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Resolution of Fever in the Pediatric Emergency Department and Bacteremia
Alexandra H Baker1,2, Michael C Monuteaux1, Kenneth A Michelson1,2
1Division of Emergency Medicine, Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA.
Insights
Children with persistent fever after antipyretic medication are more likely to have bacteremia. This study highlights the importance of monitoring fever response in pediatric emergency departments to identify potential bloodstream infections.
Area of Science:
- Pediatric Emergency Medicine
- Infectious Diseases
- Clinical Microbiology
Background:
- Fever is a common symptom in children presenting to emergency departments.
- Antipyretics are frequently used to manage fever.
- The association between fever resolution and underlying bacteremia requires further investigation.
Purpose of the Study:
- To investigate the relationship between the lack of fever response to antipyretics and the presence of bacteremia in children.
- To determine if persistent fever after antipyretic administration is a predictor of bacteremia.
Main Methods:
- Cross-sectional study design.
- Inclusion of children with initial temperature ≥38°C presenting to a pediatric emergency department (ED).
- Analysis of blood cultures and fever resolution at 180 and 240 minutes post-antipyretic administration, adjusting for covariates.
Main Results:
- Out of 6319 febrile children, 242 (3.8%) had bacteremia.
- Children remaining febrile at 180 minutes had an adjusted odds ratio of 1.6 for bacteremia.
- Children remaining febrile at 240 minutes had an adjusted odds ratio of 1.7 for bacteremia.
Conclusions:
- Lack of fever resolution following antipyretic use is associated with a higher likelihood of bacteremia in children.
- Persistent fever in pediatric ED patients may indicate underlying bloodstream infections.
- Monitoring antipyretic response is crucial for identifying children with bacteremia.
Abstract:
To determine whether a lack of response to antipyretics was associated with bacteremia, we performed a cross-sectional study involving children with an initial temperature ≥38°C presenting to a pediatric emergency department (ED) from 2012 to 2020 who received an antipyretic and had a blood culture obtained. We assessed the association of resolution of fever at specific time points after antipyretic administration with bacteremia adjusting for age, complex chronic condition, blood culture source, type of antipyretic, and height of temperature. Among 6319 febrile children, 242 (3.8%) had bacteremia. The adjusted odds ratio of bacteremia was 1.6 (95% confidence interval: 1.2-2.2) among children who remained febrile at 180 minutes and 1.7 (1.2-2.4) among children who remained febrile at 240 minutes. Among febrile children presenting to a tertiary care ED for whom a blood culture was obtained, the response to an antipyretic varies based on the presence or absence of bacteremia.
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