How I use clinical decision support to improve red blood cell utilization.

Despite 20 years of published medical society guidelines for blood transfusion and a pivotal clinical trial in 1999 providing Level 1 evidence that restrictive transfusion practices can be utilized safely, blood transfusions did not begin to decline in the United States until 2010. Widespread adoption of electronic medical records allowed implementation of computerized systems such as clinical decision support (CDS) with best practice alerts to improve blood utilization. We describe our own experience using well-designed and highly targeted CDS to promote restrictive transfusion practices and improve red blood cell utilization, with a 42% reduction in blood transfusions from 2009 through 2015, accompanied by improved clinical outcomes.