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Abstract

Background:

Coagulation abnormalities in end-stage liver disease may preclude patients from receiving venous thromboembolism (VTE) prophylaxis immediately following orthotopic liver transplantation.

Methods:

To identify risk factors for VTE and death following liver transplantation, a retrospective chart review was conducted in adult liver transplant recipients from January 1, 2001, to October 1, 2011.

Results:

In 716 transplantations in 701 patients, the overall incidence of VTE was 2.1%. The incidence was 3.6% in patients who received chemoprophylaxis compared to 1.4% in those without chemoprophylaxis (P = .06). Most patients (69.5%) did not receive chemoprophylaxis postsurgery during their hospitalization. Multivariate logistic regression modeling revealed no association between the use of chemoprophylaxis (adjusted odds ratio [OR] 1.5 [0.45-4.7], P = .53) and VTE. A significant positive association was observed between the use of chemoprophylaxis (adjusted OR 3.2 [1.3-8.0], P = .01) and death.

Conclusion:

Use of chemoprophylaxis and increasing amounts of blood products following orthotopic liver transplant was associated with increased mortality. A significant positive association was observed between blood product administration and VTE, while chemoprophylaxis use was not significantly associated with VTE. Larger prospective studies are necessary to further examine the significance of this finding.

Keywords

anticoagulation enoxaparin unfractionated heparin liver transplantation venous thromboembolism

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Chemoprophylaxis Use and Risk of Venous Thromboembolism and Death in Adult Patients following Orthotopic Liver Transplantation