Impact of Early Oral Antibiotic Therapy in Infants With Bacteremic Urinary Tract Infections.

Objectives: To determine the effect of early conversion to oral antibiotics in infants ≤90 days with gram-negative bacteremia and concomitant urinary tract infection on hospital length of stay (LOS) and 30-day revisits for urinary tract infection.

Design: This retrospective cohort study included infants ≤ 90 days who had concomitant positive blood and urine cultures with gram-negative bacteremia at 22 hospitals from January 1, 2002 through January 31, 2020. Early oral conversion was defined as a maximum intravenous (IV) duration of 4 days.

Follow-Up Blood Cultures in Young Infants With Bacteremic Urinary Tract Infections.

Background And Objectives: Researchers in previous studies suggest that the clinical yield of follow-up blood cultures (FUBCs) is low in infants with bacteremic urinary tract infection (UTI) because persistent bacteremia is rare; however, no researchers have analyzed the practice of routinely obtaining FUBCs. In our study, we evaluate outcomes in infants with FUBCs, examine opportunities for improvement of blood culture practices, and add important information to inform both clinical practice as well as further study.

Design: This retrospective cohort study included infants <90 days of age with bacteremia and UTI with the same pathogen at 22 hospitals that make up Intermountain Healthcare between 2002 to 2020.

Initial Guidance on Use of Monoclonal Antibody Therapy for Treatment of Coronavirus Disease 2019 in Children and Adolescents.

Background: In November 2020, the US Food and Drug Administration (FDA) provided Emergency Use Authorizations (EUA) for 2 novel virus-neutralizing monoclonal antibody therapies, bamlanivimab and REGN-COV2 (casirivimab plus imdevimab), for the treatment of mild to moderate coronavirus disease 2019 (COVID-19) in adolescents and adults in specified high-risk groups. This has challenged clinicians to determine the best approach to use of these products.

Methods: A panel of experts in pediatric infectious diseases, pediatric infectious diseases pharmacy, pediatric intensive care medicine, and pediatric hematology from 29 geographically diverse North American institutions was convened.

Multicenter Interim Guidance on Use of Antivirals for Children With Coronavirus Disease 2019/Severe Acute Respiratory Syndrome Coronavirus 2.

Background: Although coronavirus disease 2019 (COVID-19) is a mild infection in most children, a small proportion develop severe or critical illness. Data describing agents with potential antiviral activity continue to expand such that updated guidance is needed regarding use of these agents in children.

Methods: A panel of pediatric infectious diseases physicians and pharmacists from 20 geographically diverse North American institutions was convened.

Multicenter Initial Guidance on Use of Antivirals for Children With Coronavirus Disease 2019/Severe Acute Respiratory Syndrome Coronavirus 2.

Background: Although coronavirus disease 2019 (COVID-19) is mild in nearly all children, a small proportion of pediatric patients develop severe or critical illness. Guidance is therefore needed regarding use of agents with potential activity against severe acute respiratory syndrome coronavirus 2 in pediatrics.

Methods: A panel of pediatric infectious diseases physicians and pharmacists from 18 geographically diverse North American institutions was convened.

Antibiotic Timing in Pediatric Septic Shock.

Background And Objectives: National guidelines advocate for the administration of antibiotics within 1 hour to children with septic shock, although there is variance in the pediatric evidence-based literature supporting this benchmark. Our objective for this study was to describe the association of target time to antibiotic administration (TTAA) with outcomes of children treated for suspected septic shock in a pediatric emergency department. Septic shock is suspected when signs of perfusion and/or hypotension are present.

Oral Step-Down Therapy With Levofloxacin for Febrile Neutropenia in Children With Cancer.

Background: Although febrile neutropenia (FN) is a frequent complication in children with cancer receiving chemotherapy, there remains significant variability in selection of route (intravenous [IV] vs oral) and length of therapy. We implemented a guideline with a goal to change practice from using IV antibiotics after hospital discharge to the use of step-down oral therapy with levofloxacin for most children with FN until absolute neutrophil count > 500. The objectives of this study were to determine the impact of this guideline on home IV antibiotic use, and to evaluate the safety of implementation of this guideline.

Intravenous Vancomycin Therapeutic Drug Monitoring in Children: Evaluation of a Pharmacy-Driven Protocol and Collaborative Practice Agreement.

