2 Complete PV isolation and ablation of CFAE sites was achieved in all 50 patients evaluated in the nonrandomized study, and success rates of 80% at 6 months and 66% at 20 months were attained.

These ectopic foci can be localized to the PV in about 90% of people with paroxysmal AF. Most patients only have one or two foci, making them easier targets for ablation. The majority of the foci ...

(2) After ablation, the reduction in the diameters of both the PV ostium and the ablation site in the ablated veins, as well as the reduction in the diameter of the PV ostium in the nonablated PVs ...