Episodic Ataxia, also known as isaacs syndrome, is related to episodic ataxia, type 3 and episodic ataxia, type 4, and has symptoms including muscular fasciculation, muscle cramp and muscle rigidity. An important gene associated with Episodic Ataxia is SCN2A (Sodium Voltage-Gated Channel Alpha Subunit 2), and among its related pathways/superpathways are Transmission across Chemical Synapses and Cardiac conduction. Affiliated tissues include eye and brain, and related phenotypes are eeg abnormality and hyperhidrosis