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Updated: May 30, 2026

A Neonatal Imaging Model of Gram-Negative Bacterial Sepsis
Published on: August 12, 2020
[Estimation of the level of endogenous intoxication in septic infants]
Insights
Endogenous intoxication (EI) in septic infants can be assessed using circulating immune complexes (CIC) and leukocyte intoxication index (LII). High levels of CIC and LII post-treatment indicate incomplete recovery and risk of complications in sepsis.
Area of Science:
- Pediatrics
- Immunology
- Critical Care Medicine
Context:
- Sepsis is a life-threatening condition in infants, often leading to systemic complications.
- Endogenous intoxication (EI) is a significant factor in sepsis severity and outcomes.
- Assessing EI requires reliable biomarkers for accurate diagnosis and prognosis.
Purpose:
- To estimate the degree of endogenous intoxication (EI) in septic infants.
- To evaluate the utility of circulating immune complexes (CIC) and leukocyte intoxication index (LII) as biomarkers for EI.
- To correlate EI levels with clinical severity and treatment outcomes in pediatric sepsis.
Summary:
- A clinical trial involving 46 septic infants (1 month to 1.5 years) assessed EI using CIC and LII levels.
- Three grades of EI were identified, correlating with clinical conditions.
- Persistent high CIC and LII levels in 18% of patients post-clinical resolution indicated incomplete recovery and potential for complications.
Impact:
- High CIC and LII levels serve as indicators of incomplete pathological processes in septic infants.
- These biomarkers can aid in predicting sepsis progression and recurrence.
- The findings support the integration of CIC and LII monitoring into routine pediatric sepsis management for improved patient outcomes.
Abstract:
The investigation was undertaken to estimate the degree of endogenous intoxication (EI) in septic infants, by studying the levels of circulating immune complexes (CIC) and leukocyte intoxication index (LII). A clinical trial was conducted in 46 patients with septic infants aged 1 month to 1.5 years. According to clinical and laboratory parameters, the author identified 3 grades of EI, which were directly related to the patient's condition. Despite clinical resolution, the levels of CIC and LII significantly remained at the high baseline level in 18% of the patient, which created conditions for developing complications and recurrences and suggested that the pathological process was incomplete. Therefore it is recommended to keep in mind these indicators in predicting sepsis and they may be extensively used in the practical health system.
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