system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Aged, Blood Transfusion, Blood Transfusion, Autologous, Double-Blind Method, Female, Humans, Male, Middle Aged, Plasma, Platelet Count, Prospective Studies, Reoperation, Sternum, Vascular Surgical Procedures.
user
Does autologous platelet-rich plasma reduce transfusion of homologous blood products in patients undergoing repeat valvular surgery? Context: Patients undergoing cardiac surgery employing cardiopulmonary bypass frequently require transfusion of homologous blood products and, therefore, are exposed to the risk of transfusions. Autologous platelet-rich plasma administration may reduce homologous transfusion and attendant risks. In a blinded, randomized fashion, patients undergoing repeat sternotomy and valvular surgery received either a sham product (n = 28) or autologous platelet-rich plasma (n = 28) at the conclusion of cardiopulmonary bypass. Perioperative blood loss, coagulation profiles, and transfusion requirements were compared between the two groups. In the first 24 h postoperatively, both the platelet-rich plasma and sham groups received a median of 10.5 units of homologous blood products. Total median perioperative homologous transfusion requirements were 13 and 11.5 units for the platelet-rich plasma and sham groups, respectively. There was no significant difference in intraoperative or postoperative bleeding between the groups.
assistant
Autologous platelet-rich plasma did not reduce perioperative bleeding or transfusion requirements in repeat valvular surgery. Final Decision: no