|Cavotricuspid isthmus line|
|Successful linear lesion||48/48 (100)|
|Success using lattice catheter only||48/48 (100)|
|Number of RF applications||5.9 ± 3.1|
|Total RF time, min||0.5 ± 0.24|
|Transpired ablation time, min∗||2.3 ± 1.6|
|Fluoroscopy time, min†||4.8 ± 2.2|
|Pulmonary vein isolation|
|Successful lesion set||130/130 (100)|
|Success using lattice catheter only||129/130 (99.2)|
|Number of RF applications||39.5 ± 8.9|
|Total RF time, min||2.7 ± 0.70|
|Transpired ablation time, min∗||21.8 ± 12.1|
|Total left atrial dwell time, min‡||43.0 ± 18.4|
|Fluoroscopy time, min§||7.0 ± 6.7|
|Mitral isthmus line|
|Successful linear lesion||22/22 (100)|
|Success using lattice catheter only||21/22 (95.5)|
|Number of RF applications||11.5 ± 10.7|
|Total RF time, min||1.0 ± 0.92|
|Transpired ablation time, min||5.8 ± 6.4|
|Successful linear lesion||23/24 (95.8)|
|Success using lattice catheter only||23/24 (95.8)|
|Number of RF applications||4.9 ± 1.9|
|Total RF time, min||0.4 ± 0.16|
|Transpired ablation time, min||3.0 ± 4.4|
Values are n/N (%) or mean ± SD.
CTI = cavotricuspid isthmus; ICE = intracardiac echocardiography catheter; PVI = pulmonary vein isolation; RF = radiofrequency.
↵∗ Defined as the time transpiring from the start of the first application to the end of the last application in the lesion set.
↵† In most cases, ablation was performed with ICE guidance alone, so data shown here includes only the 6 cases in whom fluoroscopy was used to guide CTI ablation.
↵‡ Defined as the time transpiring from catheter entry to exit from the body.
↵§ Includes the fluoroscopy time for mapping and ablation, including linear lesions beyond PVI.