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Post Splenectomy Sepsis
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Post Splenectomy Sepsis
Last updated 3rd December 2020
Last updated on 20th November 2013 by Calum Murray
Background
- Patients with absent or dysfunctional spleen are at risk of overwhelming infection, particularly those due to encapsulated organisms.
- Commonest pathogen is Strep Pneumoniae, but H.Influenzae type B, N meningitidis and Malaria also pose significant risks.
Causes of Hyposplenism
- Commonest cause is surgical splenectomy
- Also occurs as a complication of certain medical conditions esp sickle cell disease and, to a lesser extent, coeliac disease.
Recognition
- The clue to diagnosis when hyposplenism not previously suspected is presence of Howell-Jolly bodies in peripheral blood.
- Howell-Jolly bodies are small round basophilic (blue) nuclear remnants seen in red cells that are normally cleared from circulation by spleen
Anti-infection Prophylaxis
- Education of the patient
- Appropriate vaccination
- Prophylactic antibiotics providing pneumococcal cover
Education of Patient
- Encourage patients to wear an alert bracelet and carry a card with information about their condition
- Educate patients about risks of overseas travel and of malaria in particular
- Make patient aware that breakthrough pneumococcal infection can occur despite vaccination and antibiotic prophylaxis
Vaccination
- All patients should receive Pneumococcal, H Influenzae type b and Meningococcal vaccines
- Ideally give 2 weeks before and 2 weeks after splenectomy
- Give as soon as is practicable after diagnosing non-surgical hyposplenism, though might be appropriate to delay if recovering from immunosuppression eg chemo for haem malignancy
- For full details of immunisation schedules click link to British Journal of Haematology (below)
Prophylactic Antibiotics
- Offer life long prophylactic antibiotics to patients at high risk of pneumococcal infection. Use penicillin V 250mg bd or 500mg od if compliance likely to be a problem, or erythromycin 250-500mg od if allergic to penicillin.
- High risk suggested by age <16 or >50 years, poor serological response to vaccine, previous invasive pneumococcal disease, splenectomy for haematological malignancy
- Patients not at high risk should be counselled regarding the risks and benefits of lifelong antibiotics and may choose to discontinue them eg amoxil 500mg tds orally.
- All patients should carry a supply of appropriate antibiotic for emergency use