• R A Kearney, J K Rosales, and W J Howes.
• Department of Anaesthesia, Izaak Walton Killam Children's Hospital, Dalhouse University, Halifax, Nova Scotia.
• Can J Anaesth. 1989 Jul 1;36(4):473-7.

AbstractAssessment and accurate replacement of blood loss during primary craniosynostosis repair is difficult due to patient size and surgical technique. Eighty-five charts of all patients undergoing primary craniosynostosis repair over a 15-year period were reviewed to determine blood loss and to assess blood transfusion practices both intraoperatively and postoperatively. Blood loss was calculated on the basis of estimated red cell mass (ERCM). Blood transfusion management was considered appropriate if the postoperative or posttransfusion ERCM was within 15 per cent of the preoperative value. Isolated sagittal craniectomy was the most common operation performed (60 per cent). Mean blood loss for sagittal craniectomies was 24 per cent of estimated blood volume (EBV) or approximately 20 ml.kg-1 and for metopic craniectomies 42 per cent of EBV (P less than 0.05). Intraoperatively, 70 per cent of all patients were appropriately managed with respect to blood transfusion. Postoperatively only 29 per cent of patients receiving transfusions were transfused appropriately. At our institution, intraoperative blood transfusion practices are appropriate, but postoperative transfusions are frequently unnecessary.

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