Journal
CLINICAL THERAPEUTICS
Volume 36, Issue 9, Pages 1135-1144Publisher
ELSEVIER
DOI: 10.1016/j.clinthera.2014.07.015
Keywords
atrial fibrillation; cardiac failure; thromboembolism; stroke; risk factors
Categories
Funding
- Boehringer-Ingelheim
- Bayer Healthcare
- Bristol-Myers-Squibb/Pfizer
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Purpose: Atrial fibrillation (AF) is commonly associated with structural heart disease. Although heart failure (HF) has been proposed as a risk factor for stroke, the coexistence of the 2 diseases increases disproportionally the risk of thromboembolic events. Our objective was to conduct a systematic review to assess the effect of HF on the end points of stroke, systemic embolism (SE), or mortality in patients with AF. Methods: A literature search was performed to identify studies that examined stroke/ SE in relation to AF and HF. Overall, 405 articles satisfied the preinclusion criteria. Findings: In studies in which HF was based on a clinical diagnosis, HF independently increased stroke/ SE, in 5 of 13 studies, conferring 1.6- to 3.1-fold increase in risk. When HF was defined as impaired left ventricular (LV) function on echocardiography, the additive risk was evident in 4 of 6 studies, with 1.7- to 2.6-fold increase in the risk of stroke/SE. The data about HF with preserved ejection fraction were less robust, although a recent presentation with acute decompensated HF increased the risk of stroke/SE, irrespective of ejection fraction. (C) 2014 Elsevier HS Journals, Inc. All rights reserved.
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