Table 2.
Echocardiographic Features in Survival Group After RF Ablation
| Subject # | Catheter | Experimental Condition | Watts | Average Resistance, Ω | Wall Thickness, mm |
Wall Motion |
QRS Width, ms |
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Baseline | Edema After RF | Follow-Up | Immediate Post | Follow-Up | Baseline | Follow-Up | ||||||
| 1 | 4-F multipolar | 15 min, 65°C 4 weeks follow-up |
570 | 108 | 10.3 | 17.42 | 10.2 | Thinning (+) | Ⅱ | Ⅱ | NA | 106 |
| 2 | 4-F multipolar | 40 min, 65°C 8 weeks follow-up |
2,396 | 73 | 11.5 | 15.77 | 7.6 | Thinning (++) | Ⅱ | Ⅱ | NA | 75 |
| 3 | 4-F multipolar | 60 min, 65°C 8 weeks follow-up |
3,219 | 86 | 11.4 | 14.29 | 10.6 | Thinning (+) | Ⅲ | +/- | 67 | 72 |
| 4 | 4-F monopolar | 30 min, 80°C 6 weeks’ follow-up |
1,329 | 141 | 11.9 | 14.23 | 9.6 | Thinning (+) | Ⅱ | Ⅰ | 70 | 100 |
| 5 | 5-F monopolar | 30 min, 85°C 8 weeks’ follow-up |
2,259 | 65 | 11.6 | 20.02 | 7.4 | Thinning (++) | Ⅲ | Ⅱ | 70 | 107 |
| 6 | 5-F monopolar | 45 min, 55°C 8 weeks’ follow-up Performed with irrigation |
8,114 | 87 | 12.5 | 13.37 | 11.4 | Thinning (+) | Ⅱ | Ⅰ | 92 | 82 |
| 7 | 5-F monopolar | 15 min, 75°C Sudden death at 2 weeks Performed with irrigation |
1,608 | 57 | 11.7 | 18.27 | 9.6 | Thinning (+) | Ⅲ | Ⅲ | 97 | 95 |
The wall motion of visual estimation in echocardiography subjectively determined, where − = no abnormality, −/+ = mild abnormality, Ⅰ = abnormality length was shorter than catheter length, Ⅱ = abnormality length same length of the catheter, and Ⅲ = abnormality length was longer than catheter length. Thinning (+) was defined as a reduction of a septal thickness, <30% in the baseline at last follow-up. Thinning (++) was defined as reduction of septal thickness by 30% or greater than baseline at last follow-up.
NA = not available due to technical problems; RF = radio frequency.