Autologous blood transfusion is the return of a patient's own blood to their body, rather than blood collected from a separate donor, most often used when significant blood loss is expected during a planned surgery. In pre-deposit autologous donation, a patient's blood is collected and stored in the weeks before a scheduled operation for use during or after that same surgery; in intraoperative blood salvage, blood lost during the operation itself is collected, filtered and returned to the patient in the same procedure. Because the blood returned is the patient's own, autologous transfusion avoids the risk of transfusion-transmitted infection and most immune reactions associated with donor blood, though it does not eliminate every risk of transfusion and is not suitable for every patient or every type of surgery.
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Autologous blood transfusion is a transfusion medicine procedure within hematology.
Sources
1. Wikipedia
Wikipedia contributors, Wikimedia FoundationAutotransfusion - History section
the first documented use of autologous blood transfusion was in 1818
https://en.wikipedia.org/wiki/Autotransplantation, lead section
Autotransplantation or autologous transplantation is the surgical transplantation of organs, tissues or even particular proteins from one site in an individual's body to another site within the same person.
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