Abstract
Results: Patients in group 1 were younger (57±15 vs. 66±13 years, p=0.009) with a male predominance (80% vs. 57%, p<0.05) as compared to group 2. Post-ablation, group 1 had significant increase in average LA strain (Δ�: 14 % vs. 4%, p<0.05) and strain rate (Δ�: 0.5 vs. 0.1 cm/sec, p<0.05) as compared to group 2 (figure). There was a trend towards more patients with persistent AF in group 2 (68% vs. 55%, p=0.2), but it was not statistically significant. Group 2 had more AF recurrences (38% vs. 13%, p=0.02) at 10.3 ± 3.4 months after ablation.
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