• 1
    Jaffer AK, Brotman DJ, Bash LD, Mahmood SK, Lott B, White RH. Variations in perioperative warfarin management: outcomes and practice patterns at nine hospitals. Am J Med 2010; 123: 14150.
  • 2
    Douketis JD, Spyropoulos AC, Spencer FA, Mayr M, Jaffer AK, Eckman MH, Dunn AS, Kunz R. Perioperative Management of Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest 2012; 141: e326S50S.
  • 3
    Dunn AS, Spyropoulos AC, Turpie AGG. Bridging therapy in patients on long-term oral anticoagulants who require surgery: the Prospective Peri-operative Enoxaparin Cohort Trial (PROSPECT). J Thromb Haemost 2007; 5: 22118.
  • 4
    Spyropoulos AC, Turpie AG, Dunn AS, Spandorfer J, Douketis J, Jacobson A, Frost FJ. Clinical outcomes with unfractionated heparin or low-molecular-weight heparin as bridging therapy in patients on long-term oral anticoagulants: the regimen registry. J Thromb Haemost 2006; 4: 124652.
  • 5
    Jaffer AK, Ahmed M, Brotman DJ, Bragg L, Seshadri N, Qadeer MA, Klein A. Low-molecular-weight-heparins as periprocedural anticoagulation for patients on long-term warfarin therapy: a standardized bridging therapy protocol. J Thromb Thrombolysis 2005; 20: 116.
  • 6
    Garcia DA, Regan S, Henault LE, Upadhyay A, Baker J, Othman M, Hylek EM. Risk of thromboembolism with short-term interruption of warfarin therapy. Arch Intern Med 2007; 168: 639.
  • 7
    Pengo V, Cucchini U, Denas G, Erba N, Guazzaloca G, La Rosa L, De Micheli V, Testa S, Frontoni R, Prisco D, Nante G, Iliceto S. Standardized low molecular-weight heparin bridging regimen in outpatients on oral anticoagulants undergoing invasive procedure or surgery: an inception cohort management study. Circulation 2009; 119: 29207.
  • 8
    Tafur AJ, McBane R, Wysokinski WE, Litin S, Daniels P, Slusser J, Hodge D, Beckman MG, Heit JA. Predictors of major bleeding in peri-procedural anticoagulation management. J Thromb Haemost 2012; 10: 2617.
  • 9
    Diamantis T, Tsiminikakis N, Skordylaki A, Samiotaki F, Vernadakis S, Bongiorni C, Tsagarakis N, Marikakis F, Bramis I, Bastounis E. Alterations of hemostasis after laparoscopic and open surgery. Hematology 2007; 12: 56170.
  • 10
    Clark NP, Witt DM, Delate T, Trapp M, Garcia D, Ageno W, Hylek EM, Crowther MA. Thromboembolic consequences of subtherapeutic anticoagulation in patients stabilized on warfarin therapy: the low INR study. Pharmacotherapy 2008; 28: 9607.
  • 11
    Spyropoulos AC, Douketis JD, Gerotziafas G, Kaatz S, Ortel TL, Schulman S, on behalf of the Subcommittee on Control of Anticoagulation of the SSC of the ISTH. Periprocedural antithrombotic and bridging therapy: recommendations for standardized reporting in patients with arterial indications for chronic oral anticoagulant therapy. J Thromb Haemost 2012; 10: 6924.
  • 12
    Kearon C, Ginsberg JS, Hirsh J. The role of venous ultrasonography in the diagnosis of suspected deep vein thrombosis and pulmonary embolism. Ann Intern Med 1998; 129: 10449.
  • 13
    Hamadah A, Alwasaidi T, Le Gal G, Carrier M, Wells PS, Scarvelis D, Gonsalves C, Forgie M, Kovacs MJ, Rodger MA. Baseline imaging after therapy for unprovoked venous thromboembolism: a randomised controlled comparison of baseline imaging for diagnosis of suspected recurrence. J Thromb Haemost 2011; 9: 240610.
  • 14
    Lee AYY, Levine MN, Baker RI, Bowden C, Kakkar AK, Prins M, Rickles FR, Julian JA, Haley S, Kovacs MJ, Gent M. Low-molecular-weight heparin versus a coumarin for the prevention of recurrent venous thromboembolism in patients with cancer. N Engl J Med 2003; 349: 14653.
  • 15
    OpenEpi: Open Source Epidemiologic Statistics for Public Health [Computer Program], Version 2.3. Atlanta, GA: Rollins School of Public Health, Emory University, 2009.
  • 16
    McBane RD, Wysokinski WE, Daniels PR, Litin SC, Slusser J, Hodge DO, Dowling NF, Heit JA. Periprocedural anticoagulation management of patients with venous thromboembolism. Arterioscler Thromb Vasc Biol 2010; 30: 4428.
  • 17
    Kovacs MJ, Kearon C, Rodger M, Anderson DR, Turpie AG, Bates SM, Desjardins L, Douketis J, Kahn SR, Solymoss S, Wells PS. Single-arm study of bridging therapy with low-molecular-weight heparin for patients at risk of arterial embolism who require temporary interruption of warfarin. Circulation 2004; 110: 165863.
  • 18
    Gould MK, Garcia DA, Wren SM, Karanicolas PJ, Arcelus JI, Heit JA, Samama CM. Prevention of VTE in Nonorthopedic Surgical Patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest 2012; 141: e227S77S.
  • 19
    Bahl V, Mei Hu H, Henke PK, Wakefield TW, Campbell DA, Caprini JA. A validation study of a retrospective venous thromboembolism risk scoring method. Ann Surg 2010; 252: 34450.