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Girdauskas, E; Kempfert, J; Kuntze, T; Borger, M A; Enders, J; Fassl, J; Falk, V; Mohr, F W (2010). Thromboelastometrically guided transfusion protocol during aortic surgery with circulatory arrest: a prospective, randomized trial. Journal of Thoracic and Cardiovascular Surgery, 140(5):1117-1124.e2.

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Abstract

OBJECTIVE: Aortic surgical procedures requiring hypothermic circulatory arrest are associated with altered hemostasis and increased bleeding. In a randomized clinical trial, we evaluated effects of thromboelastometrically guided algorithm on transfusion requirements.

METHODS: Fifty-six consecutive patients (25 with acute type A dissection) undergoing aortic surgery with hypothermic circulatory arrest were enrolled in a randomized trial during a 6-month period. Patients were randomly allocated to treatment group (n = 27) with thromboelastometrically guided transfusion algorithm or control group (n = 29) with routine transfusion practices (clinical judgment-guided transfusion followed by transfusion according to coagulation test results). Primary end point was cumulative allogeneic blood units (red blood cells, fresh-frozen plasma, and platelets) transfused.

RESULTS: Transfusion of allogeneic blood was significantly reduced in the thromboelastometry group: median 9.0 units (interquartile range, 2.0-30.0 units) versus. 16.0 units (9.0-23.0 units, P = .02). Most significant decrease was in the use of fresh-frozen plasma (3.0 units, 0-12.0 units, vs 8.0 units, 4.0-18.0 units, P = .005). Postoperative blood loss (890 mL/d, 600-1250 mL/d vs 950 mL/d, 650-1400 mL/d, p = 0.5) and rate of surgical re-exploration (19% vs 24%, P = .7) were similar between groups. Thromboelastometrically guided algorithm significantly decreased need for massive perioperative transfusion (odds ratio, 0.45; 95% confidence interval, 0.2-0.9; P = .03) in multivariable logistic regression analysis.

CONCLUSIONS: Thromboelastometrically guided transfusion is associated with a decreased use of allogeneic blood units and reduced incidence of massive transfusion in patients undergoing aortic surgery with circulatory arrest.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Cardiovascular Surgery
DDC:610 Medicine & health
Language:English
Date:2010
Deposited On:07 Jan 2011 11:12
Last Modified:27 Nov 2013 23:47
Publisher:Elsevier
ISSN:0022-5223
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:10.1016/j.jtcvs.2010.04.043
PubMed ID:20951260
Citations:Web of Science®. Times Cited: 36
Google Scholar™
Scopus®. Citation Count: 43

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