Abstract
The risk of bacterial sepsis in the surgically or functionally asplenic host is reviewed. The lowest morbidity occurs in patients splenectomized because of trauma to the spleen; the highest morbidity occurs in patients splenectomized for thalassemia. There is approximately a 50% mortality associated with sepsis secondary to asplenia and the pneumococcus is responsible for over 50% of the cases. Normal spleen function and alteration in host defense occurring as a consequence of asplenia is discussed. Finally, alternatives to and indications for splenectomy as well as prophylactic measures are considered. It is concluded that, at the present time, antibiotic coverage for an indefinite period of time may be indicated for surgically or functionally asplenic patients.
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