This retrospective study nicely demonstrates that the use of a simple algorithm taking into account the type of operation and the preoperative hemoglobin concentration can be effective in identifying patients likely to require perioperative allogeneic blood transfusion.

– P. Van der Linden

Although no clear transfusion trigger was used, the algorithm allows a significant reduction in provided crossmatched allogeneic blood units, predeposit of autologous blood, and iron and EPO use. It is not intended to reduce preoperative blood grouping and antibody screening in all patients being at risk of perioperative acute bleeding complications.

– V. Kretschmer