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The most frequent cause of autosplenectomy is sickle cell anemia [10] which causes progressive splenic hypofunction over time. Increased deoxygenation causes sickling of red blood cells, which adhere to the spleen wall and splenic macrophages causing ischemia . [ 2 ]
Due to underlying diseases that destroy the spleen (autosplenectomy), e.g. sickle-cell disease. Celiac disease: unknown physiopathology. [6] In a 1970 study, [7] it was the second most common cause of abnormalities of red blood cells linked to hyposplenism, after surgical splenectomy.
A 28-year follow-up of 740 World War II veterans who had their spleens removed on the battlefield showed a significant increase in the usual death from pneumonia (6 deaths rather than the expected 1.74) and an increase in the deaths from ischemic heart disease (41 deaths rather than the expected 30.26) but not from other conditions. [16]
The following is a list of the causes of human deaths worldwide for different years arranged by their associated mortality rates. In 2002, there were about 57 million deaths. In 2002, there were about 57 million deaths.
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
Splenic infarction is a condition in which blood flow supply to the spleen is compromised, [1] leading to partial or complete infarction (tissue death due to oxygen shortage) in the organ. [2] Splenic infarction occurs when the splenic artery or one of its branches are occluded, for example by a blood clot. [3]
Spleens are also removed for therapeutic purposes in conditions like hereditary spherocytosis, trauma to the spleen, and autosplenectomy caused by sickle cell anemia. Other causes are radiation therapy involving the spleen, such as that used to treat Hodgkin lymphoma. Howell–Jolly bodies inside of two normoblasts (center) in bone marrow ...
The crude death rate is defined as "the mortality rate from all causes of death for a population," calculated as the "total number of deaths during a given time interval" divided by the "mid-interval population", per 1,000 or 100,000; for instance, the population of the United States was around 290,810,000 in 2003, and in that year, approximately 2,419,900 deaths occurred in total, giving a ...