Slit-based Irrigation n = 1,291 Other catheters n = 1,829
p value
Age (years) 56.65 ± 10.62 55.10 ± 11.15 < 0.001
LA diameter (mm) 41.63 ± 6.18 40.89 ± 5.93 0.001
Body mass index (kg/m2) 25.01 ± 3.10 24.96 ± 3.05 0.608
CHA2DS2-VASc 1.25 ± 1.22 1.29 ± 1.29 0.425
LV ejection fraction (%) 54.52 ± 5.93 54.80 ± 6.28 0.213
E/e’ 8.78 ± 3.27 8.79 ± 4.18 0.931
LAA flow velocity (cm/sec) 46.59 ± 21.63 50.08 ± 21.15 < 0.001
SEC 17.0% 21.5% 0.002
Non-paroxysmal AF 45.5% 37.7% < 0.001
Male sex 78.9% 78.9% > 0.999
Heart failure 5.9% 7.0% 0.216
Hypertension 36.9% 38.8% 0.289
Diabetes 9.0% 10.1% 0.316
Stroke or TIA history 8.7% 8.1% 0.599
Vascular disease 5.0% 9.6% < 0.001
Substrate modification 44.9% 46.0% 0.562
Pre-RFCA anticoagulation 67.3% 55.6% < 0.001
Post-RFCA anticoagulation 97.2% 93.5% < 0.001