Retrograde Autologous Priming of the Cardiopulmonary Bypass Circuit Reduces Blood Transfusion in Small Adults: a Prospective, Randomized Trial
Extreme haemodilution occurring with cardiopulmonary bypass imposes a primary risk factor for blood transfusion in small adult cardiac surgical patients. Priming of the cardiopulmonary bypass circuit with patients' own blood [retrograde autologous priming (RAP)] is a technique used to limit haemodilution and reduce transfusion requirements.