Abstract
Patients with low-grade glioma (LGG) who are successfully treated with irradiation are at increased risk for cognitive and psychosocial late effects. Conformal radiation therapy (CRT) allows sparing of cognitive deficits, but how it affects emotional and behavioral functioning remains unclear. We performed a prospective longitudinal study of the emotional and behavioral functioning of pediatric patients with LGG in the first 5 years post-CRT. Ninety-five pediatric patients with LGG treated on an institutional Phase II trial (August 1997–June 2009) underwent neuropsychological assessments pre-CRT and 6, 12, 24, 36, 48, and 60 months post-CRT. Parent-reported scores on the Child Behavior Checklist (CBCL) were analyzed. Three competence scales (School Competence, Social Competence, and Activities), two summary scales (Internalizing Problems and Externalizing Problems), and two subscales of theoretical interest (Attention Problems and Social Problems) from the CBCL were used. Among 80 eligible patients [44 female, 68 white], 51 had pilocytic astrocytoma and 13 had optic pathway glioma. Mean age at diagnosis was 6.8 years (SD = 4.3 years) and at CRT initiation was 8.9 years (SD = 3.4 years). Before CRT, deficits were demonstrated on the competence scales (mean scores below normative mean) and the Attention Problems and Social Problems subscales (mean scores above normative means). This trend continued at 5 years post-CRT. Longitudinal trajectories of emotional and behavioral functioning were stable over 5 years. Emotional and behavioral deficits remain relatively stable over the 5 years post-CRT in patients with LGG, suggesting that CRT may not exacerbate pre-existing psychosocial difficulties in this population.
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This research supported in part by American Lebanese Syrian and Associated Charities (ALSAC).
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Willard, V.W., Conklin, H.M., Wu, S. et al. Prospective longitudinal evaluation of emotional and behavioral functioning in pediatric patients with low-grade glioma treated with conformal radiation therapy. J Neurooncol 122, 161–168 (2015). https://doi.org/10.1007/s11060-014-1696-7
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DOI: https://doi.org/10.1007/s11060-014-1696-7