RARE-04. INTELLECTUAL DEVELOPMENT IN CHILDREN WITH PEDIATRIC CRANIOPHARYNGIOMA AFTER TUMOR REMOVAL

INTRODUCTION: Intellectual assessment in children with craniopharyngioma after tumor removal is still unknown. We assessed intellectual development in children who underwent microsurgical resection in our institute over the last twelve years. MATERIALS AND METHODS: Ten children among 41 patients with craniopharyngioma treated and followed at Kagoshima University Hospital between 2007 and 2019 were reviewed. We also assessed intellectual development in 10 years or younger children with craniopharyngioma one year after tumor removal. Intelligence was assessed using the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-Ⅳ). RESULTS: Ten children underwent microsurgical tumor removal. The mean age at surgery was 5.8 (range 1–10) years. Transcranial approach was performed in 8 children, transsphenoidal approach in two children. The mean follow up period was 110 months. Gamma knife surgery (GKS) was performed in 6 children less than 6 months after first surgery. Regional recurrences occurred in 5 children, and additional GKS was performed in four children, second microsurgical removal in one child. Severe obesity with a transient electrolyte imbalance occurred in one child. Eight children with GH deficiency underwent GH replacement therapy. Eight children were assessed working memory index (WMI), processing speed index (PSI), Perceptual reasoning index (PRI), and verbal comprehension index (VCI) using WISC 4. Each mean value of WMI, PSI, and PRI was lower than VCI, except for 2 children with normal full scale intelligence quotient. CONCLUSION: WMI, PSI and PRI in children with intellectual disabilities were lower tendency than VCI after surgical removal of craniopharyngiomas in the present study.