SLC2A1 and Limb dystonia: They observed the clinical manifestations of 57 patients with GLUT1-DS and found that 89% were accompanied by gait disorders, with ataxic-spasm and ataxia being the most common, 86% of them had limb dystonia, 75% had mild chorea, 16% had myoclonus, 21% had dyskinesia and 28% had a non-epileptic emergency, including ataxia, weakness, Parkinson's disease and non-motor dyskinesia (28).