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However, in situations where the recipient is severely immunocompromised, or when the donor and recipient HLA type is similar (as can occur in directed donations from first-degree relatives), the recipient's immune system is not able to destroy the donor lymphocytes. This can result in transfusion associated graft-versus-host disease.
A patient may be receiving blood due to any number of causes and may have heart or kidney dysfunction which can lead to excess fluid. Upon transfusion of the blood product, the patient is overwhelmed by the excess fluid and develops symptoms related to volume overload. [citation needed]
The use of greater amount of red blood cells has been suggested to increase the risk of infections, not only transfusion-transmitted infections, but also due to a phenomenon known as transfusion-related immunomodulation (TRIM). TRIM may be caused by macrophages and their byproducts. [42]
It is often impossible to distinguish TRALI from acute respiratory distress syndrome (ARDS). The typical presentation of TRALI is the sudden development of shortness of breath, severe hypoxemia (O 2 saturation <90% in room air), low blood pressure, and fever that develop within 6 hours after transfusion and usually resolve with supportive care within 48 to 96 hours.
The term is usually limited to known pathogens, but also sometimes includes agents such as simian foamy virus which are not known to cause disease. Following a number of highly publicized incidents throughout the 1970's-1980's, preventing disease transmission through blood donation is addressed through a series of safeguards.
Chorea-acanthocytosis (ChAc)(also known as Levine-Critchley syndrome, acanthocytosis with neurologic disorder, neuroacanthocytosis, and choreoacanthocytosis) [53] is a rare hereditary disease caused by a mutation of the gene that directs structural proteins in red blood cells. It belongs to a group of four diseases characterized as ...
Various diseases can lead to transfusion-dependent anemia, most notably myelodysplastic syndromes (MDS) and thalassemia. [4] [5] Due to the number of diseases that can cause transfusion-dependent anemia, diagnosing it is more complicated. Transfusion dependence occurs when an average of more than 2 units of blood transfused every 28 days is ...
Due to the high mortality of untreated TTP, a presumptive diagnosis of TTP is made even when only microangiopathic hemolytic anemia and thrombocytopenia are seen, and therapy is started. Transfusion is contraindicated in thrombotic TTP, as it fuels the coagulopathy. Since the early 1990s, plasmapheresis has become the treatment of choice for TTP.