Autotransfusion with cell saver for off-pump coronary artery bypass surgery: a randomized trial |
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Authors: | Damgaard Sune Steinbrüchel Daniel A |
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Institution: | Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen University Hospital, Denmark. sunedamgaard@dadlnet.dk |
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Abstract: | OBJECTIVES: Off-pump coronary surgery reduces transfusions, however, many patients still receive blood. This trial aims to clarify the effect of using a cell saver intraoperatively. DESIGN: In 60 patients shed blood was collected in the cell saver reservoir intraoperatively; randomization and processing or discharge were performed immediately after surgery. Primary outcome measures: proportion of patients receiving allogeneic blood, and average number of units per patient. Secondary outcome measures: blood loss, hemoglobin levels, complications, and costs. RESULTS: Cell saver group versus control group; received transfusions: 17/30 vs. 14/29 (p = 0.28), allogeneic units: median 1 (interquartile range 0 - 2) vs. 2 (IQR 0 - 7) (p = 0.06), intraoperative net blood loss: median 300 ml (IQR 193 - 403) vs. 610 ml (IQR 450 - 928) (p < 0.001). Control group patients had more complications leading to transfusion. Hemoglobin levels and costs were comparable between groups. CONCLUSIONS: Use of cell saver reduced intraoperative net blood loss and seemed to reduce transfusions by 1 unit per patient, however, this was probably attributable to more complications leading to transfusion in the control group. In the future larger trials are necessary. |
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