Blood utilisation in a developing society: what is the best index of efficiency?

Abstract

OBJECTIVES: To assess blood usage for elective surgery in a developing country as a first step towards developing a maximum surgical blood-ordering schedule (MSBOS). BACKGROUND: ) and transfusion ratio (T%) are standard indices of efficient blood usage for elective surgical procedures. The MSBOS assigns surgical procedures to Group and Cross Match (GXM) and Group and Save (G&S) categories. Non-use probability (NUP) is the percentage of blood that is requested but not used. Trinidad and Tobago (TTO) has a transfusion service that predominantly uses family replacement (F/R) donors. MATERIALS/METHODS: , T% and NUP were retrospectively calculated for 304 elective surgical procedures performed at a tertiary medical institution in TTO between 1st January and 15th May 2013. RESULTS: ≥ 0·5 for 12, suggesting efficiency, significant blood use and a requirement for GXM for most operations. However, the majority of these procedures qualify for G&S when performed under conditions that guarantee ready access to blood in an emergency. A substantial proportion of issued blood was returned unused to the blood bank, giving an NUP of 39·7%. CONCLUSION: must be interpreted in the context of the blood donation system. An internationally accepted value of NUP that equates to efficient blood use should be adopted.

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