Figure 1. A 64-year-old male with type 2 diabetes mellitus
and a prior history of anterior myocardial infarction (Case
7).
ATP injection after the initial PV isolation revealed dormant left PV
conduction (black arrow) and also simultaneously induced AF by the
trigger PACs from the CS (red arrow).
B and C . Therefore, we performed HFS within the CS, which
elicited vagal responses at five sites. Brown tags are ablation lesions.
Yellow and orange markers indicate the sites with a positive and
negative response to HFS, respectively.