Study design
Ablation was performed at a total of 549 points in 36
patients. The sites where dormant
conduction was induced or additional ablation was needed due to residual
SVC potentials after the circumferential ablation, were defined as
touch-up sites (n=36). The SVC was divided into four segments (Figure 1)
and the location of the touch up sites was analyzed.
The value of the AI was also
retrospectively calculated at every ablation site. We compared the
energy deliver time, power, CF, FTI, and AI between the touch up sites
and control sites (n=513). The local potentials at the ablation site
were obtained from the ablation catheter and compared among the 4 SVC
segments.