Background: Vancomycin optimization is challenging, requiring careful therapeutic drug monitoring (TDM) to avoid toxicity and ensure an efficacious concentration. Most prescriptions are empiric and often discontinued within 72 hours, which makes early TDM unnecessary. Although TDM using trough levels is common, the area under the concentration-time curve (AUC) is the preferred pharmacodynamic target.

Evaluation of Discharge Antibiotic Prescribing at a Freestanding Children's Hospital: Opportunities for Stewardship.

We conducted a retrospective study to evaluate suboptimal discharge antibiotic prescribing at a children's hospital and found that 27% of the prescriptions were suboptimal. Thirty-three percent of the patients who might have qualified for solid dosage forms received liquid dosages instead. Our findings suggest that opportunities exist for discharge antibiotic-stewardship and pill-swallowing programs.

Outpatient Parenteral Antimicrobial Therapy in Young Infants.

We examined clinical outcomes for 53 young infants (<3 months of age) treated with outpatient parenteral antimicrobial therapy after discharge from a freestanding children's hospital. None of the patients experienced treatment failure or disease progression; 9% of them experienced a catheter-related complication, but this percentage is not different than that for older children.

Pediatric lateral neck infections - Computed tomography vs ultrasound on initial evaluation.

Objective: Review the evaluation of children with a deep lateral neck infection and define the impact of initial imaging modality on outcomes and costs.

Method: Case series, pediatric patients <18 years of age admitted to a tertiary care hospital with lateral neck infection between 01/01/14-05/31/16 as identified by ICD-9 and ICD-10 codes: 289.3 (lymphadenitis, unspecified), 682.

Rhinovirus in Febrile Infants and Risk of Bacterial Infection.

Background: Febrile infants with viral respiratory infections have a reduced risk of bacterial infection compared with virus-negative infants. The risk of concomitant bacterial infection in febrile infants positive for human rhinovirus (HRV) by polymerase chain reaction (PCR) is unknown.

Methods: Infants 1-90 days old managed using the care process model for well-appearing febrile infants and with respiratory viral testing by PCR (RVPCR) in the emergency department or inpatient setting of 22 hospitals in the Intermountain Healthcare system from 2007-2016 were identified.

Impact of Antimicrobial Stewardship for Pediatric Outpatient Parenteral Antibiotic Therapy.

We developed an outpatient parenteral antibiotic therapy (OPAT) stewardship program in a freestanding children's hospital to improve the appropriateness of OPAT prescribing. Introduction of the program enabled expert review of nearly 90% of the patients being prepared for discharge with OPAT and was associated with a 24% reduction in OPAT use.

Reducing Pediatric Sternal Wound Infections: A Quality Improvement Project.

Objectives: To evaluate whether a quality improvement intervention reduces sternal wound infection rates in children after cardiac surgery.

Design: This is a pre- and postintervention quality improvement study.

Setting: A 16-bed cardiac ICU in a university-affiliated pediatric tertiary care children's hospital.

A Retrospective Study of the Impact of Rapid Diagnostic Testing on Time to Pathogen Identification and Antibiotic Use for Children with Positive Blood Cultures.

Introduction: Rapid identification of bloodstream pathogens provides crucial information that can improve the choice of antimicrobial therapy for children. Previous impact studies have primarily focused on adults. Our objective was to evaluate the impact of rapid testing in a children's hospital on time to organism identification and antibiotic use in the setting of an established antimicrobial stewardship program.

Pharmacodynamic studies of voriconazole: informing the clinical management of invasive fungal infections.

Introduction: Voriconazole is a broad-spectrum antifungal agent commonly used to treat invasive fungal infections (IFI), including aspergillosis, candidiasis, Scedosporium infection, and Fusarium infection. IFI often occur in immunocompromised patients, leading to increased morbidity and mortality.

Areas Covered: The objective of this review is to summarize the pharmacodynamic properties of voriconazole and to provide considerations for potential optimal dosing strategies.

Incidence, Morbidity, and Costs of Human Metapneumovirus Infection in Hospitalized Children.

Background: Human metapneumovirus (HMPV) causes acute respiratory tract infections in infants and children. We sought to measure the clinical and economic burden of HMPV infection in hospitalized children.

