Risk Stratification in Atrial Fibrillation and Congestive Heart Failure
Atrial fibrillation (AF) and heart failure are two common cardiac diseases, affecting 1%-2% of the population [1,2] with a prevalence that rises steeply with age. AF and heart failure are conditioned by common risk factors and frequently coexist ; indeed, the prevalence of left ventricular dysfunction and/or congestive heart failure among patients with AF may be as high as 40% , and in the Framingham Study the presence of congestive heart failure implied a 6.6-fold increased risk of developing AF in a 2-year period. On the other side, the strong association between AF and congestive heart failure is further attested by the high prevalence of AF found in major heart failure trials dealing with patients in more advanced NYHA functional classes .
KeywordsAtrial Fibrillation Congestive Heart Failure Left Ventricular Dysfunction Diastolic Interval High Ventricular Rate
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