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  • Title: A Cross-sectional Study of Two Chemotherapy Protocols on Long Term Neurocognitive Functions in Egyptian Children Surviving Acute Lymphoblastic Leukemia.
    Author: Sherief LM, Sanad R, ElHaddad A, Shebl A, Abdelkhalek ER, Elsafy ER, Hassan TH, Raafat N, Kamal NM, Attia EI.
    Journal: Curr Pediatr Rev; 2018; 14(4):253-260. PubMed ID: 30381081.
    Abstract:
    INTRODUCTION: Subtle neurocognitive deficits have been recently observed in Acute Lymphoblastic Leukemia (ALL) survivors. AIM: We aim to assess the neurocognitive functions of ALL survivors who had been treated with chemotherapy only using two different protocols, and to identify treatment-related risk factors. PATIENTS AND METHODS: We carried a multicenter study involving 3 pediatric oncology centers on 100 children who were treated for ALL. Fifty patients were treated by the modified Children's Cancer Group (CCG) 1991 protocol with low dose methotrexate and 50 children were treated by Total XV protocol with high dose methotrexate. Fifty healthy children were included as a control group. Psychometric assessment using Arabic version of Wechsler intelligence scale for children (WISC III) was performed for all patients and controls. RESULTS: Patients had significantly lower mean full scale IQ, performance IQ and verbal IQ than controls. Patients ≤ 5 years at diagnosis had significantly lower mean full scale IQ and performance IQ than patients>5 years at diagnosis, while the verbal IQ showed no significant difference between both age groups. Female patients had significantly lower mean full scale IQ, performance IQ and verbal IQthan males. Patients who received Total XV protocol with high dose methotrexate had significantly lower mean full scale IQ, performance IQ and verbal IQ than patients who received modified CCG 1991 protocol with low dose methotrexate. CONCLUSIONS: CNS directed chemotherapy might appear to affect neurocognitive functions in children with ALL, which is more significant in young children at diagnosis, in girls and in those receiving high dose methotrexate.
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