Publications by authors named "Timothy Savage"

Importance: Acute sinusitis is one of the most common indications for antibiotic prescribing in children, with an estimated 4.9 million such prescriptions in the US annually. Consensus does not exist regarding the optimal empirical antibiotic.

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Purpose: Acute bacterial sinusitis is among the most frequent outpatient infections in children and adolescents and is well suited to study in large healthcare utilization databases, but the validity of International Classification of Diseases, 10th Revision (ICD-10) codes together with antibiotic prescriptions to identify cases of acute bacterial sinusitis has not been established. We aimed to evaluate the validity of ICD-10 codes combined with antibiotic prescriptions to identify new diagnoses of acute bacterial sinusitis among pediatric patients evaluated in the outpatient setting.

Methods: Children and adolescents aged 17 years and younger with an outpatient diagnosis of acute sinusitis along with an antibiotic prescription from an ambulatory facility affiliated with the Mass General Brigham health system were identified via a clinical data warehouse.

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  • A study examined the risk of serious infections in children with psoriasis who were treated with systemic medications like ustekinumab, etanercept, and methotrexate over a 6-month period.
  • Researchers analyzed insurance claims data from over 2,300 children, comparing infection rates before and after pediatric drug approvals, and focusing on inpatient and outpatient infections.
  • The findings showed varying incidence rates of serious infections for each medication: ustekinumab had 18.4 per 1000 person-years, etanercept had 25.6, and methotrexate had 14.9.
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  • This study investigates the relationship between stool toxin concentrations and the severity of Clostridioides difficile infection (CDI) in children aged 2-17 years who were being treated for the infection.
  • Researchers found that although higher toxin concentrations were observed in children with severe disease and severe outcomes, these results were not statistically significant, suggesting more research is needed.
  • Notably, higher baseline stool toxin concentrations were significantly linked to recurrence of CDI, indicating that toxin measurement could aid in predicting outcomes and tailoring treatment strategies.
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  • - A study was conducted on children under 3 years old, comparing those with diarrhea to those without, all of whom tested positive for C. difficile using a specific test.
  • - Researchers measured the toxin levels in their stools and found significant overlap in toxin concentrations between the two groups (cases vs. controls).
  • - The findings suggest that just measuring toxin levels is not enough to tell if a child has an actual C. difficile infection or if they are simply carrying the bacteria without being sick.
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Objective: To identify subgroups likely to benefit from monoclonal antibody and antiviral therapy by evaluating the relationship between comorbidities and hospitalization among US adolescents with symptomatic coronavirus disease 2019 (COVID-19).

Study Design: We analyzed the relationship between presence of comorbidities and need for hospitalization within 28 days of COVID-19 diagnosis for adolescents aged 12-17 years listed in the Pediatric COVID-19 US registry, a multicenter retrospective cohort of US pediatric patients with COVID-19. Comorbidities assessed included obesity, chronic kidney disease (CKD), diabetes, immunosuppressive disease or treatment, sickle cell disease (SCD), heart disease, neurologic disease/neurodevelopmental disorders, and pulmonary disease (excluding patients with mild asthma).

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  • * Key measures to reduce transmission include strict hand hygiene, contact precautions, and environmental disinfection, with glove use significantly lowering infection risk.
  • * Antibiotic exposure is a major modifiable risk, so focused antimicrobial stewardship on high-risk antibiotics is crucial, though evidence on its effectiveness in children is still limited compared to adults.
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Cardiac infection with is rarely diagnosed, especially in children, and corresponding cardiac magnetic resonance imaging (CMR) has not been reported. We present a probable case, a 9-year-old girl with myopericarditis, eosinophilia, positive serology, and CMR findings consistent with myocardial edema.

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Accurate and early susceptibility results could reduce overuse of broad-spectrum antibiotics for empirical treatment of bacteremia. Direct disk diffusion testing (dDD) using nonstandardized inocula directly from blood cultures could facilitate earlier narrowing of antibiotics. To determine the predictive value of dDD compared with standardized antimicrobial susceptibility testing (AST), we performed a retrospective cohort study of 582 blood cultures from 495 pediatric patients with bacteremia.

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Diagnosis of COVID-19 by PCR offers high sensitivity, but the utility of detecting samples with high cycle threshold ( ) values remains controversial. Currently available rapid diagnostic tests (RDTs) for SARS-CoV-2 nucleocapsid antigens (Ag) have sensitivity well below PCR. The correlation of Ag and RNA quantities in clinical nasopharyngeal (NP) samples is unknown.

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The distribution of upper respiratory viral loads (VL) in asymptomatic children infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unknown. We assessed PCR cycle threshold (Ct) values and estimated VL in infected asymptomatic children diagnosed in nine pediatric hospital testing programs. Records for asymptomatic and symptomatic patients with positive clinical SARS-CoV-2 tests were reviewed.

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Background: There are sparse patient-level data available for children with novel coronavirus disease (COVID-19). Therefore, there is an urgent need for an updated systematic literature review that analyzes individual children rather than aggregated data in broad age groups.

Methods: Six databases (MEDLINE, Scopus, Web of Science, CINAHL, Google Scholar, medRxiv) were searched for studies indexed from January 1 to May 15, 2020, with MeSH terms: children, pediatrics, COVID-19, SARS-CoV-2.

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Background: Severe respiratory disease associated with enterovirus D68 (EV-D68) has been reported in hospitalized pediatric patients. Virologic and clinical characteristics of EV-D68 infections exclusively in patients presenting to a hospital Emergency Department (ED) or urgent care have not been well defined.

Methods: Mid-nasal swabs from pediatric patients with respiratory symptoms presenting to the ED or urgent care were evaluated using a commercial multiplex PCR platform.

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Background And Objectives: Influenza causes significant annual burden among children. Current guidelines recommend empiric treatment for a broadly defined group of children at high risk for influenza complications, resulting in overtreatment or costly viral testing. This study creates an algorithm for clinicians to risk stratify children with influenza-like illness (ILI) according to likelihood of influenza infection.

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Dengue virus (DENV) is a pathogen with a high impact on human health. It replicates in a wide range of cells involved in the immune response. To efficiently infect humans, DENV must evade or inhibit fundamental elements of the innate immune system, namely the type I interferon response.

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A contingent valuation survey was designed and implemented in 2003 to elicit the willingness to pay for haze reduction in scenic areas of the Eastern United States. This survey updated and enhanced a portion of a 1988 survey, Chestnut and Rowe's Preservation Values Study, which is commonly used to estimate benefits of haze reduction policies. The 2003 survey incorporated features to address criticisms of the 1988 survey regarding its lack of budget constraints and its simplistic descriptions of changes in visibility.

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