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  • Title: Heart failure in patients with atrial fibrillation is associated with a high symptom and hospitalization burden: the RealiseAF survey.
    Author: Silva-Cardoso J, Zharinov OJ, Ponikowski P, Naditch-Brûlé L, Lewalter T, Brette S, Steg PG, RealiseAF Investigators.
    Journal: Clin Cardiol; 2013 Dec; 36(12):766-74. PubMed ID: 24105492.
    Abstract:
    BACKGROUND: Atrial fibrillation (AF) and heart failure (HF) often coexist; the consequences of such coexistence are unclear. HYPOTHESIS: HF in patients with AF is associated with poor outcomes. METHODS: This post hoc analysis of RealiseAF, a survey of AF patients, compared symptoms, hospitalizations, management, and AF control in patients with vs without HF. A total of 10,523 AF patients were analyzed according to presence/absence of HF. RESULTS: History of HF was present in 45.8%, and in more patients with permanent vs persistent, paroxysmal, or first-episode AF (55.6%, 44.3%, 32.9%, and 29.8%, respectively; P < 0.0001). Patients with vs those without history of HF, and patients with HF and reduced ejection fraction (HF-REF) vs those with HF and a preserved ejection fraction (HF-PEF), had more frequent cardiovascular (CV) risk factors and more severe symptoms. Presence vs absence of HF, and HF-REF vs HF-PEF, were associated with lower rates of AF control (54.6% vs 62.8% and 49.3% vs 60.3%, respectively; both P < 0.0001). The rate-control strategy was used more frequently in HF patients, particularly those with HF-REF, than the rhythm-control strategy. CV hospitalizations occurred more frequently in patients with HF than those without (41.8% vs 17.5%; P < 0.001) and more frequently in patients with HF-REF than in those with HF-PEF (51.6% vs 35.6%; P < 0.0001). CONCLUSIONS: AF patients with HF, particularly HF-REF, experience heavy symptom and hospitalization burdens, and have relatively low rates of AF control. Further studies are needed to identify ways to improve the management and treatment outcomes of this very high-risk patient population.
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