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A transfusion transmitted infection (TTI) is a virus, parasite, or other potential pathogen that can be transmitted in donated blood through a transfusion to a recipient. 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.
Post-transfusion purpura is an extremely rare complication that occurs after blood product transfusion and is associated with the presence of antibodies in the patient's blood directed against both the donor's and recipient's platelets HPA (human platelet antigen).
The cause of TRALI is currently not fully understood. 80–85% of cases are thought to be immune mediated. [5] [6] Antibodies directed toward human leukocyte antigens (HLA) or human neutrophil antigens (HNA) have been implicated, with transfused antibodies shown to bind antigens expressed on pulmonary endothelial cells to initiate acute inflammation in the lungs.
Blood for blood transfusion is screened for many blood-borne diseases. Additionally, a technique that uses a combination of riboflavin and UV light to inhibit the replication of these pathogens by altering their nucleic acids can be used to treat blood components prior to their transfusion, and can reduce the risk of disease transmission.
Transfusion hemosiderosis can cause permanent damage to tissues that may lead to death. [2] Tissue damage can remain even after chelation therapy. [2] Outcomes are usually worse in patients who require blood transfusions compared to those who can have alternative therapies. [2] Cardiomyopathy and cardiac arrhythmia are often a cause of death. [1]
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 ...
An acute hemolytic transfusion reaction (AHTR), also called immediate hemolytic transfusion reaction, is a life-threatening reaction to receiving a blood transfusion. AHTRs occur within 24 hours of the transfusion and can be triggered by a few milliliters of blood. The reaction is triggered by host antibodies destroying donor red blood cells.
This condition is caused by the deceased liver's decreased ability to esterificate cholesterol. [60] Thalassemia: D56: D013789 Thalassaemia is an inherited blood disorder which is caused by genetic mutations that causes the body to make fewer healthy red blood cells and less hemoglobin due to lack of protein chains. Triosephosphate isomerase ...