Logo image
Kinesigenic dyskinesia in a case of voltage-gated potassium channel-complex protein antibody encephalitis
Journal article

Kinesigenic dyskinesia in a case of voltage-gated potassium channel-complex protein antibody encephalitis

Enrique Aradillas and Robert J Schwartzman
Archives of neurology (Chicago), v 68(4), pp 529-532
Apr 2011
PMID: 21149804

Abstract

Adult Autoantibodies - biosynthesis Dyskinesias - complications Dyskinesias - diagnosis Dyskinesias - immunology Encephalomyelitis - complications Encephalomyelitis - diagnosis Encephalomyelitis - immunology Humans Male Potassium Channels, Voltage-Gated - immunology
To describe the first case (to our knowledge) of voltage-gated potassium channel-complex protein antibody encephalitis with kinesigenic dyskinesia and cramp-fasciculation syndrome. Case report. Hospitalized care. A 38-year-old man with a history of bronchial asthma, eczema, vitiligo, and immune complex mesangiopathic glomerulonephritis presented with abnormal movements. Clinical examination, magnetic resonance imaging, single-photon emission computed tomography, electromyography and nerve conduction studies, video-electroencephalographic monitoring, plasmapheresis exchange therapy, and intravenous immunoglobulin administration. Clinical examination revealed paroxysmal kinesigenic dyskinesia and fasciculations. Magnetic resonance imaging of the brain revealed a left caudate and left putamen increased signal lesion on T2-weighted and fluid-attenuated inversion recovery sequences as well as increased flow in the same region on single-photon emission computed tomographic scans. Electromyography and nerve conduction studies revealed significant afterdischarges, cramp potentials, and continuous motor activity. The video-electroencephalographic monitoring revealed no epileptiform discharges. The patient dramatically improved after 5 plasmapheresis exchange treatments and a course of intravenous immunoglobulin at 2 gm/kg over 5 divided doses. To our knowledge, this is the first report of paroxysmal kinesigenic dyskinesia with voltage-gated potassium channel-complex protein antibody encephalitis associated with the cramp fasciculation syndrome.

Metrics

14 Record Views
21 citations in Scopus
24 readers on Mendeley

Details

UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#3 Good Health and Well-Being

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Web of Science research areas
Clinical Neurology
Logo image