CBS 2019
CBSMD教育中心
English

急性冠脉综合征

科研文章

荐读文献

Mild Hypothermia in Cardiogenic Shock Complicating Myocardial Infarction - The Randomized SHOCK-COOL Trial Risk Stratification Guided by the Index of Microcirculatory Resistance and Left Ventricular End-Diastolic Pressure in Acute Myocardial Infarction Optimum Blood Pressure in Patients With Shock After Acute Myocardial Infarction and Cardiac Arrest Improved Outcomes Associated with the use of Shock Protocols: Updates from the National Cardiogenic Shock Initiative Chronic total occlusion intervention of the non-infarct-related artery in acute myocardial infarction patients: the Korean multicenter chronic total occlusion registry Comparison in prevalence, predictors, and clinical outcome of VSR versus FWR after acute myocardial infarction: The prospective, multicenter registry MOODY trial-heart rupture analysis Recommendations for Institutions Transitioning to High-Sensitivity Troponin Testing JACC Scientific Expert Panel Early Natural History of Spontaneous Coronary Artery Dissection Implications of Alternative Definitions of Peri-Procedural Myocardial Infarction After Coronary Revascularization An EAPCI Expert Consensus Document on Ischaemia with Non-Obstructive Coronary Arteries in Collaboration with European Society of Cardiology Working Group on Coronary Pathophysiology & Microcirculation Endorsed by Coronary Vasomotor Disorders International Study Group

Clinical TrialVolume 72, Issue 1, July 2018

JOURNAL:J Am Coll Cardiol. Article Link

Risk of Myocardial Infarction in Anticoagulated Patients With Atrial Fibrillation

C J-Y Lee, TA Gerds, N Carlson et al. Keywords: apixaban; dabigatran; direct oral anticoagulant; rivaroxaban; vitamin K antagonist

Abstract


BACKGROUND - Evidence is conflicting as to the efficacy of direct oral anticoagulation (DOAC) and vitamin K antagonist (VKA) for prevention of myocardial infarction (MI).

OBJECTIVES - This study aimed to investigate the risk of MI associated with the use of apixaban, dabigatran, rivaroxaban, and VKA in patients with atrial fibrillation.

METHODS - Patients with atrial fibrillation were identified using Danish health care registers and stratified by initial oral anticoagulant treatment. Standardized absolute 1-year risks were estimated based on Cox regression for hazard rates of MI hospitalizations and mortality. Reported were absolute risks separately for the oral anticoagulation treatments and standardized to the characteristics of the study population.

RESULTS - Of the 31,739 patients included (median age, 74 years; 47% females), the standardized 1-year risk of MI for VKA was 1.6% (95% confidence interval [CI]: 1.3 to 1.8), apixaban was 1.2% (95% CI: 0.9 to 1.4), dabigatran was 1.2% (95% CI: 1.0 to 1.5), and rivaroxaban was 1.1% (95% CI: 0.8 to 1.3). No significant risk differences were observed in the standardized 1-year risks of MI among the DOACs: dabigatran versus apixaban (0.04%; 95% CI: −0.3 to 0.4), rivaroxaban versus apixaban (0.1%; 95% CI: −0.4 to 0.3), and rivaroxaban versus dabigatran (−0.1%; 95% CI: −0.5 to 0.2). The risk differences for DOACs versus VKA were all significant: −0.4% (95% CI: −0.7 to −0.1) for apixaban, −0.4% (95% CI: −0.7 to −0.03) for dabigatran, and −0.5% (95% CI: −0.8 to −0.2) for rivaroxaban.

CONCLUSIONS - No significant risk differences of MI were found in the direct comparisons of DOACs, and DOACs were all associated with a significant risk reduction of MI compared with VKA.