# Variation of Pro- and Anti-Inflammatory Factors in Severe Burns: A Systematic Review

## TL;DR

This systematic review explores how pro- and anti-inflammatory factors change after severe burns, affecting recovery or complications like sepsis.

## Contribution

The study provides a comprehensive synthesis of inflammatory dynamics in severe burns, emphasizing non-linear immune responses.

## Key findings

- The inflammatory response to burns is dynamic, not linear.
- Outcomes depend more on persistent dysregulated inflammation than initial cytokine levels.
- Compensatory mechanisms failure worsens outcomes.

## Abstract

Burn injury triggers a complex inflammatory cascade in which the interplay between pro- and anti-inflammatory mediators determines recovery or progression to sepsis, ventilator-associated pneumonia (VAP) or multi-organ dysfunction, and mortality. We systematically searched PubMed, Embase, Cochrane Library, Web of Science, and Scopus for studies published between 2006 and 2024, identifying 1883 records. We conducted a comprehensive systematic review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. After screening and eligibility assessment, 24 studies covering both pediatric and adult populations met the inclusion criteria. Data on cytokines, acute-phase proteins, complement fragments, and systemic inflammatory indices were synthesized narratively. The evidence indicates that the inflammatory response to burn injury is not a linear sequence of events but a dynamic and unstable equilibrium, where outcomes are determined less by the initial magnitude of cytokine release and more by the persistence of dysregulated inflammation or failure of compensatory mechanisms.