Journal ArticleDOI
Thromboelastography-guided transfusion algorithm reduces transfusions in complex cardiac surgery.
Linda Shore-Lesserson,HE Manspeizer,Marietta DePerio,S Francis,Frances Vela-Cantos,M A Ergin +5 more
TLDR
Point-of-care coagulation monitoring using TEG resulted in fewer transfusions in the postoperative period, and this data support the use of TEG in an algorithm to guide transfusion therapy in complex cardiac surgery.Abstract:
Transfusion therapy after cardiac surgery is empirically guided, partly due to a lack of specific point-of-care hemostasis monitors. In a randomized, blinded, prospective trial, we studied cardiac surgical patients at moderate to high risk of transfusion. Patients were randomly assigned to either a thromboelastography (TEG)-guided transfusion algorithm (n 5 53) or routine transfusion therapy (n 5 52) for intervention after cardiopulmonary bypass. Coagulation tests, TEG variables, mediastinal tube drainage, and transfusions were compared at multiple time points. There were no demographic or hemostatic test result differences between groups, and all patients were given prophylactic antifibrinolytic therapy. Intraoperative transfusion rates did not differ, but there were significantly fewer postoperative and total transfusions in the TEG group. The proportion of patients receiving freshfrozen plasma (FFP) was 4 of 53 in the TEG group compared with 16 of 52 in the control group (P , 0.002). Patients receiving platelets were 7 of 53 in the TEG group compared with 15 of 52 in the control group (P , 0.05). Patients in the TEG group also received less volume of FFP (36 6 142 vs 217 6 463 mL; P , 0.04). Mediastinal tube drainage was not statistically different 6, 12, or 24 h postoperatively. Point-of-care coagulation monitoring using TEG resulted in fewer transfusions in the postoperative period. We conclude that the reduction in transfusions may have been due to improved hemostasis in these patients who had earlier and specific identification of the hemostasis abnormality and thus received more appropriate intraoperative transfusion therapy. These data support the use of TEG in an algorithm to guide transfusion therapy in complex cardiac surgery. Implications: Transfusion of allogeneic blood products is common during complex cardiac surgical procedures. In a prospective, randomized trial, we compared a transfusion algorithm using point-of-care coagulation testing with routine laboratory testing, and found the algorithm to be effective in reducing transfusion requirements. (Anesth Analg 1999;88:312‐9)read more
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Book ChapterDOI
CHAPTER 23 – Clinical Tests of Platelet Function
Paul Harrison,David Keeling +1 more
TL;DR: The development of new, simpler tests and point-of-care (POC) instruments has resulted in the increasing tendency of platelet function testing to be performed away from specialized hemostasis clinical or research laboratories, where the more traditional and complex tests are still performed.
Journal ArticleDOI
A hundred years of cascading - started by Paul Morawitz (1879-1936), a pioneer of haemostasis and of transfusion.
TL;DR: Peter Morawitz is mainly remembered for clarifying the role of prothrombin in clotting, but his mature years saw him guide advances in transfusion therapy.
Journal ArticleDOI
Con: Antifibrinolytics are not safe and effective in patients undergoing liver transplantation.
TL;DR: The use of antifibrinolytic medications during liver translantation was popularized by Kang et al in the midto late 980s and has been used outinely by numerous centers throughout the world in the care of liver transplant patients.
Journal ArticleDOI
Kaolin-activated thromboelastography in echocardiographically normal cats
TL;DR: Kaolin-activated thromboelastography was a reliable test with unremarkable intra-assay variability in echocardiographically normal cats, and cats that required sedation had a significantly shorter clotting time and greater α angle, whereas reaction time and maximum amplitude were not significantly different.
Journal ArticleDOI
Monitoring of hirudin therapy with the thrombelastograph
TL;DR: A patient is described with heparin-induced thrombocytopenia who underwent CPB, where coagulation monitoring was accomplished with the Thrombelastograph, and this more widely available method may be useful in such patients.
References
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Variability in Transfusion Practice for Coronary Artery Bypass Surgery Persists Despite National Consensus Guidelines A 24-Institution Study
E. P. Stover,Lawrence C. Siegel,R. Parks,Jack Levin,Simon C. Body,Rosemarie Maddi,Michael N. D'Ambra,Dennis T. Mangano,Bruce D. Spiess +8 more
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A Multicenter, Double-Blind, Placebo-Controlled Trial of Aprotinin for Reducing Blood Loss and the Requirement for Donor-Blood Transfusion in Patients Undergoing Repeat Coronary Artery Bypass Grafting
Jerrold H. Levy,Roque Pifarre,Hartzell V. Schaff,Jan C. Horrow,Robert Albus,Bruce D. Spiess,Todd K. Rosengart,Jeffrey C. Murray,Richard E. Clark,Peter K. Smith,Andrea Nadel,Sharon L. Bonney,Robert Kleinfield +12 more
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Journal ArticleDOI
Changes in transfusion therapy and reexploration rate after institution of a blood management program in cardiac surgical patients
TL;DR: Use of TEG monitoring before reexploration has decreased the cost and potential risk for patients undergoing CABG surgery and the incidence of reoperation for hemorrhage.
Journal ArticleDOI
Prophylactic tranexamic acid decreases bleeding after cardiac operations.
Jan C. Horrow,J. Hlavacek,Michael D. Strong,W. Collier,Isadore Brodsky,S.M. Goldman,I.P. Goel +6 more
TL;DR: It is concluded that prophylactic tranexamic acid can be administered safely to inhibit fibrinolysis during cardiac operations, decrease postoperative bleeding, and possibly decrease the frequency of blood product transfusion.