Skip to main content
Log in

Review of Challenges in Optimizing Oral Anticoagulation Therapy for Stroke Prevention in Atrial Fibrillation

  • Review Article
  • Published:
American Journal of Cardiovascular Drugs Aims and scope Submit manuscript

Abstract

Oral anticoagulant therapy is the mainstay of stroke prevention in patients with atrial fibrillation; it is highly effective at reducing stroke risk, but its use can be limited by increased risk of bleeding. As new oral anticoagulants are available, barriers to optimal use of oral anticoagulation therapy warrant consideration by healthcare professionals and administrators who are seeking to optimize the quality of care for patients with atrial fibrillation. Suboptimal use of oral anticoagulation therapy constitutes an important health problem with significant humanistic and economic consequences. Based on a review of the medical literature published between 2000 and 2011, this article summarizes the literature on the barriers to optimal use of oral anticoagulation therapy, describes the clinical and economic burdens that these barriers add to the burden of atrial fibrillation, and discusses how well the new oral anticoagulants may address some of these issues.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1

Similar content being viewed by others

References

  1. Go AS. The epidemiology of atrial fibrillation in elderly persons: the tip of the iceberg. Am J Geriatr Cardiol. 2005;14:56–61.

    Article  PubMed  Google Scholar 

  2. Sanoski CA. Clinical, economic, and quality of life impact of atrial fibrillation. J Manag Care Pharm. 2009;15(6 Suppl B):S4–9.

    Google Scholar 

  3. Gage BF, Waterman AD, Shannon W, et al. Validation of clinical classification schemes for predicting stroke: results from the national registry of atrial fibrillation. JAMA. 2001;285:2864–70.

    Article  PubMed  CAS  Google Scholar 

  4. Lip GY, Halperin JL. Improving stroke risk stratification in atrial fibrillation. Am J Med. 2010;123(6):484–8.

    Article  PubMed  Google Scholar 

  5. Lin HJ, Wolf PA, Kelly-Hayes M, et al. Stroke severity in atrial fibrillation. The Framingham Study. Stroke. 1996;27(10):1760-4.

    Article  PubMed  CAS  Google Scholar 

  6. Gandolfo C, Balestrino M, Burrone A, et al. Stroke due to atrial fibrillation and the attitude to prescribing anticoagulant prevention in Italy. A prospective study of a consecutive stroke population admitted to a comprehensive stroke unit. J Neurol. 2008;255(6):796–802.

    Article  PubMed  CAS  Google Scholar 

  7. Naccarelli GV, Varker H, Lin J, et al. Increasing prevalence of atrial fibrillation and flutter in the United States. Am J Cardiol. 2009;104(11):1534–9.

    Article  PubMed  Google Scholar 

  8. Lakshminarayan K, Anderson DC, Herzog CA, et al. Clinical epidemiology of atrial fibrillation and related cerebrovascular events in the United States. Neurologist. 2008;14(3):143–50.

    Article  PubMed  Google Scholar 

  9. Miyasaka Y, Barnes ME, Gersh BJ. Secular trends in incidence of atrial fibrillation in Olmsted County, Minnesota, 1980 to 2000, and implications on the projections for future prevalence. Circulation. 2006;114:119–25.

    Article  PubMed  Google Scholar 

  10. Go AS, Hylek EM, Phillips KA. Prevalence of diagnosed atrial fibrillation in adults. National implications for rhythm management and stroke prevention: the Anticoagulation and Risk Factors in Atrial Fibrillation (ATRIA) study. JAMA. 2001;285:2370–5.

    Article  PubMed  CAS  Google Scholar 

  11. Heeringa J, van der Kuip DA, Hofman A, et al. Prevalence, incidence and lifetime risk of atrial fibrillation: the Rotterdam study. Eur Heart J. 2006;27(8):949–53.

    Article  PubMed  Google Scholar 

  12. Khoo CW, Lip GYH. Burden of atrial fibrillation. Curr Med Res Opin. 2009;5:1261–3.

    Article  Google Scholar 

  13. Singer DE, Albers GW, Dalen JE, et al. Antithrombotic therapy in atrial fibrillation. American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2008;133:S546–92.

    Article  Google Scholar 

  14. Marinigh R, Lip GY, Lane DA. Stroke prevention in atrial fibrillation patients. Expert Opin Pharmacother. 2010;11(14):2331–50.

