3.5 Case presentation of a successful CST ablation technique
This case was a patient with paroxysmal AF who underwent de novoablation with a CB (Figure 3). The LSPV was not isolated after the first
CB application with an NT of -52°C and complete LSPV occlusion (Figure
4A). We did not add a CB application to the LSPV but instead attempted
LIPV ablation. At 21 seconds after initiating the ablation, both the
LSPV and LIPV were simultaneously isolated (Figure 4B). Furthermore,
frequent LIPV ectopic beats, which conducted to the LSPV without
conducting to the LA, were observed. These electrophysiological findings
could not be explained without the presence of an intervening connection
between the LSPV and LIPV.