Anticoagulation Management and Heparin Resistance During Cardiopulmonary Bypass: A Survey of Society of Cardiovascular Anesthesiologists Members

We surveyed Society of Cardiovascular Anesthesiologists members regarding anticoagulation practices for cardiopulmonary bypass and attitudes on heparin resistance. Of 550 respondents (18.5% response rate), 74.9% (95% CI, 71.3%–78.5%) used empiric weight-based dosing of heparin, and 70.7% (95% CI, 66.9%–74.5%) targeted an activated clotting time of either 400 or 480 seconds to initiate cardiopulmonary bypass. Of note, 17.1% (95% CI, 13.9%–20.2%) of respondents reported activated clotting time targets lower than those recommended by recent 2018 Society of Thoracic Surgeons/Society of Cardiovascular Anesthesiologists/American Society of Extracorporeal Technology guidelines or failed to monitor heparin effects at all. When heparin resistance was encountered, 54.2% of respondents (95% CI, 50.0%–58.4%) administered antithrombin concentrates as a first-line therapy. This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. Accepted for publication November 13, 2018. Funding: This work was supported by Grifols, S.A., in the form of a research grant. The sponsor had no involvement in either data analysis or manuscript preparation. Conflicts of Interest: See Disclosures at the end of the article. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (https://ift.tt/KegmMq). Reprints will not be available from the authors. Address correspondence to Roman M. Sniecinski, MD, MSc, Department of Anesthesiology, Emory University Hospital, 1364 Clifton Rd, NE, Atlanta, GA 30322. Address e-mail to rsnieci@emory.edu. © 2018 International Anesthesia Research Society

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