    Article  PubMed  CAS  Google Scholar 

  15. Agarwal S, Hachamovitch R, Menon V. Current trial-associated outcomes with warfarin in prevention of stroke in patients with nonvalvular atrial fibrillation: a meta-analysis. Arch Intern Med. 2012;172(8):623–31.

    Article  PubMed  Google Scholar 

  16. Gallagher AM, Setakis E, Plumb JM, et al. Risks of stroke and mortality associated with suboptimal anticoagulation in atrial fibrillation patients. Thromb Haemost. 2011;106(5):968–77.

    Article  PubMed  CAS  Google Scholar 

  17. Connolly SJ, Ezekowitz MD, Yusuf S, RE-LY Steering Committee and Investigators, et al. Dabigatran versus warfarin in patients with atrial fibrillation. N Engl J Med. 2009;361(12):1139–51.

    Article  PubMed  CAS  Google Scholar 

  18. Patel MR, Mahaffey KW, Garg J, et al. ROCKET AF Investigators. Rivaroxaban versus warfarin in nonvalvular atrial fibrillation. N Engl J Med. 2011;365(10):883–91.

    Article  PubMed  CAS  Google Scholar 

  19. Granger CB, Alexander JH, McMurray JJ, ARISTOTLE Committees and Investigators, et al. Apixaban versus warfarin in patients with atrial fibrillation. N Engl J Med. 2011;365(11):981–92.

    Article  PubMed  CAS  Google Scholar 

  20. You JJ, Singer DE, Howard PA, et al. American College of Chest Physicians. Antithrombotic therapy for atrial fibrillation: antithrombotic therapy and prevention of thrombosis. 9th ed. American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2012;141(2 Suppl):e531S–75S.

  21. Skanes AC, Healey JS, Cairns JA, Canadian Cardiovascular Society Atrial Fibrillation Guidelines Committee, et al. Focused 2012 update of the Canadian cardiovascular society atrial fibrillation guidelines: recommendations for stroke prevention and rate/rhythm control. Can J Cardiol. 2012;28(2):125–36.

    Article  PubMed  Google Scholar 

  22. Camm AJ, Kirchhof P, Lip GYJ, et al. Guidelines for the management of atrial fibrillation. The task force for the management of atrial fibrillation of the European Society of Cardiology (ESC). Eur Heart J. 2010;31:2369–429.

    Article  PubMed  Google Scholar 

  23. Fuster V, Ryden LE, Cannom DS, et al. 2011 ACCF/AHA/HRA Focused updates incorporated into the ACC/AHA/ESC 2006 guidelines for the management of patients with atrial fibrillation. J Am Coll Cardiol. 2011;57:e101–98.

    Google Scholar 

  24. Lopes RD, Piccini JP, Hylek EM, et al. Antithrombotic therapy in atrial fibrillation: guidelines translated for the clinician. J Thromb Thrombolysis. 2008;26(3):167–74.

    Article  PubMed  CAS  Google Scholar 

  25. Goldstein LB, Adams R, Alberts MJ, et al. Primary prevention of ischemic stroke: a guideline from the American Heart Association/American Stroke Association Stroke Council. Stroke. 2006;37:1583–633.

    PubMed  Google Scholar 

  26. Klein-Ritter D. An evidence-based review of the AMA/AHA guideline for the primary prevention of ischemic stroke. Geriatrics. 2009;64(9):16–20.

    PubMed  Google Scholar 

  27. Zimetbaum PJ, Thosani A, Yu HT, et al. Are atrial fibrillation patients receiving warfarin in accordance with stroke risk? Am J Med. 2010;123(5):446–53.

    Article  PubMed  CAS  Google Scholar 

  28. Ogilvie IM, Newton N, Welner SA, et al. Underuse of oral anticoagulants in atrial fibrillation: a systematic review. Am J Med. 2010;123(7):638–45.

    Article  PubMed  CAS  Google Scholar 

  29. Reynolds MR, Shah J, Essebag V, et al. Patterns and predictors of warfarin use in patients with new-onset atrial fibrillation from the FRACTAL Registry. Am J Cardiol. 2006;97(4):538–43.

    Article  PubMed  CAS  Google Scholar 

  30. Lin LJ, Cheng MH, Lee CH, et al. Compliance with antithrombotic prescribing guidelines for patients with atrial fibrillation—a nationwide descriptive study in Taiwan. Clin Ther. 2008;30(9):1726–36.

    Article  PubMed  Google Scholar 

  31. Agarwal S, Bennett D, Smith DJ. Predictors of warfarin use in atrial fibrillation patients in the inpatient setting. Am J Cardiovasc Drugs. 2010;10(1):37–48.

