove, A. Bruno, G. Calandra-buonaura, N. Modugno, C. Piano, A. Peppe, G. Ardolino, A. Romagnolo, C. Artusi, P. Berchialla, E. Montanaro, P. Cortelli, L. Romito, R. Eleopra, B. Minafra, C. Pacchetti, L. Lopiano (Bologna, Italy)

    Objective: We sought to investigate the percentage of “poor stimulation responders” among late-stage Parkinson's disease (LSPD) patients for elaborating an algorithm to decide whether and…
  • MDS Virtual Congress 2020

    The clinical utility of programming method for multi-contact electrodes of deep brain stimulation in Parkinson’s disease

    T. Nagao, T. Nagao, M. Nemoto, N. Sugo (Sakura city, Japan)

    Objective: Consider the clinical utility of programming method for multi-contact electrodes in Parkinson’s disease (PD) from our experiences. Background: Some PD patients with deep brain…
  • MDS Virtual Congress 2020

    The Subthalamic Fasciculus and Connectivity Profiling of Stimulation-induced Dyskinesia following Pallidal DBS in Parkinson’s Disease

    T. Tsuboi, A. Elkouzi, W. Deeb, A. Ramirez-Zamora, L. Almeida, P. Zeilman, R. Eisinger, K. Foote, L. Okromelidze, S. Grewal, M. Okun, E. Middlebrooks (Gainesville, FL, USA)

    Objective: To identify anatomical regions related to stimulation-induced dyskinesia (SID) following pallidal deep brain stimulation (DBS) in Parkinson’s disease (PD) and to analyze structural and…
  • MDS Virtual Congress 2020

    Impedance Doesn’t Change with Levodopa Treatment

    A.Y Yilmaz, C. Akbostanci, A. Savas (Ankara, Turkey)

    Objective: We aimed to evaluate the impedance of patients on their best ON/worst OFFs with levodopa, assuming that the level of dopamine at electrode’s vicinity…
  • MDS Virtual Congress 2020

    O-arm stereotactic imaging in deep brain stimulation surgery workflow: A utility and cost-effectiveness analysis

    L. Furlanetti, H. Hasegawa, A. Oviedova, A. Raslan, M. Samuel, R. Selway, K. Ashkan (London, United Kingdom)

    Objective: This study aimed to evaluate the safety and feasibility of using the Medtronic O-arm device for the acquisition of intraoperative stereotactic imaging, targeting, and…
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