A Rational Approach to Crossmatching Blood for Elective Surgery

A group-and-screen system was introduced for selected surgical procedures to improve the cost-effectiveness of the hospital blood transfusion service. The mean crossmatch-transfusion ratio for eleven procedures was 11.1 but fell to 3.3 after the change. The overall crossmatch-transfusion ratio in the hospital improved from 2.7 to 2.2 (p <0.001) and blood wastage by expiry fell from 12% to 5% (p <0.02). The mean age of blood being transfused also improved slightly from 12.3 days to 10.4 days (p <0.001). No problems have arisen from the group-and-screen system to date. It has led to improvement in the efficiency and cost-effectiveness of the hospital blood bank and resulted in fresher blood being transfused.

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