Although it was initially published that no genetic connection had been established, several genes have since become associated with<unk> . It can be associated with mutations in ARX, CDKL5, SLC25A22, STXBP1, SPTAN1, KCNQ2, ARHGEF9, PCDH19, PNKP, SCN2A, PLCB1, SCN8A, ST3GAL3, TBC1D24, BRAT1 and likely others. Less often, the root of the disorder is an underlying metabolic syndrome, though mitochondrial disorders, non-ketotic hyperglycinemia, and enzyme deficiency remain elusive as causes. Their mechanisms are not entirely known.
Ohtahara syndrome
Pallister–Killian syndrome
Cohen syndrome
Cohen-Gibson syndrome
Berdon syndrome
Scheie syndrome
Gleich's syndrome
Christianson syndrome