Methods
Perioperative blood conservation measures were established in our institution in 2012. Medical records that included transfusion data and clinical outcomes of patients who underwent isolated primary CABG from 2009 to 2012 (group A) and 2013 to 2016 (group B) were compared. Most operations were performed by a single surgeon (RA). Clinical outcomes (mortality, morbidity, and postoperative length of stay) and transfusions were measured as endpoints. Groups were compared using simple descriptive statistics and a chi-square test or Wilcoxon rank sum test as appropriate. A p-value <.05 was considered significant.