Enhanced D614G and Omicron Variants Antibody Persistence in Infants at 2 Months of Age Following Maternal mRNA Booster Vaccination During Pregnancy or Postpartum.

Background: Following maternal COVID-19 vaccination, the persistence of antibodies in sera and breast milk for mothers and infants is not well characterized. We sought to describe the persistence of antibodies through 2 months after delivery in maternal and infant serum and breast milk following maternal COVID-19 mRNA vaccination and to examine differences by receipt of booster dose during pregnancy or postpartum.

Methods: This is a prospective cohort study with enrollment from July 2021 to January 2022 at 9 US academic sites.

Antibiotic Management and Imaging Practices of Sinusitis-Related Epidural Empyema among Pediatric Centers.

A survey of pediatric infectious diseases clinicians from 49 children's hospitals demonstrated variability across institutions in the treatment of epidural empyema from sinus extension, including antibiotic route, selection, and impact of neuroimaging on determining duration of therapy.

Automated Evaluation of Antibiotic Prescribing Guideline Concordance in Pediatric Sinusitis Clinical Notes.

Background: Ensuring antibiotics are prescribed only when necessary is crucial for maintaining their effectiveness and is a key focus of public health initiatives worldwide. In cases of sinusitis, among the most common reasons for antibiotic prescriptions in children, healthcare providers must distinguish between bacterial and viral causes based on clinical signs and symptoms. However, due to the overlap between symptoms of acute sinusitis and viral upper respiratory infections, antibiotics are often over-prescribed.

Impact of clinician feedback reports on antibiotic use in children hospitalized with community-acquired pneumonia.

Background: Feedback reports summarizing clinician performance are effective tools for improving antibiotic use in the ambulatory setting, but the effectiveness of feedback reports in the hospital setting is unknown.

Methods: Quasi-experimental study conducted between December 2021 and November 2023 within a pediatric health system measuring the impact of clinician feedback reports delivered by email and reviewed in a monthly meeting on appropriate antibiotic use in children hospitalized with community-acquired pneumonia (CAP). We used an interrupted time series analysis (ITSA) to estimate the immediate change and change over time in the proportion of CAP encounters adherent to validated metrics of antibiotic choice and duration, then used Poisson regression to estimate intervention effect as a rate ratio (RR).

Association of Antibiotic Route and Outcomes in Children with Methicillin-Resistant Staphylococcus aureus Bacteremic Osteomyelitis.

Introduction: There remains uncertainty about whether transitioning to oral antibiotic therapy is appropriate for the management of children with methicillin-resistant Staphylococcus aureus (MRSA) bacteremic osteomyelitis. We compared clinical outcomes for children with MRSA osteomyelitis with associated bacteremia who were transitioned to discharge oral antibiotic therapy to those discharged on outpatient parenteral antibiotic therapy (OPAT).

Methods: We performed a retrospective, multicenter, cohort study of children ≤ 18 years hospitalized with MRSA bacteremic osteomyelitis across four children's hospitals from 2007 to 2018 discharged on oral antibiotic therapy versus OPAT.

Anaerobe-targeted antibiotic therapy in the neonatal intensive care unit.

Anaerobe-targeted antibiotic (ATA) therapy may adversely impact the developing neonatal microbiome. We describe utilization patterns, potential indications, and related outcomes of ATA therapy in neonatal intensive care units across the US over 13 years. While overall antibiotic use decreased, ATA use was unchanged.

Drivers of Inpatient Subspecialty Consultation Among Pediatric Hospitalists: A Qualitative Study.

Background And Objective: Inpatient subspecialty consultation is often medically necessary but in some cases may represent overuse. While pediatric consultation patterns have been described using observational data, qualitative methods may generate knowledge about contextual determinants of consultation behavior. Our objective was to understand how pediatric hospitalists make decisions about subspecialty consultation.

Post-Artesunate Delayed Hemolysis in Pediatric Malaria Patients in the United States.

Post-artesunate delayed hemolysis (PADH) occurred in 6 of 24 children treated with artesunate for severe malaria in the United States; however, severe hemolysis requiring hospitalization or transfusion was rare. In children in the United States treated with artesunate, counseling, and symptom monitoring may be preferred to weekly laboratory surveillance for PADH.

Evaluating the Desirability of Outcome Ranking (DOOR) and Response Adjusted for Duration of Antibiotic Risk (RADAR) for Clinical Trials of Antibiotics in Pediatric Pneumonia.

Objective outcomes for pediatric community-acquired pneumonia (CAP) are lacking. The desirability of outcome ranking (DOOR) and response adjusted for duration of antibiotic risk (RADAR) outcome encompass clinical benefit and adverse effects, while also accounting for antibiotic exposure. We evaluated DOOR/RADAR through simulations and compared sample size considerations to non-inferiority designs in a hypothetical trial comparing antibiotics to no antibiotics (i.

