Biatrial tachycardia Biatrial tachycardia p
With n=6 Without n=24
Left atrial volume, cm3 90.3 ± 12.7 82.4 ± 35.9 0.72
Left atrial diameter, mm 40.6 ± 5.4 39.7 ± 5.9 0.74
Left atrial low-voltage area
Total, cm2 23.9 ± 18.3 12.1 ± 7.7 0.020
Anterior-septal region, cm2 12.1 ± 6.9 7.4 ± 4.4 0.049
Ablation lesions*
Roof line, n (%) 5 (83) 12 (50) 0.20
Bottom lines, n (%) 2 (33) 9 (38) 1.00
Anterior-septal mitral line, n (%) 5 (83) 6 (25) 0.016
Lateral mitral isthmus line, n(%) 1 (17) 3 (13) 1.00
Cavo-tricuspid isthmus line, n (%) 5 (83) 9 (38) 0.072