    Article  PubMed  CAS  Google Scholar 

  32. Walker AM, Bennett D. Epidemiology and outcomes in patients with atrial fibrillation in the United States. Heart Rhythm. 2008;5(10):1365–72.

    Article  PubMed  Google Scholar 

  33. Burkiewicz JS. Effect of access to anticoagulation management services on warfarin use in patients with atrial fibrillation. Pharmacotherapy. 2005;25(8):1062–7.

    Article  PubMed  Google Scholar 

  34. Carroll K, Majeed A. Comorbidity associated with atrial fibrillation: a general practice-based study. Br J Gen Pract. 2001;51:884–91.

    PubMed  CAS  Google Scholar 

  35. Bungard TJ, Ghali WA, Teo KK, et al. Why do patients with atrial fibrillation not receive warfarin? Arch Intern Med. 2000;160(1):41–6.

    Article  PubMed  CAS  Google Scholar 

  36. Connolly SJ, Eikelboom J, Joyner C, et al. Apixaban in patients with atrial fibrillation. N Engl J Med. 2011;364(9):806–17.

    Article  PubMed  CAS  Google Scholar 

  37. Friberg L, Rosenqvist M, Lip GY. Evaluation of risk stratification schemes for ischaemic stroke and bleeding in 182 678 patients with atrial fibrillation: the Swedish Atrial Fibrillation cohort study. Eur Heart J. 2012;33(12):1500–10.

    Google Scholar 

  38. Olesen JB, Lip GY, Hansen ML, et al. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011;342:d124.

    Article  PubMed  Google Scholar 

  39. Potpara TS, Polovina MM, Licina MM, et al. Reliable identification of “truly low” thromboembolic risk in patients initially diagnosed with “lone” atrial fibrillation: the Belgrade atrial fibrillation study. Circ Arrhythm Electrophysiol. 2012;5(2):319–26.

    Article  PubMed  Google Scholar 

  40. Olesen JB, Torp-Pedersen C, Hansen ML, et al. The value of the CHA2DS2-VASc score for refining stroke risk stratification in patients with atrial fibrillation with a CHADS2 score 0–1: a nationwide cohort study. Thromb Haemost. 2012;107(6):1172–9.

    Article  PubMed  CAS  Google Scholar 

  41. Karthikeyan G, Eikelboom JW. The CHADS2 score for stroke risk stratification in atrial fibrillation—friend or foe? Thromb Haemost. 2010;104(1):45–8.

    Article  PubMed  CAS  Google Scholar 

  42. Klein D, Levine M. Are family physicians using the CHADS2 score? Is it useful for assessing risk of stroke in patients with atrial fibrillation? Can Fam Phys. 2011;57(8):e305–9.

    Google Scholar 

  43. Keogh C, Wallace E, Dillon C, et al. Validation of the CHADS2 clinical prediction rule to predict ischaemic stroke. A systematic review and meta-analysis. Thromb Haemost. 2011;106(3):528–38.

    Article  PubMed  CAS  Google Scholar 

  44. Choudhry NK, Anderson GM, Laupacis A, et al. Impact of adverse events on prescribing warfarin in patients with atrial fibrillation: matched pair analysis. BMJ. 2006;332(7534):141–5.

    Article  PubMed  Google Scholar 

  45. Devereaux PJ, Anderson DR, Gardner MJ, et al. Differences between perspectives of physicians and patients on anticoagulation in patients with atrial fibrillation: observational study. BMJ. 2001;323(7323):1218–22.

    Article  PubMed  CAS  Google Scholar 

  46. Lip GY, Andreotti F, Fauchier L, European Heart Rhythm Association, et al. Bleeding risk assessment and management in atrial fibrillation patients. Executive Summary of a Position Document from the European Heart Rhythm Association [EHRA], endorsed by the European Society of Cardiology [ESC] Working Group on Thrombosis. Thromb Haemost. 2011;106(6):997–1011.

    Article  PubMed  CAS  Google Scholar 

  47. Roldán V, Marín F, Fernández H, et al. Predictive value of the HAS-BLED and ATRIA bleeding scores for the risk of serious bleeding in a ‘real world’ anticoagulated atrial fibrillation population. Chest. 2013;143(1):179–84.

