Table 2.

Procedural data

Procedural data	rEF group	nEF group	P‐value
Procedure duration[mean ± SD (median) (min)]	98.3 ± 31.6 (95.0)	103.7 ± 37.0 (100.0)	0.358
LVEF reduction: mild	93.9 ± 30.9 (91.0)		0.155
moderate	102.4 ± 33.5 (102.0)		0.998
severe	99.7 ± 30.8 (98.0)		0.819
Fluoroscopy time [mean ± SD (median) (min)]	20.6 ± 9.7 (19.0)	21.2 ± 10.2 (18.3)	0.883
LVEF reduction: mild	19.6 ± 7.2 (19.1)		0.717
moderate	22.0 ± 10.9 (21.4)		0.526
severe	20.7 ± 11.0 (17.4)		0.622
No. of Ablations per patient [mean ± SD (median)]	7.0 ± 2.3 (7.0)	7.2 ± 2.3(8.0)	0.248
LVEF reduction: mild	7.0 ± 2.1 (7.0)		0.517
moderate	7.3 ± 2.4 (7.0)		0.904
severe	6.7 ± 2.4 (6.0)		0.157
Isolation with 1. Freeze [n/total n (%)]	371/452 (82.1%)	959/1187 (80.8%)	0.551
LVEF reduction: mild	145/173 (83.8%)		0.342
moderate	104/132 (78.8%)		0.581
severe	122/147 (83.0%)		0.521
Mean TTI [mean ± SD (median) (sec.)]:
LSPV	51.0 ± 23.1 (48.0)	49.0 ± 25.3 (42.0)	0.183
LIPV	40.5 ± 21.6 (35.0)	38.3 ± 22.0 (32.0)	0.259
LCPV	none	42.0 ± 20.5 (41.5)
RSPV	42.8 ± 20.6 (36.0)	39.4 ± 22.5 (34.0)	0.103
RIPV	47.6 ± 26.3 (44.0)	46.2 ± 25.7 (39.0)	0.552
RMPV	32.5 ± 12.0 (32.5)	none
Aborted freezes [n/total n (%)]	63/784 (8.0%)	179/2157 (8.3%)	0.819
Complications [n (%)]:	10/113 (9.7%)	24/301 (7.8%)	0.772
Pers. Phrenicus nerve palsy	3 (2.7%)	3 (1.0%)	0.209
Pericardial effusion	0 (0%)	4 (1.3%)	0.578
Vascular access	3 (2.7%)	14 (4.7%)	0.362
Stroke	0 (0%)	1 (0.3%)	1.000
Bleeding	4 (3.5%)	2 (0.7%)	0.050