Figure 6. LA Activation Map during Pacing from the Right Inferior PV
The earliest site was broad and located in the RA posterior wall. Extensive ablation at the site did not result in PV isolation. Single radiofrequency application at the right PV carina (indicated by a pink tag) achieved isolation of the right PVs. LA, left atrium; PV, pulmonary vein; RA, right atrium; RIPV, right inferior PV.