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Immune balance in critically ill patients
1Department of Anesthesiology and Critical Care Medicine, University of Pittsburgh School of Medicine, PA, USA. pinskymr@anes.upmc.edu
Archivum Immunologiae Et Therapiae Experimentalis
|February 24, 2001
Summary
Severe sepsis involves a complex immune response with both activation and suppression. The typical immune state is a mild pro-inflammatory condition coupled with hyporesponsiveness.
Area of Science:
- Immunology
- Critical Care Medicine
- Pathophysiology
Background:
- The systemic inflammatory response is a key indicator of immune system activation.
- Severe sepsis presents a complex immune milieu characterized by coexisting immune activation and suppression.
- The interplay between these immune states dictates patient outcomes in sepsis.
Purpose of the Study:
- To elucidate the dominant immunologic state in patients with severe sepsis.
- To understand the interaction between immune activation and suppression in sepsis.
- To define the characteristic immune profile of severe sepsis.
Main Methods:
- Analysis of immune markers in the blood of patients with severe sepsis.
- Assessment of both pro-inflammatory and anti-inflammatory immune responses.
- Evaluation of host parenchymal responses in relation to immune status.
Main Results:
- Severe sepsis is not dominated by profound immune activation or suppression alone.
- Patients with severe sepsis exhibit a combined low-grade pro-inflammatory state.
- A significant feature is the presence of immune hyporesponsiveness alongside inflammation.
Conclusions:
- The typical immunologic state in severe sepsis is a balance between mild inflammation and suppressed immune response.
- Understanding this dual immune state is crucial for defining sepsis progression.
- Immune hyporesponsiveness is a defining characteristic of the usual immunologic state in severe sepsis.