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Published on: March 14, 2017
Epidemiology of bloodstream infections in children with sickle cell disease
Angela M Ellison1, Kaede V Ota, Karin L McGowan
1Division of Emergency Medicine, Department of Pediatrics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. ellisona@email.chop.edu
Insights
The incidence of invasive Streptococcus pneumoniae and Haemophilus influenzae type b infections has decreased in children with sickle cell disease. However, central venous access device infections are a growing concern for bloodstream infections in this population.
Area of Science:
- Pediatric infectious diseases
- Hematology
- Vaccinology
Background:
- Sickle cell disease (SCD) increases susceptibility to invasive bacterial infections.
- The introduction of conjugate vaccines has significantly impacted the epidemiology of common bacterial pathogens in SCD.
- Understanding current infectious disease trends is crucial for managing SCD patients.
Purpose of the Study:
- To identify the predominant pathogens causing bloodstream infections in pediatric SCD patients.
- To assess the impact of the post-heptavalent conjugate vaccine era on infection patterns.
- To highlight emerging infectious disease challenges in SCD management.
Main Methods:
- Retrospective analysis of bloodstream infection data.
- Identification of causative organisms using standard microbiological techniques.
- Comparison of infection rates before and after the widespread use of heptavalent conjugate vaccines.
Main Results:
- A decline in invasive infections caused by Streptococcus pneumoniae and Haemophilus influenzae type b.
- Identification of other bacterial species as significant causes of bloodstream infections.
- An increasing trend of central venous access device-associated infections.
Conclusions:
- The landscape of bloodstream infections in pediatric SCD has shifted post-vaccination.
- Central venous access device infections represent a new and significant challenge.
- Ongoing surveillance and updated preventive strategies are necessary for SCD patients.
Abstract:
The incidence of invasive Streptococcus pneumoniae and Haemophilus influenzae type b infections in the sickle cell disease population has declined. In this report, we determine the predominant organisms responsible for bloodstream infections in a pediatric sickle cell disease population during the postheptavalent conjugate vaccine era. Central venous access device associated infections are a new burden to efforts aimed at preventing bloodstream infections in this population.
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