Abstract
Delirium is defined in the Diagnostic and Statistical Manual of Mental Disorders: Fifth edition (DSM-V) as a “disturbance and change in attention and awareness from baseline that develops over a short period of time, with fluctuating course” [1]. Delirium occurs as a result of factors related to primary illness, the treatment of that illness, and stressful and disorientating environment of the hospital [2]. There are limited data to describe the incidence of delirium in children hospitalized with cancer [3]. Delirium occurs frequently in adults and is an independent predictor of mortality, increased length of stay, and increased risk for long-term cognitive deficits [3]. The prevalence of delirium in hospitalized adults ages 18-56 with cancer ranges from 18%-44% [4]. Most pediatric studies on delirium focus on the critically ill child in the pediatric intensive care unit (PICU). It is estimated that the incidence of delirium in this population is as high as 29% [5].
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