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Background and Objectives: National estimates indicate that the incidence of neonatal abstinence syndrome (NAS), a postnatal opioid withdrawal syndrome, increased more than fivefold between 2004 and 2016. There is no gold standard definition for capturing NAS across clinical, research, and public health settings. Our objective was to evaluate how different definitions of NAS modify the calculated incidence when applied to a known population of opioid-exposed infants., Methods: Data for this retrospective cohort study were obtained from opioid-exposed infants born at Vanderbilt University Medical Center in 2018. Six commonly used clinical and surveillance definitions of opioid exposure and NAS were applied to the study population and evaluated for accuracy in assessing clinical withdrawal., Results: A total of 121 opioid-exposed infants met the criteria for inclusion in our study. The proportion of infants who met criteria for NAS varied by predefined definition, ranging from 17.4% for infants who received morphine to 52.8% for infants with the diagnostic code for opioid exposure. Twenty-eight infants (23.1%) received a clinical diagnosis of NAS by a medical provider, and 38 (34.1%) received the diagnostic code for NAS at discharge., Conclusions: We found significant variability in the incidence of opioid exposure and NAS among a single-center population using 6 common definitions. Our findings suggest a need to develop a gold standard definition to be used across clinical, research, and public health surveillance settings., Competing Interests: POTENTIAL CONFLICT OF INTEREST: The authors have indicated they have no potential conflicts of interest to disclose., (Copyright © 2021 by the American Academy of Pediatrics.)

Background: Pediatric acute kidney injury (AKI) is common and associated with increased morbidity, mortality, and length of stay. We performed a pragmatic randomized trial testing the hypothesis that AKI risk alerts increase AKI screening., Methods: All intensive care and ward admissions of children aged 28 days through 21 years without chronic kidney disease from 12/6/2016 to 11/1/2017 were included. The intervention alert displayed if calculated AKI risk was > 50% and no serum creatinine (SCr) was ordered within 24 h. The primary outcome was SCr testing within 48 h of AKI risk > 50%., Results: Among intensive care admissions, 973/1909 (51%) were randomized to the intervention. Among those at risk, more SCr tests were ordered for the intervention group than for controls (418/606, 69% vs. 361/597, 60%, p = 0.002). AKI incidence and severity were the same in intervention and control groups. Among ward admissions, 5492/10997 (50%) were randomized to the intervention, and there were no differences between groups in SCr testing, AKI incidence, or severity of AKI., Conclusions: Alerts based on real-time prediction of AKI risk increased screening rates in intensive care but not pediatric ward settings. Pragmatic clinical trials provide the opportunity to assess clinical decision support and potentially eliminate ineffective alerts.

Objective: To describe the population of pediatric patients readmitted to a children's hospital within 15 days of discharge., Patients and Methods: Medical records were reviewed to identify characteristics of patients and their hospitalizations for all children hospitalized during calendar years 2007-2008 who were readmitted up to and including 15 days after a previous discharge., Results: Of 30 188 total hospital admissions during the study period, 2546 (8.4%) were followed by a readmission within 15 days of discharge. The age groups with the greatest number of readmissions were infants (aged 31-364 days, 20.8% of readmissions) and patients aged >10 years (31.3% of readmissions). Most readmitted patients (78.0%) had an underlying chronic illness, and patients with malignancies were most likely to be readmitted, followed by newborns and patients with neurologic conditions. Patients with malignancies also experienced the greatest number of readmissions per patient (4.1). Most patients who were readmitted had only 1 readmission (71.5%), but the small subset of patients with 3 or more readmissions accounted for 43.7% of all 15-day readmissions. Disease recurrence and natural course of the original diagnosis were the most common reasons for readmission (44.9%), followed by planned readmissions (20.6%) and readmissions for a new, unrelated illness (7.7%)., Conclusions: This report is the first description of the epidemiology of all 15-day pediatric readmissions at a children's hospital. The results of this study serve as a basis for additional analysis to determine the extent to which readmissions in the pediatric population may or may not be preventable.