title: A case of Pallister-Killian syndrome associated with West syndrome.
abstract: We report the case of a 19-month-old boy with Pallister-Killian syndrome associated with West syndrome. The child was born at term to a healthy mother after an uneventful pregnancy. He was born by cesarean section because of fetal macrosomia. He was observed to have nystagmus, craniofacial dysmorphism, and mental retardation. Intractable epileptic spasms developed 17 months after birth, and electroencephalography revealed a modified hypsarrhythmia. The seizures were uncontrollable with sodium valproate monotherapy. At the age of 19 months, the child was diagnosed with Pallister-Killian syndrome of mosaic tetrasomy 12p by fluorescence in situ hybridization. Combination treatment with high-dose pyridoxal phosphate and sodium valproate eliminated seizures and improved the electroencephalographic abnormalities. To our knowledge, this is the first reported case of Pallister-Killian syndrome associated with West syndrome.
authors.affiliation: Department of Pediatrics, St. Marianna University School of Medicine, Kawasaki, Japan. h3yama@marianna-u.ac.jp
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Yamamoto
authors.forename: Miho
authors.initials: M
authors.lastname: Fukuda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Murakami
authors.forename: Noriko
authors.initials: N
authors.lastname: Kamiyama
authors.forename: Yusaku
authors.initials: Y
authors.lastname: Miyamoto
mesh_terms: D000927:Anticonvulsants / Q000627:therapeutic use; D006801:Humans; D007223:Infant; D018404:Isochromosomes; D008297:Male; D009030:Mosaicism; D011732:Pyridoxal Phosphate / Q000627:therapeutic use; D013036:Spasms, Infantile / Q000175:diagnosis / Q000188:drug therapy / Q000235:genetics*; D013577:Syndrome; D014635:Valproic Acid / Q000627:therapeutic use; D014803:Vitamin B Complex / Q000627:therapeutic use
chemical_list: D000927:Anticonvulsants; D014803:Vitamin B Complex; D011732:Pyridoxal Phosphate; D014635:Valproic Acid