{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T17:57:50Z","timestamp":1721066270360},"reference-count":23,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2017,3,20]],"date-time":"2017-03-20T00:00:00Z","timestamp":1489968000000},"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":[[2017,5]]},"abstract":"<jats:title>Focal AT and Recurrence After AF Ablation<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Catheter ablation can terminate persistent atrial fibrillation (AF). However, atrial tachycardia (AT) often arises after termination of AF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and Results<\/jats:title><jats:p>Of 215 patients who underwent index stepwise ablation for persistent AF, 141 (66%) patients (64 \u00b1 9 years) in whom AF terminated during the ablation procedure were studied. If AF converted into AT, ablation for AT was subsequently performed. ATs were categorized as focal or macroreentrant AT. We assessed whether type of AT occurring after conversion of AF during the ablation procedure was associated with freedom from atrial tachyarrhythmia (AF or AT) during follow\u2010up. Sinus rhythm was directly restored from AF in 37 patients, while 34, 37, and 33 patients had focal AT alone, a mix of focal and macroreentrant AT, and macroreentrant AT alone after termination of AF, respectively. Arrhythmia\u2010free survival rates at 1 year after the index procedure were 30%, 34%, 61%, and 59% in the patients with focal AT alone, a mix of focal AT and macroreentrant AT, macroreentrant AT alone, and direct restoration of sinus rhythm, respectively (P = 0.004). Type of AT occurring during the index procedure was associated with type of recurrent AT (P = 0.03), but the origin of focal AT occurring during the index ablation differed from that of the recurrent AT in 85% of patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>In patients who had AF termination by ablation, occurrence of focal AT during the ablation procedure was associated with worse clinical outcome than occurrence of macroreentrant AT, likely due to ATs arising from other foci during follow\u2010up.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.13187","type":"journal-article","created":{"date-parts":[[2017,2,11]],"date-time":"2017-02-11T10:36:41Z","timestamp":1486809401000},"page":"489-497","source":"Crossref","is-referenced-by-count":1,"title":["Occurrence of Focal Atrial Tachycardia During the Ablation Procedure Is Associated With Arrhythmia Recurrence After Termination of Persistent Atrial Fibrillation"],"prefix":"10.1111","volume":"28","author":[{"given":"SHINSUKE","family":"IWAI","sequence":"first","affiliation":[{"name":"Department of Cardiovascular Medicine Disaster Medical Center  Tokyo Japan"},{"name":"Department of Cardiovascular Medicine Tokyo Medical and Dental University  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"YOSHIHIDE","family":"TAKAHASHI","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine Disaster Medical Center  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"MAYUMI","family":"MASUMURA","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine Disaster Medical Center  Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"SYU","family":"YAMASHITA","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine Disaster Medical Center  Tokyo 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