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Hyposplenism is used to describe reduced ('hypo-') splenic functioning, but not as severely affected as with asplenism. Functional asplenia occurs when splenic tissue is present but does not work well (e.g. sickle-cell disease, polysplenia ) – such patients are managed as if asplenic – while in anatomic asplenia , the spleen itself is absent.
The spleen is an organ within the lymphatic system and its primary function is to filter blood. However, the spleen also plays a key role in immune responses as it detects pathogens within the blood and secretes phagocytes to fight potential infection. Without these immune functions, individuals with isolated congenital asplenia are extremely ...
Howell–Jolly bodies are seen with markedly decreased splenic function. Common causes include asplenia (post-splenectomy) or congenital absence of spleen (right atrial appendage isomerism). Spleens are also removed for therapeutic purposes in conditions like hereditary spherocytosis , trauma to the spleen, and autosplenectomy caused by sickle ...
An autosplenectomy (from 'auto-' self, '-splen-' spleen, '-ectomy' removal) is a negative outcome of disease and occurs when a disease damages the spleen to such an extent that it becomes shrunken and non-functional. [1] The spleen is an important immunological organ that acts as a filter for red blood cells, triggers phagocytosis of invaders ...
Alpha-thalassemia and beta-thalassemia [2] Hemoglobin C Disease; Iron deficiency anemia; Post-splenectomy: A major function of the spleen is the clearance of opsonized, deformed, and damaged erythrocytes by splenic macrophages. If splenic macrophage function is abnormal or absent because of splenectomy, altered erythrocytes will not be removed ...
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Overwhelming post-splenectomy sepsis (OPSS) [1] Specialty: Infectious disease: Usual onset: 24–48 hours following presentation with mild viral symptoms [2] Causes: Exposure to pathogens following splenectomy or asplenia: Risk factors: Splenectomy in the past 2–3 years, removal of spleen for hematological reasons, being under the age of 2 [2 ...
Partial splenectomy: Since the spleen is important for protecting against encapsulated organisms, sepsis caused by encapsulated organisms is a possible complication of splenectomy. [7] The option of partial splenectomy may be considered in the interest of preserving immune function. Research on outcomes is currently limited, [7] but favorable. [8]