Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol

Background: The use of cranial radiotherapy for central nervous system (CNS) prophylaxis in children with acute lymphoblastic leukemia (ALL) is debated owing to its effect on neurocognitive functioning, as only <30% of the patients present with low risk in India and majority of the patients with...

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Main Authors: Sundaramoorthy Chidambaram, Vidhubala Elangovan, Vandana Mahajan, Prasanth Ganesan, Venkatraman Radhakrishnan
Format: Article
Language:English
Published: Thieme Medical and Scientific Publishers Pvt. Ltd. 2019-01-01
Series:Indian Journal of Medical and Paediatric Oncology
Subjects:
Online Access:http://www.ijmpo.org/article.asp?issn=0971-5851;year=2019;volume=40;issue=2;spage=222;epage=231;aulast=Chidambaram
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author Sundaramoorthy Chidambaram
Vidhubala Elangovan
Vandana Mahajan
Prasanth Ganesan
Venkatraman Radhakrishnan
author_facet Sundaramoorthy Chidambaram
Vidhubala Elangovan
Vandana Mahajan
Prasanth Ganesan
Venkatraman Radhakrishnan
author_sort Sundaramoorthy Chidambaram
collection DOAJ
description Background: The use of cranial radiotherapy for central nervous system (CNS) prophylaxis in children with acute lymphoblastic leukemia (ALL) is debated owing to its effect on neurocognitive functioning, as only <30% of the patients present with low risk in India and majority of the patients with high risk have to be treated with cranial radiation therapy (CRT) to prevent relapse. Given the increasing number of ALL survivors in India, the effect of CRT on neurocognitive functioning in children with ALL needs to be studied. Methods: Children (n = 44) with ALL who received CRT, intrathecal methotrexate (IT-MTX), and high-dose methotrexate (HD-MTX) for CNS prophylaxis as part of the modified Berlin-Frankfurt-Munster 95 protocol were included. Neurocognitive assessments and magnetic resonance image were performed to assess neurocognitive functioning and neuroanatomical structures, respectively. Five assessments were performed during the induction, end of re-induction I and II, commencement of maintenance, and end of maintenance phases of the modified BFM-95 protocol. Neurocognitive data of children with ALL were compared with those of healthy children (n = 60) at the baseline and after the final assessment. Results: A significant deterioration was observed in the performance intelligence, visuospatial ability, processing speed, and verbal retention domains after the completion of CNS prophylaxis. Three children had white matter changes on magnetic resonance imaging and showed reduced functioning in performance intelligence quotient, working memory, visual immediate and delayed memory, processing speed, verbal retention, visuospatial ability, processing speed, attention, planning and fine motor skills, and verbal comprehension. Children with ALL had poorer neuropsychological functioning when compared with healthy children. Conclusion: CNS prophylactic therapy as part of the BFM-95 protocol had an adverse effect on the neuropsychological functioning of children with ALL, and the effect was more pronounced when CRT was added to the treatment.
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spelling doaj-art-0efcd49dbf9a497a9223b0f67215db0a2025-08-20T03:17:23ZengThieme Medical and Scientific Publishers Pvt. Ltd.Indian Journal of Medical and Paediatric Oncology0971-58510975-21292019-01-0140222223110.4103/ijmpo.ijmpo_138_18Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocolSundaramoorthy ChidambaramVidhubala ElangovanVandana MahajanPrasanth GanesanVenkatraman RadhakrishnanBackground: The use of cranial radiotherapy for central nervous system (CNS) prophylaxis in children with acute lymphoblastic leukemia (ALL) is debated owing to its effect on neurocognitive functioning, as only <30% of the patients present with low risk in India and majority of the patients with high risk have to be treated with cranial radiation therapy (CRT) to prevent relapse. Given the increasing number of ALL survivors in India, the effect of CRT on neurocognitive functioning in children with ALL needs to be studied. Methods: Children (n = 44) with ALL who received CRT, intrathecal methotrexate (IT-MTX), and high-dose methotrexate (HD-MTX) for CNS prophylaxis as part of the modified Berlin-Frankfurt-Munster 95 protocol were included. Neurocognitive assessments and magnetic resonance image were performed to assess neurocognitive functioning and neuroanatomical structures, respectively. Five assessments were performed during the induction, end of re-induction I and II, commencement of maintenance, and end of maintenance phases of the modified BFM-95 protocol. Neurocognitive data of children with ALL were compared with those of healthy children (n = 60) at the baseline and after the final assessment. Results: A significant deterioration was observed in the performance intelligence, visuospatial ability, processing speed, and verbal retention domains after the completion of CNS prophylaxis. Three children had white matter changes on magnetic resonance imaging and showed reduced functioning in performance intelligence quotient, working memory, visual immediate and delayed memory, processing speed, verbal retention, visuospatial ability, processing speed, attention, planning and fine motor skills, and verbal comprehension. Children with ALL had poorer neuropsychological functioning when compared with healthy children. Conclusion: CNS prophylactic therapy as part of the BFM-95 protocol had an adverse effect on the neuropsychological functioning of children with ALL, and the effect was more pronounced when CRT was added to the treatment.http://www.ijmpo.org/article.asp?issn=0971-5851;year=2019;volume=40;issue=2;spage=222;epage=231;aulast=Chidambaramacute lymphoblastic leukemiabfm-95 protocolcentral nervous system prophylactic treatmentchemotherapychildhood cancercranial irradiationneuropsychological functioning
spellingShingle Sundaramoorthy Chidambaram
Vidhubala Elangovan
Vandana Mahajan
Prasanth Ganesan
Venkatraman Radhakrishnan
Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol
Indian Journal of Medical and Paediatric Oncology
acute lymphoblastic leukemia
bfm-95 protocol
central nervous system prophylactic treatment
chemotherapy
childhood cancer
cranial irradiation
neuropsychological functioning
title Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol
title_full Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol
title_fullStr Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol
title_full_unstemmed Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol
title_short Neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified BFM-95 protocol
title_sort neurocognitive and neuroanatomical changes in children with acute lymphoblastic leukemia treated with the modified bfm 95 protocol
topic acute lymphoblastic leukemia
bfm-95 protocol
central nervous system prophylactic treatment
chemotherapy
childhood cancer
cranial irradiation
neuropsychological functioning
url http://www.ijmpo.org/article.asp?issn=0971-5851;year=2019;volume=40;issue=2;spage=222;epage=231;aulast=Chidambaram
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