Primary follow-up of catheter ablation for atrial fibrillation in patients with left ventricular dysfunction / 中国介入心脏病学杂志

ABSTRACT

Objective To evaluate the effect of catheter ablation for atrial fibrillation on left ventricular function in patients with heart failure.Methods We retrospectedly studied 10 consecutive patients with congestive heart failure and a left ventricular ejection fraction of less than 45 percent who underwent catheter ablation for atrial fibrillation.The change in left ventricular function before and after catheter ablation was monitored during a short-term follow-up period.Results Nine patients underwent catheter ablation successfully.After a mean(SD) of 2.78?1.78 months,the patients showed improvement in left ventricular function through improvement in the left ventricular ejection fraction from 0.41?0.01 to 0.46?0.06,the left ventricular diastolic diameter decreased from 56.00?7.21 mm to 53.33?6.42 mm and the left atrial diameter decreased from 44.22?5.91mm to 42.11?4.65 mm,P