GFAP and autoimmune encephalitis: Autoimmune encephalitis (AE) with dysautonomia, of course includes A-GFAP-A, may cause more morbidity and mortality [4], because autonomic dysfunction, especially cardiac autonomic dysfunction and abnormal circadian rhythm of blood pressure (CRBP), can complicate intensive care and involve a ventilator [5], even lead to hemodynamic shock sudden cardiac death (SCD).