• Tara C Pilato, Elizabeth A Mauer, Linda M Gerber, and Chani Traube.
• Weill Cornell Medical College, New York, NY.
• Pediatr Crit Care Me. 2022 Oct 1; 23 (10): 766773766-773.

ObjectivesDelirium in critically ill children is associated with increased in-hospital morbidity and mortality. Little is known about the lingering effects of pediatric delirium in survivors after hospital discharge. The primary objective of this study was to determine whether children with delirium would have a higher likelihood of all-cause PICU readmission within 1 calendar year, when compared with children without delirium.DesignRetrospective cohort study.SettingTertiary care, mixed PICU at an urban academic medical center.PatientsIndex admissions included all children admitted between September 2014 and August 2015. For each index admission, any readmission occurring within 1 year after PICU discharge was captured.InterventionEvery child was screened for delirium daily throughout the PICU stay.Measurements And Main ResultsAmong 1,145 index patients, 166 children (14.5%) were readmitted at least once. Bivariate analyses compared patients readmitted within 1 year of discharge with those not readmitted: complex chronic conditions (CCCs), increased severity of illness, longer PICU length of stay, need for mechanical ventilation, age less than 6 months, and a diagnosis of delirium were all associated with subsequent readmission. A multivariable logistic regression model was constructed to describe adjusted odds ratios for readmission. The primary exposure variable was number of delirium days. After controlling for confounders, critically ill children who experienced greater than 2 delirium days on index admission were more than twice as likely to be readmitted (adjusted odds ratio, 2.2; CI, 1.1-4.4; p = 0.023). A dose-response relationship was demonstrated as children with longer duration of delirium had increased odds of readmission.ConclusionsIn this cohort, delirium duration was an independent risk factor for readmission in critically ill children. Future research is needed to determine if decreasing prevalence of delirium during hospitalization can decrease need for PICU readmission.Copyright © 2022 by the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies.

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