• Steven M Frank, Michael J Oleyar, Paul M Ness, and Aaron A R Tobian.
• From the Department of Anesthesiology and Critical Care Medicine (S.M.F., M.J.O.); and Department of Pathology, Division of Transfusion Medicine (P.M.N., A.A.R.T.), The Johns Hopkins Medical Institutions, Baltimore, Maryland.
• Anesthesiology. 2014 Sep 1; 121 (3): 501-9.

BackgroundUsing blood utilization data acquired from the anesthesia information management system, an updated institution-specific maximum surgical blood order schedule was introduced. The authors evaluated whether the maximum surgical blood order schedule, along with a remote electronic blood release system, reduced unnecessary preoperative blood orders and costs.MethodsAt a large academic medical center, data for preoperative blood orders were analyzed for 63,916 surgical patients over a 34-month period. The new maximum surgical blood order schedule and the electronic blood release system (Hemosafe; Haemonetics Corp., Braintree, MA) were introduced mid-way through this time period. The authors assessed whether these interventions led to reductions in unnecessary preoperative orders and associated costs.ResultsAmong patients having surgical procedures deemed not to require a type and screen or crossmatch (n = 33,216), the percent of procedures with preoperative blood orders decreased by 38% (from 40.4% [7,167 of 17,740 patients] to 25.0% [3,869 of 15,476 patients], P < 0.001). Among all hospitalized inpatients, the crossmatch-to-transfusion ratio decreased by 27% (from 2.11 to 1.54; P < 0.001) over the same time period. The proportion of patients who required emergency release uncrossmatched blood increased from 2.2 to 3.1 per 1,000 patients (P = 0.03); however, most of these patients were having emergency surgery. Based on the realized reductions in blood orders, annual costs were reduced by $137,223 ($6.08 per patient) for surgical patients, and by $298,966 ($6.20/patient) for all hospitalized patients.ConclusionImplementing institution-specific, updated maximum surgical blood order schedule-directed preoperative blood ordering guidelines along with an electronic blood release system results in a substantial reduction in unnecessary orders and costs, with a clinically insignificant increase in requirement for emergency release blood transfusions.

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