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. Author manuscript; available in PMC: 2021 Sep 1.
Published in final edited form as: Circ Arrhythm Electrophysiol. 2020 Jul 23;13(9):e007944. doi: 10.1161/CIRCEP.119.007944

Table 2: Procedural Characteristics:

Use of peri-procedural anticoagulation (AC), imaging, catheter types and provocation testing as well as procedural times for overall population and by AF subtype. Data presented as N (%) or median (IQR) as appropriate.

Overall Paroxysmal AF Persistent AF p-value
N 3139 1778 (56.6%) 1361 (43.4%)
Peri-procedure AC strategy 0.0134
Uninterrupted 2280 (73.6%) 1299 (74.4%) 981 (72.4%)
Interrupted 688 (22.2%) 389 (22.3%) 299 (22.1%)
Bridging 132 (4.3%) 58 (3.3%) 74 (5.5%)
Pre-procedure Imaging
Preoperative TEE 1535 (49.0%) 762 (43.0%) 773 (56.9%) <0.0001
CT 1889 (60.3%) 1106 (62.3%) 783 (57.7%) 0.0079
MRI 91 (2.9%) 66 (3.7%) 25 (1.8%) 0.0019
Intra-procedure Imaging
Intra-cardiac echocardiography 2867 (91.5%) 1628 (91.8%) 1239 (91.2%) 0.5954
3D electroanatomic mapping 2843 (90.8%) 1602 (90.3%) 1241 (91.4%) 0.3008
Intra-operative TEE 436 (13.9%) 248 (14.0%) 188 (13.8%) 0.9134
Rotational angiography 176 (5.6%) 103 (5.8%) 73 (5.4%) 0.6042
Energy and catheter type
Irrigated RF with contact force 2206 (70.5%) 1222 (69.0%) 984 (72.5%) 0.0335
Irrigated RF without contact force 271 (8.7%) 135 (7.6%) 136 (10.0%) 0.0182
Cryoballoon 743 (23.7%) 468 (26.4%) 275 (20.2%) <0.0001
Other 53 (1.7%) 29 (1.6%) 24 (1.8%) 0.7788
Provocation testing*
Burst pacing 1652 (68.5%) 942 (67.9%) 710 (69.4%) 0.4222
Isoproternol 1148 (47.6%) 626 (45.1%) 552 (51.0%) 0.0040
Adenosine 602 (25.0%) 394 (28.4%) 208 (20.3%) <0.0001
Other 224 (9.3%) 149 (10.7%) 75 (7.3%) 0.0044
Procedure time (minutes)
Ablation time 37 (17-59) 35 (17.5-53) 41 (17-67) <0.0001
Fluoroscopy time 16 (8-28) 15 (7-26) 18 (10-30) <0.0001
Total procedure time 180 (140-230) 174 (137-218) 190 (146-240) <0.0001

Abbreviations: AF= atrial fibrillation; AC = anticoagulation; CT = computed tomography; MRI = magnetic resonance imaging; TEE = transesophageal echocardiography; RF = radiofrequency.

*

All patients in this cohort received provocation testing of some type.