Outcome of the Catheter Ablation
A Kaplan-Meier event-free survival analysis was conducted to assess the
cumulative freedom from AF/AT recurrence. One patient had AT recurrences
after one procedure. The atrial arrythmia freedom off anti-arrhythmic
drugs after the PVI was significantly lower in the patients with
high-DFs sites ≧7Hz overlapping with LVAs than in those without high-DFs
sites overlapping with LVAs during 11.6±0.8 months of follow-up (35.7%
vs. 69.5%, p=0.008). (Figure 4A ). However, there was no
significant difference in the %NPs≧50% overlapping with LVAs between
the two groups (Figure 4B ). The number of patients receiving
post ablation anti-arrhythmic drugs (AADs) during the follow-up was 16
(22%) among those with recurrent AF. There were no cases of cerebral
infarctions, cardiac tamponade, PV stenosis, or atrial-esophageal
fistulae.