Table 2 Procedural data.
Shallow CTI | Deep CTI | p value | |
|---|---|---|---|
Number | 49 | 58 | |
Ablation time | 8 [6–11] | 13 [9–20] | < 0.01 |
CTI block at first pass | 40(81) | 20 (34) | < 0.01 |
Catheter inversion technique | 3(6) | 33(57) | < 0.01 |
RF time per application, s | |||
Global | 28.4 [26.7–29.4] | 28.2 [26.4–29.2] | 0.56 |
Ventricular side | 29.4 [27.3–29.6] | 28.3 [27.0–29.4] | 0.25 |
IVC side | 28.4 [25.5 -29.4] | 26.8 [24.8–29.4] | 0.21 |
Contact force, g | |||
Global | 10.5 [9.4–12.0] | 10.9 [9.7–12.4] | 0.27 |
Ventricular side | 10.9 [9.0–12.5] | 10.6 [9.4–12.6] | 0.98 |
IVC side | 10.0 [8.5–11.5] | 11.1 [9.1–14.0] | 0.04 |
Power, W | |||
Global | 29.0 [28.1–30.0] | 28.4 [27.2–30.2] | 0.11 |
Ventricular side | 30.0 [29.4–31.3] | 29.6 [28.5–30.6] | 0.06 |
IVC side | 26.9 [25.0–30.0] | 26.5 [25.0–29.5] | 0.24 |
FTI, gs | |||
Global | 278.7 [249.0–341.6] | 297.3 [256.5–353.8] | 0.39 |
Ventricular side | 271.5 [248.3–356.5] | 290.2 [251.9–332.8] | 0.96 |
IVC side | 267.0 [232.7–306.3] | 290.6 [238.3–375.8] | 0.15 |
Ablation index | |||
Global | 428.7 [411.6–444.3] | 425.6 [404.0–438.1] | 0.18 |
Ventricular side | 440.4 [420.9–452.3] | 432.9 [411.5–449.4] | 0.14 |
IVC side | 403.5 [390.7–419.0] | 402.0 [379.3–419.1] | 0.60 |
