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The peritoneum is a vital membrane that lines the abdominal cavity and covers most of the organs within it. It plays a crucial role in protecting the organs, providing a smooth surface for their movement, and facilitating various physiological processes. Understanding the anatomy and function of the peritoneum is essential for comprehending the complexities of the abdominal region.
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[Pathophysiology of peritonitis].

K Beyer1, P Menges1, W Keßler1

  • 1Klinik für Chirurgie, Viszeral-, Thorax- und Gefäßchirurgie, Universitätsmedizin Greifswald, Ferdinand-Sauerbruch-Straße, 17475, Greifswald, Deutschland.

Der Chirurg; Zeitschrift Fur Alle Gebiete Der Operativen Medizen
|December 15, 2015
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Peritonitis leading to sepsis has high mortality. Understanding the immune response, including hyperinflammation and immunosuppression, is crucial for developing effective sepsis immunotherapies.

Keywords:
ApoptosisImmunosuppressionInflammationPeritonitisSepsis

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Area of Science:

  • Immunology
  • Pathophysiology
  • Sepsis Research

Background:

  • Peritonitis progressing to sepsis is a critical condition with high mortality.
  • Local peritoneal cells initiate the inflammatory cascade, recruiting neutrophils and monocytes.
  • Sepsis involves a systemic inflammatory response syndrome (SIRS) due to microbial products entering circulation.

Purpose of the Study:

  • To elucidate the complex immune mechanisms underlying sepsis progression from peritonitis.
  • To highlight the dual nature of inflammation and immunosuppression in sepsis.
  • To emphasize the need for precise immune status assessment for immunotherapy development.

Main Methods:

  • Review of cellular and molecular events in peritonitis-induced sepsis.
  • Analysis of immune cell recruitment and function (neutrophils, monocytes, lymphocytes).
  • Examination of cytokine-mediated systemic effects and apoptosis induction.

Main Results:

  • Initial neutrophil influx is followed by monocyte differentiation into inflammatory macrophages.
  • Neutrophil activity is curtailed by apoptosis, while lymphocytes undergo apoptosis leading to immunosuppression.
  • Sepsis is characterized by a paradoxical coexistence of hyperinflammation and profound immunosuppression.

Conclusions:

  • Effective sepsis immunotherapy requires a thorough understanding of the patient's current immune status.
  • The balance between inflammatory and anti-inflammatory responses is critical in sepsis pathogenesis.
  • Targeting both hyperinflammation and immunosuppression may be key to improving sepsis treatment outcomes.