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Published on: February 23, 2014
Fever without localizing signs in children: a review in the post-Hib and postpneumococcal era
1Department of Pediatrics, Duke University Medical Center, Durham, NC 27710, USA.
Insights
Fever management in children has evolved due to vaccines like Haemophilus influenzae type b (Hib) and Streptococcus pneumoniae, significantly reducing serious bacterial infections. Current evaluation strategies need updating to reflect these lower risks in febrile children.
Area of Science:
- Pediatrics
- Infectious Diseases
- Public Health
Background:
- Historically, febrile infants and children required extensive workups for serious bacterial infections, with occult bacteremia rates around 5.7%.
- Clinical practice guidelines in 1993 recommended risk-based evaluation for febrile children.
- Introduction of Haemophilus influenzae type b (Hib) and Pneumococcal Conjugate Vaccine (PCV7) vaccines dramatically reduced serious infection rates.
Purpose of the Study:
- To review the historical management of febrile children.
- To discuss advancements impacting the evaluation of serious bacterial infections.
- To provide updated recommendations for managing febrile children in the current era.
Main Methods:
- Literature review of historical and current practices in pediatric fever management.
- Analysis of the impact of vaccination and antibiotic prophylaxis on serious bacterial infection rates.
- Synthesis of evidence to inform revised clinical guidelines.
Main Results:
- Occult bacteremia rates have fallen from 5.7% to 0-0.74% post-vaccination.
- Intrapartum antibiotic administration has reduced early-onset Group B Streptococcus disease.
- Despite reduced risks, evaluation and management protocols for febrile children have largely remained unchanged.
Conclusions:
- The significant decline in serious bacterial infections necessitates a re-evaluation of current management strategies for febrile children.
- Updated guidelines are crucial to align clinical practice with the current low-risk landscape.
- Recommendations focus on adapting evaluation and management to reflect contemporary pediatric infectious disease epidemiology.
Abstract:
Fever without localizing signs in young infants and children has been a common problem for pediatric practitioners for decades. Prior to the introduction of vaccines against common childhood invasive pathogens, including Haemophilus influenzae type b (Hib) and Streptococcus pneumoniae, extensive diagnostic workup of febrile infants and children was warranted to avoid missing serious bacterial infections. At that time, occult bacteremia occurred at a rate of 5.7%. Evaluation of febrile children was based on high and low risk criteria established by Dagan et al. and applied further in suggested clinical practice guidelines in 1993. After the introduction of effective Hib and PCV7 vaccines, the rate of serious bacterial infections has dramatically fallen, with occult bacteremia rates now 0-0.74%. Changes in the administration of intrapartum antibiotics to women at risk for transmitting Group B Streptococcus to neonates has significantly reduced the rates of early onset GBS disease in infants. Although the risk of serious infections is extremely low, management and evaluation of febrile children has remained essentially unchanged. This review summarizes the historical context of the management of the febrile child, discusses the developments that have been cause for re-evaluation and provides recommendations for management of the febrile child in this current era.
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