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Post-splenectomy leukocytosis

Last edited: 4/15/2026

Overview

Post-splenectomy leukocytosis refers to an elevated white blood cell count observed after splenectomy, reflecting compensatory mechanisms due to the loss of splenic function in filtering and modulating immune responses 1.

Diagnosis

  • Elevated white blood cell count post-splenectomy 1.
  • Identification of patients through medical history of splenectomy or functional hyposplenism 13.
  • No specific diagnostic tests mentioned beyond clinical evaluation and history 13.
  • Management

  • Immunization against Streptococcus pneumoniae, Neisseria meningitidis, and influenza is crucial 1.
  • No specific pharmacological treatments for leukocytosis are mentioned; focus on prophylactic measures 1.
  • Regular follow-up and review of vaccination status by healthcare providers 3.
  • Special Populations

  • No specific recommendations provided for pregnancy, pediatrics, elderly, or comorbidities in the given abstracts 123.
  • Key Recommendations

  • Patients who have undergone splenectomy should receive vaccinations against Streptococcus pneumoniae, Neisseria meningitidis, and influenza to prevent overwhelming postsplenectomy infection (Evidence: Strong 1).
  • General practitioners should systematically review the records of splenectomised patients to ensure adherence to prophylactic measures and vaccination schedules (Evidence: Moderate 3).
  • Public health institutions should implement educational measures and strategies to increase vaccine coverage among splenectomised patients (Evidence: Moderate 2).
  • References

    1 Ladhani SN, Fernandes S, Garg M, Borrow R, de Lusignan S, Bolton-Maggs PHB. Prevention and treatment of infection in patients with an absent or hypofunctional spleen: A British Society for Haematology guideline. British journal of haematology 2024. link 2 Bianchi FP, Stefanizzi P, Di Lorenzo A, Cuscianna E, Tafuri S, Germinario CA. Vaccine coverage for recommended vaccines among splenectomised patients in Apulia, South Italy: a retrospective cohort study. BMJ open 2023. link 3 Cummins A, Millership S. Local review of the provision of prophylaxis and advice to patients without functioning spleens. Communicable disease and public health 2001. link

    Original source

    1. [1]
      Prevention and treatment of infection in patients with an absent or hypofunctional spleen: A British Society for Haematology guideline.Ladhani SN, Fernandes S, Garg M, Borrow R, de Lusignan S, Bolton-Maggs PHB British journal of haematology (2024)
    2. [2]
      Vaccine coverage for recommended vaccines among splenectomised patients in Apulia, South Italy: a retrospective cohort study.Bianchi FP, Stefanizzi P, Di Lorenzo A, Cuscianna E, Tafuri S, Germinario CA BMJ open (2023)
    3. [3]
      Local review of the provision of prophylaxis and advice to patients without functioning spleens.Cummins A, Millership S Communicable disease and public health (2001)

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