Publications by authors named "Bema Bonsu"

Unlabelled: It is unknown whether febrile infants 29 to 60 days old with positive urinalysis results require routine lumbar punctures for evaluation of bacterial meningitis.

Objective: To determine the prevalence of bacteremia and/or bacterial meningitis in febrile infants ≤60 days of age with positive urinalysis (UA) results.

Methods: Secondary analysis of a prospective observational study of noncritical febrile infants ≤60 days between 2011 and 2019 conducted in the Pediatric Emergency Care Applied Research Network emergency departments.

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Objectives: To determine whether the use of dry-erase boards for communicating the plan of care of children evaluated in the pediatric emergency department (PED) improves the family experience of care.

Methods: Dry-erase boards were mounted at eye level in patient examination rooms. The study was conducted during a 4-week period during which physicians were instructed to use the boards on alternating weeks.

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Objectives: In children with sickle cell disease treated for vasoocclusive episodes (VOEs), it is unknown if the temperature of infused fluids impacts clinical outcomes. We compared infusions of warmed and nonwarmed saline for treatment of VOE. We also assessed the tolerability and feasibility of infusing warmed saline in patients with VOEs.

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Objectives: The main purpose of this paper was to model the process by which patients enter the ED, are seen by physicians, and discharged from the Emergency Department at Nationwide Children's Hospital, as well as identify modifiable factors that are associated with ED lengths of stay through use of multistate modeling.

Methods: In this study, 75,591 patients admitted to the ED from March 1st, 2016 to February 28th, 2017 were analyzed using a multistate model of the ED process. Cox proportional hazards models with transition-specific covariates were used to model each transition in the multistate model and the Aalen-Johansen estimator was used to obtain transition probabilities and state occupation probabilities in the ED process.

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Importance: In young febrile infants, serious bacterial infections (SBIs), including urinary tract infections, bacteremia, and meningitis, may lead to dangerous complications. However, lumbar punctures and hospitalizations involve risks and costs. Clinical prediction rules using biomarkers beyond the white blood cell count (WBC) may accurately identify febrile infants at low risk for SBIs.

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Objectives: Child life interventions reduce the anxiety of medical procedures but are not always available in emergency departments. In this study, we determined the effect of parent-directed tablet computer use without child life direction on patient anxiety and on parent and suturing clinician experience during pediatric facial laceration repair.

Methods: In a children's hospital emergency department, we enrolled children 2 to 12 years of age undergoing unsedated facial laceration repairs and randomized them to parent-directed tablet computer distraction or standard supportive care.

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Article Synopsis
  • Clinicians evaluate young febrile infants for invasive bacterial infections (IBIs) using complete blood cell count parameters.
  • The study analyzed data from 4,313 febrile infants under 60 days old to determine the effectiveness of blood cell count thresholds in identifying IBIs.
  • Results showed that common thresholds for white blood cell count, absolute neutrophil count, and platelet count had low sensitivity in detecting IBIs, leading to the identification of optimal thresholds that improved diagnostic accuracy.
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Importance: Young febrile infants are at substantial risk of serious bacterial infections; however, the current culture-based diagnosis has limitations. Analysis of host expression patterns ("RNA biosignatures") in response to infections may provide an alternative diagnostic approach.

Objective: To assess whether RNA biosignatures can distinguish febrile infants aged 60 days or younger with and without serious bacterial infections.

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Objectives: The objective was to determine whether a child's race or ethnicity as determined by the treating physician is independently associated with receiving abdominal computed tomography (CT) after blunt torso trauma.

Methods: We performed a planned secondary analysis of a prospective observational cohort of children < 18 years old presenting within 24 hours of blunt torso trauma to 20 North American emergency departments (EDs) participating in a pediatric research network, 2007-2010. Treating physicians documented race/ethnicity as white non-Hispanic, black non-Hispanic, or Hispanic.

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Objectives: Emergency department (ED) identification and radiographic evaluation of children with intra-abdominal injuries who need acute intervention can be challenging. To date, it is unclear if a clinical prediction rule is superior to unstructured clinician judgment in identifying these children. The objective of this study was to compare the test characteristics of clinician suspicion with a derived clinical prediction rule to identify children at risk of intra-abdominal injuries undergoing acute intervention following blunt torso trauma.

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Study Objective: We compare test characteristics of abdominal computed tomography (CT) with and without oral contrast for identifying intra-abdominal injuries.

Methods: This was a planned subanalysis of a prospective, multicenter study of children (<18 years) with blunt torso trauma. Children imaged in the emergency department with abdominal CT using intravenous contrast were eligible.

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Objectives: The objective was to determine the association between the abdominal seat belt sign and intra-abdominal injuries (IAIs) in children presenting to emergency departments with blunt torso trauma after motor vehicle collisions (MVCs).

Methods: This was a planned subgroup analysis of prospective data from a multicenter cohort study of children with blunt torso trauma after MVCs. Patient history and physical examination findings were documented before abdominal computed tomography (CT) or laparotomy.

