Search results
Results from the WOW.Com Content Network
Universal leukoreduction is currently not practiced in all countries. [citation needed]As of 2008, most developed nations have adopted universal leukoreduction of transfusions (defined as the routine application of this blood-processing step to all units of whole blood, red blood cells, and platelets prior to storage) with the notable exception of the United States. [8]
For example, in patients undergoing surgery, a level below 50×10 9 /L is associated with abnormal surgical bleeding, and regional anaesthetic procedures such as epidurals are avoided for levels below 80×10 9 /L. [68] Platelets may also be transfused when the platelet count is normal but the platelets are dysfunctional, such as when an ...
White blood cells – due to the effective inactivation of white blood cells in donated blood products, riboflavin and UV light treatment may be used as an alternative to gamma-irradiation for the prevention of transfusion-associated graft-versus-host disease (TA-GVHD), [7] a serious blood transfusion-related complication.
Prevention includes gamma irradiation of the lymphocyte-containing blood components such as red blood cells, platelets and granulocytes. Irradiated blood components should be issued in the following situations: [7] Intrauterine transfusions; Prematurity, low birthweight, or erythroblastosis fetalis in newborns; Congenital immunodeficiencies
Blood irradiation therapy is an alternative medical procedure in which the blood is exposed to low-level light (often laser light) for therapeutic reasons. [1] The practice was originally developed in the United States, [ 1 ] but most recent research on it has been conducted in Germany (by UV lamps ) and in Russia (in all variants).
Platelet transfusions came into medical use in the 1950s and 1960s. [1] [5] It is on the World Health Organization's List of Essential Medicines. [6] [7] Some versions of platelets have had the white blood cells partially removed or been gamma irradiated which have specific benefits for certain populations. [8]
Washed red blood cells are red blood cells that have had most of the plasma, platelets and white blood cells removed and replaced with saline or another type of preservation solution. [ 1 ] [ 2 ] The most common reason for using washed red blood cells in transfusion medicine is to prevent the recurrence of severe allergic transfusion reactions ...
The blood may also be irradiated, which destroys the DNA in the white cells and prevents graft versus host disease, which may happen if the blood donor and recipient are closely related, and is also important for immunocompromised patients. Other modifications, such as washing the RBCs to remove any remaining plasma, are much less common.