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BACKGROUND: AABB Standards for Blood Banks and Transfusion Services require accredited institutions to have a policy for handling requests for blood components on patients clinically identified as being at high risk for transfusion-associated circulatory overload (TACO; Standard 5.19.7, 31st edition). This survey elucidated how AABB accredited hospital transfusion services/blood banks around the world are complying with this Standard. METHODS: A link to a Web-based survey in English was e-mailed under the auspice of the AABB to each AABB accredited hospital transfusion service/blood bank (n = 851) asking for details on how their institution is complying with this Standard and for general information on any TACO risk mitigation strategies in place. RESULTS: Of the 290 responses received (34% response rate), 282 met the criteria for analysis. There were 174 of 282 (62%) respondents who indicated that their institution has a formal policy for complying with the Standard, and 108 of 282 (38%) who indicated that their institution does not have a formal policy. A diverse range of policies and practices were in place at the institutions with and without a formal policy ranging from writing advice/recommendations in the charts of patients at increased risk of TACO, promulgating policies from the transfusion service/blood bank or institution itself that would reduce the risk, or using decision support tools to provide education about reducing the risk of TACO. CONCLUSIONS: Many but not all AABB accredited institutions have policies to comply with the TACO risk mitigation Standard. However, the vast majority conduct activities that could mitigate risk for TACO.

Original publication




Journal article



Publication Date





2833 - 2839


Blood Banks, Blood Safety, Blood Transfusion, Canada, Colombia, Guideline Adherence, Hospitals, Humans, Italy, Organizational Policy, Pakistan, Risk Management, Saudi Arabia, Singapore, Societies, Medical, Transfusion Reaction, United States