Hemodynamics, fluids & transfusion
Development of an optimal maximum surgical blood ordering schedule to achieve a prespecified crossmatch-to-transfusion ratio
Authors' conclusion
Our methodology provides an automated, optimal MSBOS for hospital blood bank inventory management that minimizes the probability that a patient will need a red blood cell transfusion that exceeds the reserved units, subject to the desired overall crossmatch to transfusion ratio.
Study context
- Population
- Adult surgical cases across 2430 procedure codes over 7.8 years at a teaching hospital2,430 procedure codes
- Participants
- 192,822 cases
- Exposure
- Priority-based vs Mean-units heuristic
- Outcome
- Total hospital blood bank RBC units transfused but unreserved, optimal (priority-based) MSBOS with overall CT ratio ≤2.00
Methodological detailssingle-centre, algorithm development
- Single-centre
- Algorithm development
Main finding
As reported in the abstract
Decrease in total hospital blood bank units (surgical and non-surgical) transfused but unreserved, while maintaining the ≤2.00 crossmatch-to-transfusion (CT) ratio
37.9%
CT ratio across the 135 categories with ≥1 crossmatched unit, mean (SD)
1.787
0.977
Observational data: associations, not effects.
Original publication
Development of an optimal maximum surgical blood ordering schedule to achieve a prespecified crossmatch-to-transfusion ratio. J Clin Anesth. Published 19 April 2026. doi:10.
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