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Neutropenia itself is a rare entity, but can be clinically common in oncology [35] and immunocompromised individuals as a result of chemotherapy (drug-induced neutropenia). Additionally, acute neutropenia can be commonly seen from people recovering from a viral infection or in a post-viral state.
Neutropenia, a subtype of leukopenia, refers to a decrease in the number of circulating neutrophil granulocytes, the most abundant white blood cells. The terms leukopenia and neutropenia may occasionally be used interchangeably, as the neutrophil count is the most important indicator of infection risk. Agranulocytosis is an acute form of ...
Approximately 50% of patients with febrile neutropenia develop an infection, of which 20% with profound neutropenia will develop bacteremia. [1] Gram-positive bacteria are now the most common pathogens causing febrile neutropenia, with many of these infections resulting from long-term central venous catheters. [1]
Neutropenia indicates a deficiency of neutrophils (the most common granulocyte cell) only. [citation needed] To be precise, neutropenia is the term normally used to describe absolute neutrophil counts (ANCs) of less than 500 cells per microlitre, whereas agranulocytosis is reserved for cases with ANCs of less than 100 cells per microlitre.
For example, the most common cause of acquired neutropenia is drug-induced, so an individual may have symptoms of medication overdose or toxicity. Treatment is also aimed at the underlying cause of the neutropenia. [21] One severe consequence of neutropenia is that it can increase the risk of infection. [19]
Low neutrophil counts are termed neutropenia. This can be congenital (developed at or before birth) or it can develop later, as in the case of aplastic anemia or some kinds of leukemia. It can also be a side-effect of medication, most prominently chemotherapy. Neutropenia makes an individual highly susceptible to infections.
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Autoimmune neutropenia (AIN) is a form of neutropenia which is most common in infants and young children [1] where the body identifies the neutrophils as enemies and makes antibodies to destroy them. Primary autoimmune neutropenia, another name for autoimmune neutropenia, is an autoimmune disease first reported in 1975 that primarily occurs in ...