Methods: We conducted a retrospective cohort study from 2007 to 2013 at Primary Children's Hospital in Salt Lake City, Utah.

Economic analysis of rapid and sensitive polymerase chain reaction testing in the emergency department for influenza infections in children.

Background: Rapid multiplex polymerase chain reaction (PCR) assays simultaneously detect several respiratory viral pathogens with high sensitivity. Maximizing detection of influenza at the point of care has the potential to reduce unnecessary antibiotic use, laboratory tests and hospitalizations. However, the cost-effectiveness of rapid multiplex PCR assays for influenza has not been compared with other diagnostic methods in children.

Infection prevention and control practices in children's hospitals.

We surveyed hospital epidemiologists at 28 Children's Hospital Association member hospitals regarding their infection prevention and control programs. We found substantial variability between children's hospitals in both the structure and the practice of these programs. Research and the development of evidence-based guidelines addressing infection prevention in pediatrics are needed.

Outpatient parenteral antimicrobial therapy in pediatrics: an opportunity to expand antimicrobial stewardship.

We reviewed patient discharges with outpatient parenteral antimicrobial therapy (OPAT) to determine whether outpatient parenteral antimicrobial therapy was modifiable or unnecessary at a large tertiary care children's hospital. At least one modification definitely or possibly would have been recommended for 78% of episodes. For more than 40% of episodes, outpatient parenteral antimicrobial therapy was potentially not indicated.

A dynamic postoperative protocol provides efficient care for pediatric patients with non-ruptured appendicitis.

Purpose: Postoperative management of pediatric patients with non-ruptured appendicitis is highly variable and often includes an overnight stay in the hospital. We implemented a criteria-based postoperative protocol designed to eliminate postoperative antibiotics and facilitate timely discharge by utilizing the bedside nurse to evaluate for readiness for discharge.

Methods: We collected data on all patients with non-ruptured appendicitis at our institution following protocol implementation (May 1, 2012 to April 30, 2013) and compared them to a control group.

Response-based therapy for ruptured appendicitis reduces resource utilization.

Purpose: We examined the effectiveness of a postoperative ruptured appendicitis protocol that eliminated Pseudomonas coverage and based the duration of IV antibiotic treatment and length of hospital stay on the patient's clinical response.

Methods: In our new protocol, IV antibiotics were administered until the patient met discharge criteria: adequate oral intake, pain control with oral medications, and afebrile for 24h. We collected data on all patients with ruptured appendicitis at our institution following protocol implementation (May 1, 2012, to April 30, 2013) and compared them to a control group.

Pediatric vancomycin dosing: Trends over time and the impact of therapeutic drug monitoring.

Monitoring of vancomycin trough concentrations is recommended for pediatric patients in the product label and by several professional societies. However, among a network of freestanding children's hospitals vancomycin therapeutic drug monitoring (TDM) practices were reported to be highly variable. In this study, we sought to evaluate whether trends in vancomycin use and TDM changed across a large healthcare delivery system in Utah and Idaho from 2006 to 2012.

Few Patient, Treatment, and Diagnostic or Microbiological Factors, Except Complications and Intermittent Negative Cerebrospinal Fluid (CSF) Cultures During First CSF Shunt Infection, Are Associated With Reinfection.

Background: The relationship between first and subsequent cerebrospinal fluid (CSF) shunt infections is poorly understood. By understanding the factors associated with increased risk of reinfection, researchers may provide optimal treatment strategies at the time of first infection. The objective of this study was to describe and compare children with and without CSF shunt reinfection.

Considerations in the pharmacologic treatment and prevention of neonatal sepsis.

The management of neonatal sepsis is challenging owing to complex developmental and environmental factors that contribute to inter-individual variability in the pharmacokinetics and pharmacodynamics of many antimicrobial agents. In this review, we describe (i) the changing epidemiology of early- and late-onset neonatal sepsis; (ii) the pharmacologic considerations that influence the safety and efficacy of antibacterials, antifungals, and immunomodulatory adjuvants; and (iii) the recommended dosing regimens for pharmacologic agents commonly used in the treatment and prevention of neonatal sepsis. Neonatal sepsis is marked by high morbidity and mortality, such that prompt initiation of antimicrobial therapy is essential following culture collection.