Zúñiga-Ramírez C, Kramis-Hollands M, Mercado-Pimentel R, González-Usigli HA, Sáenz-Farret M, Soto-Escageda A, Fasano A. Generalized Dystonia and Paroxysmal Dystonic Attacks due to a Novel
ATP1A3 Variant.
TREMOR AND OTHER HYPERKINETIC MOVEMENTS (NEW YORK, N.Y.) 2019;
9:tre-09-723. [PMID:
31871823 PMCID:
PMC6925393 DOI:
10.7916/tohm.v0.723]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/19/2019] [Indexed: 12/23/2022]
Abstract
Background
Paroxysmal movement disorders are a heterogeneous group of neurological diseases, better understood in recent years thanks to widely available genetic testing.
Case report
A pair of monozygotic twins with dystonia and paroxysmal attacks, resembling paroxysmal non-kinesigenic dyskinesias, due to a novel ATP1A3 variant are reported. The complete resolution of their paroxysms was achieved using levodopa and deep brain stimulation of the internal globus pallidus. Improvement of interictal dystonia was also achieved with this therapy.
Discussion
Paroxysmal worsening of movement disorders should be suspected as part of the ATP1A3 spectrum. Treatment outcome might be predicted based on the phenotype.
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