Autotransfusion

As autotransfusion (MAT ) refers to the process in which you can during or after an operation, which is accompanied by a loss of blood, the blood of the patient from the operating site collect and recycle to get it promptly re - transfused to the patient. This method is used to reduce the need for allogeneic transfusions because there despite many tests always remains a residual risk of transfusion incidents.

The MAT is usually performed by the attending anesthesiologist requires a special art equipment and is much more complex and costly than the alternative method of Drainageblutretransfusion. An important advantage of the MAT to the last is the fact that the erythrocytes obtained ( or whole blood, depending on the method ) almost completely of unwanted foreign matter (eg, cell debris, inflammatory factors ) are exempted, leading to fewer side effects.

Especially in professional circles - - trivial name of the process of cell saver from the name of one of the most common devices for the MAT, the forwards. The " cell saver " centrifuged, the collected blood to separate the red blood cells that are ready after a washing process for autotransfusion. Purpose -oriented, other machines are known as the exquisitely well-known in cardiac surgery " Hemobag ", which is able to clean all components of the blood and to give away as a full blood concentrate again.

Contraindications

Contraindications to MAT provide operations on germ- contaminated (eg, peritonitis, osteomyelitis) or malignant neoplastic tissue dar. It would in these cases, the risk that one would the patient return bacteria or cancer cells in the bloodstream because the collected blood during centrifugation and washing, this could not be completely freed from bacteria or tumor cells. In Prostaoperationen was noted, for example, that in 16% of cases the tumor cells were present and 80 % of the collected blood had a high bacterial load. A scattering of these bacteria or tumor cells would be the result, with the consequences of a potential sepsis, respectively, tumor seeding. Therefore, the use of intraoperative mechanical autotransfusion should be avoided at Malignomoperationen or interference with bacterial load.