Table 2

Index Procedural Characteristics

Procedure CharacteristicsN = 101
Cryoballoon applications (per patient)6.1 ± 2.2
Mean application duration (per vein), s213.9 ± 28.8
Nadir balloon temperature, °C−55.2 ± 6.1
Time to isolation when observed, s
 LSPV54.5
 LIPV44.3
 RSPV38.6
 RIPV48.3
28-mm balloon use101 (100)
Achieve mapping catheter use101 (100)
Conscious sedation57 (56.4)
Phrenic nerve pacing101 (100)
Esophageal monitoring50 (49.5)
3D mapping0 (0)
Right atrial flutter ablation8 (7.9)
Lab occupancy time, min133.1 ± 51.3
Procedure time, min53.2 ± 22.2
Elapsed fluoroscopy, min17.7 ± 11.5

Values are mean ± SD or n (%) unless otherwise indicated.

3D = 3-dimensional; LIPV = left inferior pulmonary vein; LSPV = left superior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein.