{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T14:02:53Z","timestamp":1773324173811,"version":"3.50.1"},"reference-count":22,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2011,11,6]],"date-time":"2011-11-06T00:00:00Z","timestamp":1320537600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pacing Clinical Electrophis"],"published-print":{"date-parts":[[2012,1]]},"abstract":"<jats:p><jats:bold>\n            <jats:italic>Background:<\/jats:italic>\n          <\/jats:bold>\u2002<jats:italic>Paroxysmal atrial fibrillation (PAF) can be treated with pulmonary vein isolation (PVI). A spectral analysis can identify sites of high\u2010frequency activity during atrial fibrillation (AF). We investigated the role of the PVs on AF perpetuation by dominant frequency (DF) analysis.<\/jats:italic><\/jats:p><jats:p><jats:bold>\n            <jats:italic>Methods:<\/jats:italic>\n          <\/jats:bold>\u2002<jats:italic>Thirty\u2010one consecutive patients with PAF who underwent PVI were included in the prospective study. DF was calculated in each of the PVs, 16, five, and five sites in the left atrium, the coronary sinus, and the right atrium, respectively. In patients presenting sinus rhythm at the baseline, AF was induced by pacing. The PVs were then divided into two groups; PVs demonstrated the highest DF (HDF\u2010PV) and others.<\/jats:italic><\/jats:p><jats:p><jats:bold>\n            <jats:italic>Results:<\/jats:italic>\n          <\/jats:bold>\u2002<jats:italic>One patient was excluded from the analysis because sustained AF could not be induced. AF was terminated in 43.3% (13\/30) of patients during ablation. Of 92 PVs isolated during AF, 30 and 62 PVs were classified into the HDF\u2010PV and others, respectively. PAF was more frequently terminated by the HDF\u2010PV isolation compared to the others (33.3%[10\/30] vs 4.8%[3\/62], P = 0.0004). Interestingly, nine of the 30 HDF\u2010PVs showing the highest DF among all 30 regions, including extra PVs, led to AF termination in 88.9% (eight out of nine) of cases. Moreover, the HDF\u2010PVs isolation resulted in a greater AF cycle length prolongation than the other PVs isolation (12.1\u00b15.0 vs 2.7\u00b17.6 ms, P = 0.007).<\/jats:italic><\/jats:p><jats:p><jats:bold>\n            <jats:italic>Conclusion:<\/jats:italic>\n          <\/jats:bold>\u2002<jats:italic>Termination of PAF was more frequently observed during ablation of the PVs with the highest DF. The PV showing high DF played an important role in the maintenance of PAF. 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