| . | Pt–Ir tip (n = 219) . | Gold-tip (n = 229) . | P . |
|---|---|---|---|
| Ablation success with the first catheter, n (%) | |||
| Total | 195 (89.0%) | 216 (94.3%) | 0.042 |
| Block within 25 mina | 192 (87.7%) | 210 (91.7%) | 0.16 |
| Block within 20 mina | 176 (80.4%) | 201 (87.8%) | 0.03 |
| Block within 15 mina | 156 (71.2%) | 180 (78.6%) | 0.07 |
| Block within 10 mina | 118 (53.9%) | 134 (58.5%) | 0.32 |
| Block within 5 mina | 35 (16.0%) | 57 (24.9%) | 0.02 |
| Reasons for ablation failure, n (%) | |||
| No effect on rhythm | 11 (5.0%) | 9 (3.9%) | 0.58 |
| Unusable catheter due to excessive char, coagulum or thrombus formation | 10 (4.6%) | 1 (0.4%) | 0.005 |
| PQ prolongation, risk of AV block | 0 | 1 (0.4%) | 1.00 |
| Bad curve steering | 2 (0.9%) | 1 (0.4%) | 0.62 |
| Repeated catheter dislocation | 1 (0.5%) | 1 (0.4%) | 1.00 |
| Mean RF duration until failure ± SD, minb | 19.3 ± 9.5 | 21.6 ± 10.2 | 0.50 |
| Median (IQR) | 21.3 (11.8, 27.7) | 26.1 (12.0, 29.3) | |
| Outcome after ablation failure, n (%) | |||
| Success with another catheter | 7 | 6 | – |
| No success with another catheter | 4 | 0 | – |
| Further procedure not documented | 13 | 7 | – |
| . | Pt–Ir tip (n = 219) . | Gold-tip (n = 229) . | P . |
|---|---|---|---|
| Ablation success with the first catheter, n (%) | |||
| Total | 195 (89.0%) | 216 (94.3%) | 0.042 |
| Block within 25 mina | 192 (87.7%) | 210 (91.7%) | 0.16 |
| Block within 20 mina | 176 (80.4%) | 201 (87.8%) | 0.03 |
| Block within 15 mina | 156 (71.2%) | 180 (78.6%) | 0.07 |
| Block within 10 mina | 118 (53.9%) | 134 (58.5%) | 0.32 |
| Block within 5 mina | 35 (16.0%) | 57 (24.9%) | 0.02 |
| Reasons for ablation failure, n (%) | |||
| No effect on rhythm | 11 (5.0%) | 9 (3.9%) | 0.58 |
| Unusable catheter due to excessive char, coagulum or thrombus formation | 10 (4.6%) | 1 (0.4%) | 0.005 |
| PQ prolongation, risk of AV block | 0 | 1 (0.4%) | 1.00 |
| Bad curve steering | 2 (0.9%) | 1 (0.4%) | 0.62 |
| Repeated catheter dislocation | 1 (0.5%) | 1 (0.4%) | 1.00 |
| Mean RF duration until failure ± SD, minb | 19.3 ± 9.5 | 21.6 ± 10.2 | 0.50 |
| Median (IQR) | 21.3 (11.8, 27.7) | 26.1 (12.0, 29.3) | |
| Outcome after ablation failure, n (%) | |||
| Success with another catheter | 7 | 6 | – |
| No success with another catheter | 4 | 0 | – |
| Further procedure not documented | 13 | 7 | – |
aDuration of RF energy application to bidirectional cavotricuspid isthmus block, including safety applications.
bDuration of RF energy application until admitting ablation failure with the test catheter.
AV, atrioventricular; IQR, interquartile range; Pt–Ir, platinum–iridium; RF, radiofrequency ablation.
| . | Pt–Ir tip (n = 219) . | Gold-tip (n = 229) . | P . |
|---|---|---|---|
| Ablation success with the first catheter, n (%) | |||
| Total | 195 (89.0%) | 216 (94.3%) | 0.042 |
| Block within 25 mina | 192 (87.7%) | 210 (91.7%) | 0.16 |
| Block within 20 mina | 176 (80.4%) | 201 (87.8%) | 0.03 |
| Block within 15 mina | 156 (71.2%) | 180 (78.6%) | 0.07 |
| Block within 10 mina | 118 (53.9%) | 134 (58.5%) | 0.32 |
| Block within 5 mina | 35 (16.0%) | 57 (24.9%) | 0.02 |
| Reasons for ablation failure, n (%) | |||
| No effect on rhythm | 11 (5.0%) | 9 (3.9%) | 0.58 |
| Unusable catheter due to excessive char, coagulum or thrombus formation | 10 (4.6%) | 1 (0.4%) | 0.005 |
| PQ prolongation, risk of AV block | 0 | 1 (0.4%) | 1.00 |
| Bad curve steering | 2 (0.9%) | 1 (0.4%) | 0.62 |
| Repeated catheter dislocation | 1 (0.5%) | 1 (0.4%) | 1.00 |
| Mean RF duration until failure ± SD, minb | 19.3 ± 9.5 | 21.6 ± 10.2 | 0.50 |
| Median (IQR) | 21.3 (11.8, 27.7) | 26.1 (12.0, 29.3) | |
| Outcome after ablation failure, n (%) | |||
| Success with another catheter | 7 | 6 | – |
| No success with another catheter | 4 | 0 | – |
| Further procedure not documented | 13 | 7 | – |
| . | Pt–Ir tip (n = 219) . | Gold-tip (n = 229) . | P . |
|---|---|---|---|
| Ablation success with the first catheter, n (%) | |||
| Total | 195 (89.0%) | 216 (94.3%) | 0.042 |
| Block within 25 mina | 192 (87.7%) | 210 (91.7%) | 0.16 |
| Block within 20 mina | 176 (80.4%) | 201 (87.8%) | 0.03 |
| Block within 15 mina | 156 (71.2%) | 180 (78.6%) | 0.07 |
| Block within 10 mina | 118 (53.9%) | 134 (58.5%) | 0.32 |
| Block within 5 mina | 35 (16.0%) | 57 (24.9%) | 0.02 |
| Reasons for ablation failure, n (%) | |||
| No effect on rhythm | 11 (5.0%) | 9 (3.9%) | 0.58 |
| Unusable catheter due to excessive char, coagulum or thrombus formation | 10 (4.6%) | 1 (0.4%) | 0.005 |
| PQ prolongation, risk of AV block | 0 | 1 (0.4%) | 1.00 |
| Bad curve steering | 2 (0.9%) | 1 (0.4%) | 0.62 |
| Repeated catheter dislocation | 1 (0.5%) | 1 (0.4%) | 1.00 |
| Mean RF duration until failure ± SD, minb | 19.3 ± 9.5 | 21.6 ± 10.2 | 0.50 |
| Median (IQR) | 21.3 (11.8, 27.7) | 26.1 (12.0, 29.3) | |
| Outcome after ablation failure, n (%) | |||
| Success with another catheter | 7 | 6 | – |
| No success with another catheter | 4 | 0 | – |
| Further procedure not documented | 13 | 7 | – |
aDuration of RF energy application to bidirectional cavotricuspid isthmus block, including safety applications.
bDuration of RF energy application until admitting ablation failure with the test catheter.
AV, atrioventricular; IQR, interquartile range; Pt–Ir, platinum–iridium; RF, radiofrequency ablation.
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