Patient blood management in cardiac surgery: Results.

OBJECTIVE: The main objective of the study was to evaluate the effect of implementing a blood-saving programme in patients undergoing elective cardiac surgery with an analysis of the transfusion rate and complications.

MATERIALS AND METHODS: A single-centre, observational, retrospective, comparative study which included 604 consecutive patients older than 15 years old undergoing elective cardiac surgery. Two groups of patients were created according to whether or not they were included in a blood-saving protocol, and analysed between December 2012 and July 2013 (293 patients, prep group) and April 2015 to May 2016 (311 patients, posp group).

RESULTS: The overall blood product transfusion rate was reduced in the posp group (89.5 vs. 67.6%; P<0.001), as well as individually: red blood cell concentrates (83.6%; P<0.001), fresh frozen plasma (36.2 vs. 21.2%; P<0.001), platelets (40.8 vs. 32.7; P<0.001). By contrast, fibrinogen use increased from 16.4 to 49% (P<0.001). Postoperative complications were similar in both groups, except for pulmonary complications (57.8 vs. 43.1%; P<0.001). Length of hospital stay was similar in both groups except in the Critical Care Unit with longer stay for the prep group (5.81±8.00 vs. 4.18±4.38; P=0.002). Mortality did not change.

CONCLUSIONS: The implementation of a blood-saving programme in the cardiac surgery area has favourable consequences, such as a saving in blood product and a reduction of pulmonary complications, although without decreasing the mortality rate.