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[Immunologic alterations after splenectomy for trauma]

T Shimazu1, T Tabata, H Tanaka

  • 1Department of Traumatology and Emergency Medicine, Osaka University, Medical School, Japan.

Nihon Geka Gakkai Zasshi
|January 1, 1995
PubMed
Summary
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Splenectomy in trauma patients impairs cellular immunity, affecting T cells and lymphocyte function for up to a year. Humoral immunity recovers, but anti-pneumococcal antibody levels remain low, warranting vaccination.

Area of Science:

  • Immunology
  • Trauma Surgery
  • Clinical Medicine

Context:

  • Splenectomy is a common procedure for trauma patients.
  • The long-term effects of splenectomy on immune function in trauma survivors are not fully understood.
  • Previous studies suggest significant immune deficits post-splenectomy.

Purpose:

  • To investigate the serial changes in humoral and cellular immunologic indices in adult blunt trauma patients following splenectomy.
  • To assess immune function up to one year post-splenectomy.
  • To evaluate the impact of splenectomy on specific immune components like immunoglobulins, antibodies, and lymphocyte subpopulations.

Summary:

  • Thirteen adult trauma patients undergoing splenectomy were monitored for immunologic function up to one year.

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  • Humoral immunity (complements, immunoglobulins) recovered post-splenectomy, with some Ig-M levels increasing contrary to prior reports.
  • Cellular immunity remained impaired, evidenced by decreased T cells, inverted helper/suppressor ratios, and suppressed lymphocyte blast formation.
  • Anti-pneumococcal antibody levels were insufficient in most patients at one year.

    • Impact:

    • Demonstrates sustained impairment of cellular immunity and delayed antibody response after splenectomy in trauma patients.
    • Highlights potential differences in immune response in Japanese populations.
    • Provides evidence supporting the prophylactic use of anti-pneumococcal vaccination in asplenic trauma patients to prevent infections.