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As survival among children treated for cancer continues to improve, more attention is being focussed on the late effects of cancer treatment. In children treated for brain tumours, chronic neurocognitive effects are especially challenging. Deficits in cognitive development have been described most thoroughly among children treated for posterior-fossa(More)
OBJECTIVE To test the hypotheses that memory and attention deficits are prevalent in survivors of childhood medulloblastoma (MB) and that these deficits are associated with problems with academic achievement. METHODS The medical charts of 38 child survivors of MB, who were administered the California Verbal Learning Test, Child Version (CVLT-C), Conners'(More)
BACKGROUND Current treatment for medulloblastoma, which includes postoperative radiotherapy and 1 year of chemotherapy, does not cure many children with high-risk disease. We aimed to investigate the effectiveness of risk-adapted radiotherapy followed by a shortened period of dose-intense chemotherapy in children with medulloblastoma. METHODS After(More)
BACKGROUND Therapy for ependymoma includes aggressive surgical intervention and radiotherapy administered by use of methods that keep the risk of side-effects to a minimum. We extended this treatment approach to include children under the age of 3 years with the aim of improving tumour control. METHODS Between July 11, 1997, and Nov 18, 2007, 153(More)
PURPOSE This prospective, longitudinal study examined the effects of risk-adapted craniospinal irradiation (CSI) dose and the interactions of dose with age and time from diagnosis on intelligence quotient (IQ) and academic achievement (reading, spelling, and math) among patients treated for medulloblastoma (MB). PATIENTS AND METHODS Patients received(More)
PURPOSE To report disease control for patients with recurrent ependymoma (EP) treated with surgery and a second course of radiation therapy (RT(2)). PATIENTS AND METHODS Thirty-eight pediatric patients (median age, 2.7 years) with initially localized EP at the time of definitive RT underwent a second course of RT after local (n = 21), metastatic (n = 13),(More)
PURPOSE To examine two competing hypotheses relating to intellectual loss among children treated for medulloblastoma (MB): Children with MB either: (1) lose previously learned skills and information; or (2) acquire new skills and information but at a rate slower than expected compared with healthy same-age peers. PATIENTS AND METHODS Forty-four pediatric(More)
PURPOSE To describe clinical features, therapeutic approaches, and prognostic factors in pediatric patients with atypical teratoid/rhabdoid tumors (ATRT) treated at St Jude Children's Research Hospital (SJCRH). PATIENTS AND METHODS Primary tumor samples from patients diagnosed with ATRT at SJCRH between July 1984 and June 2003 were identified. Pathology(More)
No reliable classification is in clinical use for the therapeutic stratification of children with ependymoma, such that disease risk might be identified and patients treated to ensure a combination of maximal cure rates and minimal adverse therapeutic effects. This study has examined associations between clinicopathologic and cytogenetic variables and(More)
PURPOSE To test if methylphenidate (MPH) has an objective beneficial effect on immediate performance on tests of neurocognitive functions among learning-impaired survivors of childhood acute lymphoblastic leukemia (ALL) and malignant brain tumors (BT). PATIENTS AND METHODS From July 1, 1997 through December 31, 1998, 104 long-term survivors of childhood(More)