ABSTRACT
Background/Purpose: Pediatric Acute Lymphoblastic Leukemia (ALL) affects ~4000 young Americans each year. Steroids are essential to curative ALL treatment yet have significant neuropsychiatric side effects that decrease quality of life for patients and families. However, incidence and predisposing risk factors are not well understood. This review aims to describe the current literature on neuropsychiatric side effects of steroids in Pediatric ALL. Method(s): A precise search in PubMed and Embase was cultivated using controlled vocabulary terms (MeSH, Emtree) and keywords for the following concepts: pediatrics, steroids, side effects, cancer, and neurobehavioral manifestations. Keywords and controlled vocabulary for each subject were arranged logically and combined with other concepts by Boolean Logic, using the Boolean operator AND, resulting in 642 precise results exploring neurobehavioral side effects of steroids in children with cancer. Results (2010 to date of search) were imported into Covidence systematic review software, and reviewed by SB and AM. Result(s): Twenty-three articles met inclusion criteria. There is marked variability in research methodology and no standard measurement of neuropsychiatric symptoms. Commonly reported symptoms include mood swings, irritability, depression, anxiety, aggression, insomnia, mania, and psychosis with prevalence between 5% and 75%. Heterogeneous research methodology and descriptions of psychiatric symptoms make it difficult to determine risk factors, though dexamethasone, family psychiatric history, and younger age are consistently associated with greater risk of behavioral dysregulation. Genetic predisposition (Bcl1 polymorphism, SNPs in GR gene) may increase susceptibility to developing depression during treatment. Data suggest variable efficacy of antipsychotics, benzodiazepines, hydrocortisone, and potassium-chloride. Conclusions and Implications: Existing data about neuropsychiatric side effects of steroids in pediatric ALL is extremely heterogeneous, creating challenges for standardized assessment and treatment. The burden of these symptoms necessitates further research to identify and treat vulnerable patients. Standard measurement of these symptoms could be a first step in eventually alleviating this source of distress.