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Updated: Jun 20, 2026

Modeling Chemotherapy Resistant Leukemia In Vitro
Published on: February 9, 2016
Does minimal central nervous system involvement in childhood acute lymphoblastic leukemia increase the risk for
Stavroula Anastasopoulou1,2, Arja Harila-Saari3, Bodil Als-Nielsen4
1Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.
Abstract:
Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) implicates enhanced intrathecal chemotherapy, which is related to CNS toxicity. Whether CNS involvement alone contributes to CNS toxicity remains unclear. We studied the occurrence of all CNS toxicities, seizures, and posterior reversible encephalopathy syndrome (PRES) in children with ALL without enhanced intrathecal chemotherapy with CNS involvement (n = 64) or without CNS involvement (n = 256) by flow cytometry. CNS involvement increased the risk for all CNS toxicities, seizures, and PRES in univariate analysis and, after adjusting for induction therapy, for seizures (hazard ratio [HR] = 3.33; 95% confidence interval [CI]: 1.26-8.82; p = 0.016) and PRES (HR = 4.85; 95% CI: 1.71-13.75; p = 0.003).
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