TY - JOUR
T1 - Effect of Atrial Fibrillation on Mortality, Stroke Risk, and Quality-of-Life Scores in Patients With Heart Failure (from the Outcomes Registry for Better Informed Treatment of Atrial Fibrillation [ORBIT-AF])
AU - Cherian, Tharian S.
AU - Shrader, Peter
AU - Fonarow, Gregg C.
AU - Allen, Larry A.
AU - Piccini, Jonathan P.
AU - Peterson, Eric D.
AU - Thomas, Laine
AU - Kowey, Peter R.
AU - Gersh, Bernard J.
AU - Mahaffey, Kenneth W.
N1 - Publisher Copyright:
© 2017 The Author(s)
PY - 2017/6/1
Y1 - 2017/6/1
N2 - The degree to which clinical outcomes are worsened in patients with atrial fibrillation (AF) with heart failure (HF) compared with those without HF is not well described. This study aimed to determine the impact of HF on clinical outcomes in patients with AF. We analyzed data from Outcomes Registry for Better Informed Treatment of Atrial Fibrillation, a national registry of 10,135 patients with AF to determine associations between HF and left ventricular ejection fraction (LVEF) and outcomes, including stroke, mortality, and hospitalization using Cox multivariable modeling. Atrial Fibrillation Effect on Quality-of-Life Questionnaire (AFEQT) scores between groups were also compared. Overall, 33% (n = 3,203) of patients had HF; of these 33% (n = 985) had LVEF ≤40%. Oral anticoagulation was prescribed more commonly in patients with HF (81% vs 74%). Compared with patients without HF, those with HF had similar rate of stroke (1.28 vs 0.88 per 100-patient years, hazard ratio [HR] 1.11, confidence interval [CI] 0.83 to 1.48, p = 0.47) but higher mortality (HR 1.69, CI 1.49 to 1.92, p <0.001) and hospitalization (HR 1.31, CI 1.23 to 1.39, p <0.0001). Patients with LVEF ≤40% had similar stroke risk (HR 1.06, CI 0.67 to 1.67) but higher mortality (HR 2.06, CI 1.74 to 2.44) and hospitalization (HR 1.38, CI 1.25 to 1.51). AFEQT overall score was significantly lower (76.9 vs 83.3, p <0.0001) in patients with HF. In conclusion, HF was associated with increased risk of death and hospitalization and worse quality of life, but similar rates of thromboembolism regardless of LVEF among patients with AF. These findings highlight the need to develop therapeutic strategies targeting functional status and survival for patients with HF and AF.
AB - The degree to which clinical outcomes are worsened in patients with atrial fibrillation (AF) with heart failure (HF) compared with those without HF is not well described. This study aimed to determine the impact of HF on clinical outcomes in patients with AF. We analyzed data from Outcomes Registry for Better Informed Treatment of Atrial Fibrillation, a national registry of 10,135 patients with AF to determine associations between HF and left ventricular ejection fraction (LVEF) and outcomes, including stroke, mortality, and hospitalization using Cox multivariable modeling. Atrial Fibrillation Effect on Quality-of-Life Questionnaire (AFEQT) scores between groups were also compared. Overall, 33% (n = 3,203) of patients had HF; of these 33% (n = 985) had LVEF ≤40%. Oral anticoagulation was prescribed more commonly in patients with HF (81% vs 74%). Compared with patients without HF, those with HF had similar rate of stroke (1.28 vs 0.88 per 100-patient years, hazard ratio [HR] 1.11, confidence interval [CI] 0.83 to 1.48, p = 0.47) but higher mortality (HR 1.69, CI 1.49 to 1.92, p <0.001) and hospitalization (HR 1.31, CI 1.23 to 1.39, p <0.0001). Patients with LVEF ≤40% had similar stroke risk (HR 1.06, CI 0.67 to 1.67) but higher mortality (HR 2.06, CI 1.74 to 2.44) and hospitalization (HR 1.38, CI 1.25 to 1.51). AFEQT overall score was significantly lower (76.9 vs 83.3, p <0.0001) in patients with HF. In conclusion, HF was associated with increased risk of death and hospitalization and worse quality of life, but similar rates of thromboembolism regardless of LVEF among patients with AF. These findings highlight the need to develop therapeutic strategies targeting functional status and survival for patients with HF and AF.
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U2 - 10.1016/j.amjcard.2017.02.050
DO - 10.1016/j.amjcard.2017.02.050
M3 - Article
C2 - 28416199
AN - SCOPUS:85017474054
SN - 0002-9149
VL - 119
SP - 1763
EP - 1769
JO - American Journal of Cardiology
JF - American Journal of Cardiology
IS - 11
ER -