• BMJ · Jan 2014

    Tranexamic acid use and postoperative outcomes in patients undergoing total hip or knee arthroplasty in the United States: retrospective analysis of effectiveness and safety.

    • Jashvant Poeran, Rehana Rasul, Suzuko Suzuki, Thomas Danninger, Madhu Mazumdar, Mathias Opperer, Friedrich Boettner, and Stavros G Memtsoudis.
    • Institute of Healthcare Delivery Science, Mount Sinai Hospital System / Department of Health Evidence and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
    • BMJ. 2014 Jan 1;349:g4829.

    ObjectiveTo determine the effectiveness and safety of perioperative tranexamic acid use in patients undergoing total hip or knee arthroplasty in the United States.DesignRetrospective cohort study; multilevel multivariable logistic regression models measured the association between tranexamic acid use in the perioperative period and outcomes.Setting510 US hospitals from the claims based Premier Perspective database for 2006-12.Participants872,416 patients who had total hip or knee arthroplasty.InterventionPerioperative intravenous tranexamic acid use by dose categories (none, ≤ 1000 mg, 2000 mg, and ≥ 3000 mg).Main Outcome MeasuresAllogeneic or autologous transfusion, thromboembolic complications (pulmonary embolism, deep venous thrombosis), acute renal failure, and combined complications (thromboembolic complications, acute renal failure, cerebrovascular events, myocardial infarction, in-hospital mortality).ResultsWhile comparable regarding average age and comorbidity index, patients receiving tranexamic acid (versus those who did not) showed lower rates of allogeneic or autologous transfusion (7.7% v 20.1%), thromboembolic complications (0.6% v 0.8%), acute renal failure (1.2% v 1.6%), and combined complications (1.9% v 2.6%); all P<0.01. In the multilevel models, tranexamic acid dose categories (versus no tranexamic acid use) were associated with significantly (P<0.001) decreased odds for allogeneic or autologous blood transfusions (odds ratio 0.31 to 0.38 by dose category) and no significantly increased risk for complications: thromboembolic complications (odds ratio 0.85 to 1.02), acute renal failure (0.70 to 1.11), and combined complications (0.75 to 0.98).ConclusionsTranexamic acid was effective in reducing the need for blood transfusions while not increasing the risk of complications, including thromboembolic events and renal failure. Thus our data provide incremental evidence of the potential effectiveness and safety of tranexamic acid in patients requiring orthopedic surgery.© Poeran et al 2014.

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