RT Journal Article SR Electronic A1 Nichols, Emma Hitt T1 BELIEF Study JF MD Conference Express YR 2015 FD SAGE Publications VO 15 IS 28 suppl 2 SP 9 OP 10 DO 10.1177/1559897715612463 UL http://mdc.sagepub.com/content/15/28_suppl_2/9.2.abstract AB Patients with long-standing persistent atrial fibrillation experienced greater rates of freedom from atrial fibrillation or atrial tachycardia, with similar rates of complications, after empirical electrical isolation of the left atrial appendage plus standard ablation compared with patients who received standard ablation only.