Hemiplegia, also known as postnatal infantile hemiplegia, is related to spastic hemiplegia and familial porencephaly. An important gene associated with Hemiplegia is ATP1A3 (ATPase Na+/K+ Transporting Subunit Alpha 3), and among its related pathways/superpathways are Signal Transduction and Neuropathic Pain-Signaling in Dorsal Horn Neurons. The drugs Baclofen and Lidocaine have been mentioned in the context of this disorder. Affiliated tissues include brain and cortex, and related phenotypes are nervous system and homeostasis/metabolism