    Google Scholar 

  48. Sato H, Ishikawa K, Kitabatake A, Japan Atrial Fibrillation Stroke Trial Group, et al. Low-dose aspirin for prevention of stroke in low-risk patients with atrial fibrillation: Japan Atrial Fibrillation Stroke Trial. Stroke. 2006;37(2):447–51.

    Article  PubMed  CAS  Google Scholar 

  49. Ogawa S, Hori M. Urgent statement on antithrombotic therapy of atrial fibrillation. Circ J. 2011;75(12):2719–21.

    Article  PubMed  CAS  Google Scholar 

  50. Gage BF, Yan Y, Milligan PE, et al. Clinical classification schemes for predicting hemorrhage: results from the National Registry of Atrial Fibrillation (NRAF). Am Heart J. 2006;151(3):713–9.

    Article  PubMed  Google Scholar 

  51. Shireman TI, Mahnken JD, Howard PA, et al. Development of a contemporary bleeding risk model for elderly warfarin recipients. Chest. 2006;130(5):1390–6.

    Article  PubMed  Google Scholar 

  52. Pisters R, Lane DA, Nieuwlaat R, et al. A novel user-friendly score (HAS-BLED) to assess 1-year risk of major bleeding in patients with atrial fibrillation: the Euro Heart Survey. Chest. 2010;138(5):1093–100.

    Article  PubMed  Google Scholar 

  53. Fang MC, Go AS, Chang Y, et al. A new risk scheme to predict warfarin-associated hemorrhage: The ATRIA (Anticoagulation and Risk Factors in Atrial Fibrillation) Study. J Am Coll Cardiol. 2011;58(4):395–401.

    Article  PubMed  Google Scholar 

  54. Olesen JB, Lip GY, Lindhardsen J, et al. Risks of thromboembolism and bleeding with thromboprophylaxis in patients with atrial fibrillation: a net clinical benefit analysis using a ‘real world’ nationwide cohort study. Thromb Haemost. 2011;106(4):739–49.

    Article  PubMed  CAS  Google Scholar 

  55. Singer DE, Chang Y, Fang MC, et al. The net clinical benefit of warfarin anticoagulation in atrial fibrillation. Ann Intern Med. 2009;151(5):297–305.

    Article  PubMed  Google Scholar 

  56. Banerjee A, Lane DA, Torp-Pedersen C, et al. Net clinical benefit of new oral anticoagulants (dabigatran, rivaroxaban, apixaban) versus no treatment in a ‘real world’ atrial fibrillation population: a modelling analysis based on a nationwide cohort study. Thromb Haemost. 2012;107(3):584–9.

    Article  PubMed  CAS  Google Scholar 

  57. MacLean S, Mulla S, Akl EA, et al., American College of Chest Physicians. Patient values and preferences in decision making for antithrombotic therapy: a systematic review: antithrombotic therapy and prevention of thrombosis. American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. 9th ed. Chest. 2012;141(2 Suppl):e1S–23S.

  58. Man-Son-Hing M, Gage BF, Montgomery AA, et al. Preference-based antithrombotic therapy in atrial fibrillation: implications for clinical decision making. Med Decis Making. 2005;25(5):548–59.

    Article  PubMed  Google Scholar 

  59. Fuller R, Dudley N, Blacktop J. Avoidance hierarchies and preferences for anticoagulation—semi-qualitative analysis of older patients’ views about stroke prevention and the use of warfarin. Age Ageing. 2004;33(6):608–11.

    Article  PubMed  Google Scholar 

  60. Protheroe J, Fahey T, Montgomery AA, et al. Effects of patients’ preferences on the treatment of atrial fibrillation: observational study of patient-based decision analysis. West J Med. 2001;174(5):311–5.

    Article  PubMed  CAS  Google Scholar 

  61. Lip GY, Kamath S, Jafri M, et al. Ethnic differences in patient perceptions of atrial fibrillation and anticoagulation therapy: the West Birmingham Atrial Fibrillation Project. Stroke. 2002;33(1):238–42.

    Article  PubMed  Google Scholar 

  62. Meschia JF, Merrill P, Soliman EZ, et al. Racial disparities in awareness and treatment of atrial fibrillation: the REasons for Geographic and Racial Differences in Stroke (REGARDS) study. Stroke. 2010;41(4):581–7.

    Article  PubMed  Google Scholar 

  63. Smith MB, Christensen N, Wang S, et al. Warfarin knowledge in patients with atrial fibrillation: implications for safety, efficacy, and education strategies. Cardiology. 2010;116(1):61–9.

