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Local and systemic immune response to surgery under balanced anaesthesia in children

A Mattila-Vuori1, M Salo, E Iisalo

  • 1Department of Anaesthesiology and Medicity Research Laboratory, Turku University Central Hospital, FIN-20520 Turku, Finland.

Paediatric Anaesthesia
|July 8, 2000
PubMed

Insights

This study reveals significant perioperative immune changes in children undergoing surgery. Immune cells in the blood and surgical wound dynamically balance, impacting the overall immune response.

Area of Science:

  • Pediatric Surgery
  • Immunology
  • Anesthesiology

Background:

  • Perioperative immune responses are complex and can be influenced by anesthesia and surgical stress.
  • Understanding these changes is crucial for optimizing patient recovery and outcomes in pediatric surgical patients.

Purpose of the Study:

  • To investigate perioperative immune system alterations in young boys undergoing elective inguinal surgery.
  • To compare immune cell dynamics between peripheral blood and surgical wound sites.

Main Methods:

  • Blood samples were collected from 20 boys (0.5-3 years) pre-anesthesia, and at 4 and 24 hours post-anesthesia.
  • Wound cells were harvested using the Cellstick device at 4 or 24 hours post-anesthesia.
  • Flow cytometry and lymphocyte proliferation assays were used to analyze immune cell populations and function.

Main Results:

  • Peripheral blood showed decreased lymphocyte counts, increased activated T and B lymphocytes, and decreased T helper and cytotoxic cells.
  • Immune cell percentages, specifically T helper cells and B lymphocytes, were lower in the wound compared to peripheral blood.
  • Mitogen-induced lymphocyte proliferation responses were diminished post-operatively.

Conclusions:

  • Pediatric surgery under balanced anesthesia induces significant perioperative immune system changes.
  • A dynamic balance exists between immune effector cells in the peripheral blood and surgical wound, a novel finding.
  • These findings highlight the intricate immune response during the perioperative period in children.

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