Disclosed is a novel method for detecting intractable epilepsy developed in the neonatal period and infancy. The method of the invention is performed for a sample separated from the living body and uses whether or not syntaxin-binding protein 1 (STXBP1) gene is deleted and/or whether or not a gene encoding abnormal STXBP1 is present as an index. According to the invention, definitive diagnosis of the disease can be performed and individualization and optimization of therapy including gene therapy is expected. Association of STXBP1 gene with the disease is first reported by the invention.
METHOD FOR DETECTING INTRACTABLE EPILEPSY DEVELOPED IN NEONATAL PERIOD AND INFANCY