    Article  PubMed  Google Scholar 

  64. Caro JJ. An economic model of stroke in atrial fibrillation: the cost of suboptimal oral anticoagulation. Am J Manag Care. 2004;10(14 Suppl):S451–8.

    PubMed  Google Scholar 

  65. Fang MC, Go AS, Chang Y, et al. Warfarin discontinuation after starting warfarin for atrial fibrillation. Circ Cardiovasc Qual Outcomes. 2010;3(6):624–31.

    Article  PubMed  Google Scholar 

  66. Cabral KP, Ansell J, Hylek EM. Future directions of stroke prevention in atrial fibrillation: the potential impact of novel anticoagulants and stroke risk stratification. J Thromb Haemost. 2011;9(3):441–9.

    Article  PubMed  CAS  Google Scholar 

  67. Nutescu EA, Helgason CM. Concomitant drug, dietary, and lifestyle issues in patients with atrial fibrillation receiving anticoagulation therapy for stroke prophylaxis. Curr Treat Options Cardiovasc Med. 2005;7(3):241–50.

    Article  PubMed  Google Scholar 

  68. Garcia DA, Lopes RD, Hylek EM. New-onset atrial fibrillation and warfarin initiation: high risk periods and implications for new antithrombotic drugs. Thromb Haemost. 2010;104(6):1099–105.

    Article  PubMed  CAS  Google Scholar 

  69. Baker WL, Cios DA, Sander SD, et al. Meta-analysis to assess the quality of warfarin control in atrial fibrillation patients in the United States. J Manag Care Pharm. 2009;15(3):244–52.

    PubMed  Google Scholar 

  70. Dolan G, Smith LA, Collins S, et al. Effect of setting, monitoring intensity and patient experience on anticoagulation control: a systematic review and meta-analysis of the literature. Curr Med Res Opin. 2008;24(5):1459–72.

    Article  PubMed  CAS  Google Scholar 

  71. Nichol MB, Knight TK, Dow T, et al. Quality of anticoagulation monitoring in nonvalvular atrial fibrillation patients: comparison of anticoagulation clinic versus usual care. Ann Pharmacother. 2008;42(1):62–70.

    Article  PubMed  Google Scholar 

  72. Ansell J, Hollowell J, Pengo V, et al. Descriptive analysis of the process and quality of oral anticoagulation management in real-life practice in patients with chronic non-valvular atrial fibrillation: the international study of anticoagulation management (ISAM). J Thromb Thrombolysis. 2007;23:83–91.

    Article  PubMed  Google Scholar 

  73. Miller PSJ, Drummond MF, Langkilde LK, et al. Economic factors associated with antithrombotic treatments for stroke prevention in patients with atrial fibrillation. Eur Heart J Suppl. 2005;7(Suppl C):C41–54.

    Google Scholar 

  74. Heneghan C, Alonso-Coello P, Garcia-Alamino JM, et al. Self-monitoring of oral anticoagulation: a systematic review and meta-analysis. Lancet. 2006;367(9508):404–11.

    Article  PubMed  CAS  Google Scholar 

  75. Schauer DP, Moomaw CJ, Wess M, et al. Psychosocial risk factors for adverse outcomes in patients with nonvalvular atrial fibrillation receiving warfarin. J Gen Intern Med. 2005;20(12):1114–9.

    Article  PubMed  Google Scholar 

  76. Menzin J, Boulanger L, Hauch O, et al. Quality of anticoagulation control and costs of monitoring warfarin therapy among patients with atrial fibrillation in clinic settings: a multi-site managed-care study. Ann Pharmacother. 2005;39(3):446–51.

    Article  PubMed  Google Scholar 

  77. Abdelhafiz AH, Wheeldon NM. Use of resources and cost implications of stroke prophylaxis with warfarin for patients with nonvalvular atrial fibrillation. Am J Geriatr Pharmacother. 2003;1(2):53–60.

    Article  PubMed  Google Scholar 

  78. Ruff CT, Giugliano RP, Antman EM, et al. Evaluation of the novel factor Xa inhibitor edoxaban compared with warfarin in patients with atrial fibrillation: design and rationale for the Effective aNticoaGulation with factor xA next GEneration in Atrial Fibrillation-Thrombolysis In Myocardial Infarction study 48 (ENGAGE AF-TIMI 48). Am Heart J. 2010;160(4):635–41.

    Article  PubMed  CAS  Google Scholar 

  79. Ezekowitz MD, Aikens TH, Brown A, et al. The evolving field of stroke prevention in patients with atrial fibrillation. Stroke. 2010;41(10 Suppl):S17–20.

