Ablation of Atrial Fibrillation in Chronic Heart Failure Patients: Facts or Fancy?
Heart failure (HF) represents the natural evolution of many cardiovascular diseases. The prevalence of HF varies between 1% and 3% in the general population, being even more frequent in the elderly . Atrial fibrillation (AF) on the other hand, is the most frequent arrhythmia, with a prevalence of 0.5%-1% in the general population and up to 10% in octogenarians . These two diseases often have common causes and they are frequently associated. HF predisposes to AF, which is present in from 10% of patients in NYHA class II and up to 40%-50% of patients in NYHA class IV, with an average of 15%-30% in the whole group of patients with HF [3-6]. AF worsens the outcome of patients with HF. A rapid and irregular ventricular response and the lack of the atrial kick during AF may further reduce cardiac output .
KeywordsAtrial Fibrillation Pulmonary Vein Pulmonary Vein Isolation NYHA Class Chronic Heart Failure Patient
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