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Study Objective: Plain anteroposterior pelvic radiographs are commonly used to screen children for pelvic fractures or dislocations after blunt torso trauma. The test sensitivity and utility, however, are unclear. We assessed the sensitivity of anteroposterior pelvic radiographs for identifying children with pelvic fractures or dislocations after blunt torso trauma.

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Study Objective: We derive a prediction rule to identify children at very low risk for intra-abdominal injuries undergoing acute intervention and for whom computed tomography (CT) could be obviated.

Methods: We prospectively enrolled children with blunt torso trauma in 20 emergency departments. We used binary recursive partitioning to create a prediction rule to identify children at very low risk of intra-abdominal injuries undergoing acute intervention (therapeutic laparotomy, angiographic embolization, blood transfusion for abdominal hemorrhage, or intravenous fluid for ≥2 nights for pancreatic/gastrointestinal injuries).

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Objective: To describe variations in emergency department (ED) quality measures and determine the association between ED costs and outcomes for 3 pediatric conditions: asthma, gastroenteritis, and simple febrile seizure.

Study Design: This cross-sectional analysis of ED visits used the Pediatric Health Information System database. Children aged ≤ 18 years who were evaluated in an ED between July 2009 and June 2011 and had a discharge diagnosis of asthma, gastroenteritis, or simple febrile seizure were included.

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Objectives: To estimate sample sizes available for clinical trials of severe traumatic brain injury (TBI) in children, we described the patient demographics and hospital characteristics associated with children hospitalized with severe TBI in the United States.

Methods: We analyzed the 2006 Kids' Inpatient Database. Severe TBI hospitalizations were defined as children discharged with TBI who required mechanical ventilation or intubation.

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Rapid antigen testing of upper respiratory secretions collected with various swab types is often utilized for laboratory diagnoses of influenza virus infection. There are limited data on the effects of swab composition on test performance. This study compared the performance of the Quidel QuickVue Influenza A+B test on secretions from the anterior nares when a polyurethane foam swab was used for collection to that when a nylon flocked swab was used for collection.

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Article Synopsis
  • The study aimed to assess how administering antibiotics before a lumbar puncture affects cerebrospinal fluid (CSF) profiles in children with bacterial meningitis.
  • Researchers analyzed medical records from 245 children with confirmed or probable bacterial meningitis, particularly noting the impact of antibiotics given within 72 hours prior to the procedure.
  • The results indicated that patients who received antibiotics had higher CSF glucose levels and lower protein levels, especially those with more than 12 hours of pretreatment, but the duration of antibiotic therapy did not relate significantly to white blood cell counts in the CSF.
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Background: Introduction of the heptavalent conjugate vaccine for Streptococcus pneumoniae (PCV7) has led to a dramatic decline in meningitis by PCV7 serotypes, raising the possibility of similar trends by PCV7-related serogroups through cross-protection. A present concern, however, is of serotype replacement by pneumococci not related to PCV7 serogroups. If this occurs, there are currently few data to predict whether clinical outcomes will change substantially.

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Objective: Children with attention-deficit/hyperactivity disorder (ADHD) have a higher rate of more severe injuries than the general population. However, their ADHD may cause them to respond differently to procedural sedation required for treatment. The purpose of this article is to compare procedural sedation for children with and without ADHD.

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Objectives: Among children with cerebrospinal fluid (CSF) pleocytosis, the task of separating aseptic from bacterial meningitis is hampered when the CSF Gram stain result is unavailable, delayed, or negative. In this study, the authors derive and validate a clinical decision rule for use in this setting.

Methods: This was a review of peripheral blood and CSF test results from 78 children (< 19 years) presenting to Children's Hospital Columbus from 1998 to 2002.

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Background: Time series methods are commonly used to detect disease outbreak signatures (e.g., signals due to influenza outbreaks and anthrax attacks) from varying respiratory-related diagnostic or syndromic data sources.

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Background: When urine infections are missed in febrile young infants with normal urinalysis, clinicians may worry about the risk--hitherto unverified--of concomitant invasion of blood and cerebrospinal fluid by uropathogens. In this study, we determine the extent of this risk.

Methods: In a retrospective cohort study of febrile 0-89 day old infants evaluated for sepsis in an urban academic pediatric emergency department (1993-1999), we estimated rates of bacteriuric sepsis (urinary tract infections complicated by sepsis) after stratifying infants by urine leukocyte counts higher, or lower than 10 cells/hpf.

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Context: Children with cerebrospinal fluid (CSF) pleocytosis are routinely admitted to the hospital and treated with parenteral antibiotics, although few have bacterial meningitis. We previously developed a clinical prediction rule, the Bacterial Meningitis Score, that classifies patients at very low risk of bacterial meningitis if they lack all of the following criteria: positive CSF Gram stain, CSF absolute neutrophil count (ANC) of at least 1000 cells/microL, CSF protein of at least 80 mg/dL, peripheral blood ANC of at least 10,000 cells/microL, and a history of seizure before or at the time of presentation.

Objective: To validate the Bacterial Meningitis Score in the era of widespread pneumococcal conjugate vaccination.

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