    Article  PubMed  CAS  Google Scholar 

  80. Wells GA, Coyle D, Cameron C, et al. Safety, effectiveness, and cost-effectiveness of new oral anticoagulants compared with warfarin in preventing stroke and other cardiovascular events in patients with atrial fibrillation (online). http://www.cadth.ca/media/pdf/NOAC_Therapeutic_Review_final_report.pdf. Accessed 9 Apr 2012; 17 Aug 2012.

  81. Lip GY, Larsen TB, Skjøth F, et al. Indirect comparisons of new oral anticoagulant drugs for efficacy and safety when used for stroke prevention in atrial fibrillation. J Am Coll Cardiol. 2012;60(8):738–46.

    Article  PubMed  CAS  Google Scholar 

  82. Harenberg J, Marx S, Diener HC, et al. Comparison of efficacy and safety of dabigatran, rivaroxaban and apixaban in patients with atrial fibrillation using network meta-analysis. Int Angiol. 2012;31(4):330–9.

    Google Scholar 

  83. Mantha S, Ansell J. An indirect comparison of dabigatran rivaroxaban and apixaban for atrial fibrillation. Thromb Haemost. 2012;108(3):476–84.

    Google Scholar 

  84. Schneeweiss S, Gagne JJ, Patrick AR, et al. Comparative efficacy and safety of new oral anticoagulants in patients with atrial fibrillation. Circ Cardiovasc Qual Outcomes. 2012;5(4):480–6.

    Article  PubMed  Google Scholar 

  85. Eckman MH, Singer DE, Rosand J, et al. Moving the tipping point: the decision to anticoagulate patients with atrial fibrillation. Circ Cardiovasc Qual Outcomes. 2011;4(1):14–21.

    Article  PubMed  Google Scholar 

  86. Eikelboom JW, Wallentin L, Connolly SJ, et al. Risk of bleeding with 2 doses of dabigatran compared with warfarin in older and younger patients with atrial fibrillation: an analysis of the randomized evaluation of long-term anticoagulant therapy (RE-LY) trial. Circulation. 2011;123(21):2363–72.

    Article  PubMed  CAS  Google Scholar 

  87. Halperin JL, Wojdyla D, Piccini JP, et al. Efficacy and safety of rivaroxaban compared with warfarin among elderly patients with nonvalvular atrial fibrillation in the ROCKET-AF Trial (abstract). Int Stroke Conf. 2012;43:A148.

    Google Scholar 

  88. Hartnell NR, Wilson JP. Replication of the Weber effect using postmarketing adverse event reports voluntarily submitted to the United States Food and Drug Administration. Pharmacotherapy. 2004;24(6):743–9.

    Article  PubMed  Google Scholar 

  89. Harper P, Young L, Merriman E. Bleeding risk with dabigatran in the frail elderly. N Engl J Med. 2012;366(9):864–6.

    Article  PubMed  CAS  Google Scholar 

  90. Legrand M, Mateo J, Aribaud A, et al. The use of dabigatran in elderly patients. Arch Intern Med. 2011;171(14):1285–6.

    Article  PubMed  Google Scholar 

  91. Therapeutic Goods Administration. Dabigatran (Pradaxa): risk of bleeding relating to use (online). http://www.tga.gov.au/safety/alerts-medicine-dabigatran-111005.htm. Accessed 7 Feb 2012.

  92. Food and Drug Administration (FDA). Department of Health and Human Services. NDA 22512/S-009 (online). http://www.accessdata.fda.gov/drugsatfda_docs/appletter/2012/022512s009ltr.pdf. Accessed 10 Feb 2012.

Download references

Acknowledgments

Funding for the literature review and the preparation of this manuscript was provided by Daiichi Sankyo, Inc., Two Hilton Court, Parsippany, NJ, USA. The funding organization was involved in the design of the literature review study and the design and review of the manuscript. We would like to thank Kate Lothman, Medical Editor at RTI Health Solutions, for her contributions of editorial revisions to each manuscript draft, as well as numbering and formatting the references.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Maria M. Fernandez.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Fernandez, M.M., von Schéele, B., Hogue, S. et al. Review of Challenges in Optimizing Oral Anticoagulation Therapy for Stroke Prevention in Atrial Fibrillation. Am J Cardiovasc Drugs 13, 87–102 (2013). https://doi.org/10.1007/s40256-013-0016-5

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40256-013-0016-5

Keywords

Navigation