{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T19:51:40Z","timestamp":1760298700363},"reference-count":20,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2013,4,18]],"date-time":"2013-04-18T00:00:00Z","timestamp":1366243200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2013,8]]},"abstract":"<jats:title>Radiofrequency Applications for Spontaneous Dissociated Pulmonary Vein Activity<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The aim is to evaluate the efficacy of additional radiofrequency ablation (RFCA) for spontaneous dissociated pulmonary vein activity (DPV\u2010spike) after PV isolation (PVI) in patients with paroxysmal atrial fibrillation (AF).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>One hundred fifty\u2010two consecutive patients with paroxysmal AF referred for RFCA were enrolled. When DPV\u2010spike was documented after PVI, we randomly assigned these patients to receive additional RFCA for DPV\u2010spike or only PVI. We divided them into 4 groups: 87 patients without DPV\u2010spike after PVI (No\u2010spike group), 31 without DPV\u2010spike after additional RFCA (Successful group), 8 with remaining DPV\u2010spike after additional RFCA (Unsuccessful group), and 26 with DPV\u2010spike after only PVI (Spike group). AF recurrence was evaluated among the 4 groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>After PVI, DPV\u2010spike was documented in 87 PVs (14%) from 65 patients. During 16 \u00b1 9 months of follow\u2010up, the incidence of the freedom from AF was significantly higher in the No\u2010spike group than that in the Spike group and Unsuccessful group (P &lt; 0.05), and tended to be higher in the Successful group than that in the Spike group and Unsuccessful group (P = 0.08 and 0.11, respectively). In a multivariate analysis, the remaining PV\u2010spike after ablation was an independent predictor of AF recurrence (HR 2.44; CI 1.10\u20135.43, P &lt; 0.05). No major complications including PV stenosis were observed during the follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>DPV\u2010spike after PVI may be associated with higher electrical activity within the PVs and may be one of the risk factors for AF recurrence. Additional RFCA for DPV\u2010spike was effective to reduce the AF recurrence after PVI.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.12153","type":"journal-article","created":{"date-parts":[[2013,3,26]],"date-time":"2013-03-26T02:20:21Z","timestamp":1364264421000},"page":"894-901","source":"Crossref","is-referenced-by-count":11,"title":["Efficacy of Additional Radiofrequency Applications for Spontaneous Dissociated Pulmonary Vein Activity After Pulmonary Vein Isolation in Patients with Paroxysmal Atrial Fibrillation"],"prefix":"10.1111","volume":"24","author":[{"given":"ATSUSHI","family":"DOi","sequence":"first","affiliation":[{"name":"Department of Arrhythmia and Electrophysiology National Cerebral and Cardiovascular Center  Suita Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"KAZUHIRO","family":"SATOMI","sequence":"additional","affiliation":[{"name":"Department of Arrhythmia and Electrophysiology National Cerebral and Cardiovascular Center  Suita 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