Background: Glucose transporter type 1 deficiency syndrome is due to de novo mutations in the SLC2A1 gene encoding the glucose transporter type 1.
Phenomenology shown: Paroxysmal motor manifestations induced by exercise or fasting may be the main manifestations of glucose transporter type 1 deficiency syndrome.
Educational value: Proper identification of the paroxysmal events and early diagnosis is important since the disease is potentially treatable.
Keywords: GLUT1 deficiency; Paroxysmal exercise-induced dyskinesia; SLC2A1; dystonia; epilepsy.