Antibiotic use among extremely low birth-weight infants from 2009 to 2021: a retrospective observational study.

Objective: To assess trends in antibiotic use across a large cohort of extremely low birth-weight (<1000 g; ELBW) infants admitted to academic and community neonatal intensive care units (NICUs) across the USA over a 13-year period.

Design: Repeated cross-sectional cohort study.

Setting: Premier Health Database, a comprehensive administrative database of inpatient encounters from academic and community hospitals across the US.

Trends in C-Reactive Protein Use in Early-onset Sepsis Evaluations and Associated Antibiotic Use.

Objective: To determine the prevalence of C-reactive protein (CRP) use in early-onset sepsis (EOS) evaluations in neonatal intensive care units (NICUs) across the US over time and to determine the association between CRP use and antibiotic use.

Study Design: A retrospective cohort study of NICUs contributing data to Premier Healthcare Database from 2009 through 2021. EOS evaluation was defined as a blood culture charge ≤ 3 days after birth.

Neonatal and infant infection with SARS-CoV-2.

Despite the substantial body of investigative work describing the Coronavirus Disease 2019 (COVID-19) pandemic, its impact on neonates and infants remains less well characterized. Here, we review the data on epidemiology of COVID-19 in this population. Widespread use of universal testing for SARS-CoV-2 among pregnant persons presenting for delivery complicates interpretation of the risks of perinatal exposure.

Utility of Anaerobic Blood Cultures in Neonatal Sepsis Evaluation.

Background: Clinicians variably obtain anaerobic blood cultures as part of sepsis evaluations in the neonatal intensive care unit (NICU). Our objective was to determine if anaerobic blood culture bottles yielded clinically relevant information by either recovering pathogens exclusively or more rapidly than the concurrently obtained aerobic culture bottle in the NICU.

Methods: A retrospective cohort study of blood cultures obtained from infants admitted to the NICU from August 01, 2015 to August 31, 2023.

Influence of Antibiotic Exposure Intensity on the Risk of Clostridioides difficile Infection.

Background: Antibiotics are a strong risk factor for Clostridioides difficile infection (CDI), and CDI incidence is often measured as an important outcome metric for antimicrobial stewardship interventions aiming to reduce antibiotic use. However, risk of CDI from antibiotics varies by agent and dependent on the intensity (ie, spectrum and duration) of antibiotic therapy. Thus, the impact of stewardship interventions on CDI incidence is variable, and understanding this risk requires a more granular measure of intensity of therapy than traditionally used measures like days of therapy (DOT).

Antibiotic route and outcomes for children hospitalized with pneumonia.

Background: Emerging evidence suggests that initial oral and intravenous (IV) antibiotics have similar efficacy in pediatric community-acquired pneumonia (CAP), but further data are needed.

Objective: We determined the association between hospital-level initial oral antibiotic rates and outcomes in pediatric CAP.

Designs, Settings, And Participants: This retrospective cohort study included children hospitalized with CAP at 43 hospitals in the Pediatric Health Information System (2016-2022).

Creation of a CF-specific antibiotic spectrum index (ASI) as an antimicrobial stewardship initiative.

Antibiotics are frequently utilized for cystic fibrosis (CF)-related pulmonary exacerbation treatment. The antibiotic spectrum index (ASI) is an antimicrobial stewardship tool developed to compare the relative breadth of individual antibiotics. This study aimed to create two expanded CF-specific ASI scoring indices for use in antimicrobial stewardship research and clinical care.

Parent and Clinician Views on Not Using Antibiotics for Mild Community-Acquired Pneumonia.

Objectives: Preschool-aged children with mild community-acquired pneumonia (CAP) routinely receive antibiotics even though most infections are viral. We sought to identify barriers to the implementation of a "no antibiotic" strategy for mild CAP in young children.

Methods: Qualitative study using semistructured interviews conducted in a large pediatric hospital in the United States from January 2021 to July 2021.

The epidemiology of cephalosporin allergy labels in pediatric primary care.

Background: Recent studies have sought to understand the epidemiology and impact of beta-lactam allergy labels on children; however, most of these studies have focused on penicillin allergy labels. Fewer studies assess cephalosporin antibiotic allergy labels in children. The objective of this study was to determine the prevalence, factors associated with, and impact of cephalosporin allergy labels in children cared for in the primary care setting.

Multiply robust causal inference of the restricted mean survival time difference.

The hazard ratio (HR) remains the most frequently employed metric in assessing treatment effects on survival times. However, the difference in restricted mean survival time (RMST) has become a popular alternative to the HR when the proportional hazards assumption is considered untenable. Moreover, independent of the proportional hazards assumption, many comparative effectiveness studies aim to base contrasts on survival probability rather than on the hazard function.