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Thromb Haemost 2013; 110(03): 560-568
DOI: 10.1160/TH13-04-0351
Blood Coagulation, Fibrinolysis and Cellular Haemostasis
Schattauer GmbH

Anticoagulation in patients with atrial fibrillation undergoing coronary stent implantation

Anne Bernard
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
,
Laurent Fauchier
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
,
Céline Pellegrin
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
,
Nicolas Clementy
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
,
Christophe Saint Etienne
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
,
Amitava Banerjee
2   University of Birmingham Centre for Cardiovascular Sciences, City Hospital, Birmingham, UK
,
Djedjiga Naudin
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
,
Denis Angoulvant
1   Service de Cardiologie, Pôle Coeur Thorax Vasculaire, Centre Hospitalier Universitaire Trousseau et Faculté de Médecine, Université François Rabelais, Tours, France
› Author Affiliations
Further Information

Publication History

Received: 29 April 2013

Accepted after major revision: 26 June 2013

Publication Date:
22 November 2017 (online)

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Summary

In patients with atrial fibrillation (AF) undergoing coronary stent implantation, the optimal antithrombotic strategy is unclear. We evaluated whether use of oral anticoagulation (OAC) was associated with any benefit in morbidity or mortality in patients with AF, high risk of thromboembolism (TE) (CHA2DS2-VASC score ≥2) and coronary stent implantation. Among 8,962 unselected patients with AF seen between 2000 and 2010, a total of 2,709 (30%) had coronary artery disease and 417/2,709 (15%) underwent stent implantation while having CHA2DS2-VASC score ≥2. During follow-up (median=650 days), all TE, bleeding episodes, and major adverse cardiac events (i.e. death, acute myocardial infarction, target lesion revascularisation) were recorded. At discharge, 97/417 patients (23%) received OAC, which was more likely to be prescribed in patients with permanent AF and in those treated for elective stent implantation. The incidence of outcome event rates was not significantly different in patients treated and those not treated with OAC. However, in multivariate analysis, the lack of OAC at discharge was independently associated with increased risk of death/stroke/systemic TE (relative risk [RR] =2.18, 95% confidence interval [CI] 1.02-4.67, p=0.04), with older age (RR =1.12, 1.04-1.20, p=0.003), heart failure (RR =3.26, 1.18-9.01, p=0.02), and history of stroke (RR =18.87, 3.11-111.11, p=0.001). In conclusion, in patients with AF and high thromboembolic risk after stent implantation, use of OAC was independently associated with decreased risk of subsequent death/stroke/systemic TE, suggesting that OAC should be systematically used in this patient population.

Keywords

Atrial fibrillation - oral anticoagulant - antiplatelet agent - coronary stent implantation
 

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