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Studie: Retransfusion of filtered shed blood in primary total hip and knee arthroplasty

Filters in Autologous blood retransfusion systems affect the amount of blood cells retransfused in total knee arthroplasty. A pilot study. 

Department of Orthopaedic Surgery, Atrium Medical Center, Heerlen, the Nederlands

Moonen A.F.C., Pilot P., Meijers W.G.H., Waelen R.A.J., Leers M.P.G., Grimm B., Heyligers I.G.
Acta Orthop. Belg., 2008 / 74:2 / pp 210-215
  • The aim of the study was to evaluate whether filters integrated in postoperative retransfusion systems affect the amount of blood cells retransfused after total knee arthroplasty.
  • The study included 22 patients undergoing total knee arthroplasty. Hb, free Hb, haematocrit, mean corpuscular volume, erythrocytes, leukocytes, & thrombocytes were assessed. Blood samples were taken from the autotransfusion systems at the beginning of retransfusion. Blood Hb levels were measured intravenously preoperatively and after surgery on Day 1 and 3.
  • The filter integrated in the Bellovac ABT system did not show a significantly decreased amount of leukocytes and erythrocytes compared with the other system investigated. As a result the Hb level of retransfused shed blood with the Bellovac ABT system was significantly higher than with the other system.