What are the disorders associated with blood transfusion?
What are the disorders associated with blood transfusion?
Viral agents that are capable of being transmitted through blood transfusion include the following:
- Human immunodeficiency virus (HIV)
- Hepatitis viruses.
- West Nile virus (WNV)
- Cytomegalovirus (CMV)
- Human T-cell lymphotrophic viruses (HTLVs)
- Parvovirus B19.
What are the risks of platelet transfusion?
Common side effects of platelets include:
- Hemolytic transfusion reactions.
- Febrile non-hemolytic reactions.
- Allergic reactions ranging from hives to severe (anaphylaxis)
- Septic reactions.
- Transfusion Related Acute Lung Injury (TRALI)
- Circulatory overload.
- Transfusion associated graft versus host disease.
What is platelet transfusion used for?
Platelets are commonly transfused to patients with low platelet counts or patients with platelet dysfunction who are bleeding or at high risk of bleeding. All platelet components are leucodepleted and irradiated prior to release to the hospital.
Can blood transfusions cause thrombocytopenia?
Post-transfusion purpura (PTP) is a rare and delayed transfusion reaction that typically occurs in multiparous women. It occurs after transfusion of any platelet-containing product (red blood cells or platelets) causing acute profound thrombocytopenia [1].
How are platelets donated?
During the platelet donation, blood is removed from one arm, and then a centrifuge separates out the platelets. The rest of the blood then returns to the donor through the other arm. More platelets are collected this way than with whole-blood donation.
What medication increases platelets?
Drugs that boost platelet production. Medications such as romiplostim (Nplate) and eltrombopag (Promacta) help your bone marrow produce more platelets. These types of drugs can increase your risk of blood clots.
When is platelet transfusion indicated?
1. Platelet transfusion is indicated for patients with clinically significant bleeding in whom thrombocytopenia is thought to be a major contributory factor, even if the platelet count is >10×109/L. 2. In patients with critical bleeding requiring massive blood transfusion.
What are the causes of thrombocytopenia?
What causes thrombocytopenia?
- Alcohol use disorder and alcoholism.
- Autoimmune disease which causes ITP.
- Bone marrow diseases, including aplastic anemia, leukemia, certain lymphomas and myelodysplastic syndromes.
- Cancer treatments like chemotherapy and radiation therapy.
When does hemolytic transfusion reaction occur?
Acute hemolytic reactions happen within 24 hours of transfusion and delayed hemolytic reactions happen after 24 hours. Delayed reactions usually occur two weeks after but can go up to 30 days post transfusion.
What are the indications for plaqueplatelet transfusions?
Platelet transfusions may be given for thrombocytopenia or platelet dysfunction to treat active platelet-related bleeding or as prophylaxis in those at serious risk of bleeding.
What are the limitations of platelet transfusions in patients with ITP?
Platelet transfusions in patients with autoimmune destruction of platelets such as idiopathic thrombocytopenic purpura (ITP) should not be transfused in the absence of bleeding because the transfused platelets will be quickly removed similarly to the patient’s own platelets without clinical benefit.
Are Platelet transfusions safe in patients with post transfusion purpura?
Platelet transfusions are controversial in patients with Post Transfusion Purpura since platelet-specific antibodies against high-frequency platelet antigens are part of the pathophysiology of this potentially fatal disorder.
What is the effect of platelet transfusions on immune system?
Platelet transfusions may induce formation of HLA antibodies and rarely platelet specific antibodies that may cause immune refractoriness for future transfusions, particularly for patients that require numerous platelet transfusions.