Related Experiment Video
Updated: Aug 18, 2026

Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis
Published on: September 7, 2022
Bloodstream infection in children
1Department of Pediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Insights
Establishing clear definitions for bloodstream infections (BSI) in children is crucial for timely therapy and accurate sepsis research. These guidelines adapt adult criteria due to limited pediatric data, focusing on primary BSI.
Area of Science:
- Pediatrics
- Infectious Diseases
- Critical Care Medicine
Background:
- Bloodstream infections (BSI) in children require precise definitions for clinical management and research.
- Existing literature on pediatric BSI definitions is limited, necessitating adaptation from adult guidelines.
Purpose of the Study:
- To establish standardized definitions for bloodstream infections (BSI) in pediatric populations.
- To facilitate early identification for prompt treatment, enrollment in sepsis clinical trials, and epidemiological surveillance.
- To address the need for clear diagnostic criteria in pediatric infectious disease research.
Main Methods:
- A comprehensive literature search was conducted using keywords related to bloodstream infections, children, and sepsis.
- The search focused on identifying existing definitions and guidelines for pediatric BSI.
- Recommendations were adapted from adult guidelines due to a scarcity of pediatric-specific data.
Main Results:
- The medical literature provides sparse specific definitions for pediatric bloodstream infections.
- Recommendations for pediatric BSI definitions are primarily adapted from adult guidelines.
- The study differentiates primary BSI (of unknown origin) from other types like catheter-related BSI.
Conclusions:
- A bloodstream infection (BSI) is defined by the presence of a pathogen in the blood.
- Clinical significance is determined by host response, using modified Systemic Inflammatory Response Syndrome (SIRS) criteria in children or a recognizable clinical syndrome.
- Definitions for BSI in pediatric sepsis trials may differ from those used in epidemiological or surveillance studies.
Objective:
To establish the definitions of bloodstream infection (BSI) in children for the purposes of identifying BSI for early therapy, enrollment in sepsis trials, and epidemiology and surveillance studies.
Methods:
Generalized medical literature search using various combinations of the terms "bloodstream infection," "children," and "sepsis."
Results:
The medical literature is sparse on these topics; therefore, these recommendations are adapted from guidelines designed for adults. BSI overlaps with other areas of sepsis, such as catheter-related BSI, which will be covered separately. This discussion focuses on BSI of unknown origin, also known as primary BSI.
Conclusion:
A BSI is the presence of a pathogen in the blood. Its clinical significance should be determined by the presence of the host response as defined by the modified criteria for systemic inflammatory response syndrome SIRS in children or a clinically recognizable syndrome. Definitions of BSI for the purposes of sepsis trials may differ from those for epidemiologic or surveillance studies.
Related Concept Videos
Infection
The chain begins with pathogens: bacteria, viruses, fungi, prions, or parasites such as protozoa helminths. These can be present on the skin as transient or resident flora, or they can be acquired from the environment. Identifying and treating the type of infection and...
Respiratory Syncytial Virus Disease
Sexually Transmitted Infections
Bacterial Meningitis I: Introduction
Viral Meningitis
Reservoir of Infection