{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T04:42:55Z","timestamp":1786336975040,"version":"build-2736575974"},"reference-count":22,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,11,3]],"date-time":"2017-11-03T00:00:00Z","timestamp":1509667200000},"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":[[2018,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Assess the prevalence and predictors of left atrial tachycardia (LAT) after cryoballoon ablation of pulmonary veins.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and results<\/jats:title><jats:p>Patients who underwent catheter ablation of pulmonary veins with a second\u2010generation cryoballoon for symptomatic paroxysmal (151 of 270, 56%) or persistent (119 of 270, 44%) atrial fibrillation were entered in a single\u2010center prospective registry. Patients who experienced postcryoballoon LAT (pcryo\u2010LAT) were selected on the basis of 12\u2010lead ECG characteristics. Left atrial origin was confirmed during conventional EP study and electroanatomical activation mapping, and patients were treated by RF catheter ablation.<\/jats:p><jats:p>Pcryo\u2010LAT was observed in 15 (5.6%) of 270 patients and was attributed to a reentrant mechanism in 11 patients (73%). The other four cases of pcryo\u2010LAT were due to focal atrial tachycardia associated with reconnection of one pulmonary vein. In comparison with patients who remained in sinus rhythm, LA area (HR\u00a0=\u00a01.09; CI 1.01, 1.2; P\u00a0=\u00a00.02), LVEF (HR\u00a0=\u00a00.94; CI 0.90, 0.97; P\u00a0&lt;\u00a00.001), and LVEF\u00a0&lt;50% (HR\u00a0=\u00a08.5; CI 3.1, 23.6; P\u00a0&lt;\u00a00.001) were predictors of pcryo\u2010LAT. After multivariate Cox analysis, only left ventricular ejection fraction\u00a0&lt;\u00a050% remained predictive of pcryo\u2010LAT, (HR\u00a0=\u00a07.8, CI 2.3 26.7, P\u00a0=\u00a00.002). With a mean survival of 23 months, 73% of patients who experienced pcryo\u2010LAT were in sinus rhythm versus 78% of patients without pcryo\u2010LAT (log rank P\u00a0=\u00a00.85).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The prevalence of pcryo\u2010LAT in patients with atrial fibrillation is low. Left ventricular ejection fraction\u00a0&lt;\u00a050% is associated with an increased risk of pcryo\u2010LAT. When treated by RF catheter ablation, the presence of pcryo\u2010LAT is not a predictive factor of subsequent recurrence of atrial fibrillation during follow\u2010up.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.13364","type":"journal-article","created":{"date-parts":[[2017,10,11]],"date-time":"2017-10-11T13:02:46Z","timestamp":1507726966000},"page":"46-54","source":"Crossref","is-referenced-by-count":16,"title":["Prevalence and predictive factors of left atrial tachycardia occurring after second\u2010generation cryoballoon ablation of atrial fibrillation"],"prefix":"10.1111","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2392-3759","authenticated-orcid":false,"given":"Alexis","family":"Hermida","sequence":"first","affiliation":[{"name":"Cardiac Arrhythmia Service Amiens\u2010Picardie University Hospital  France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maciej","family":"Kubala","sequence":"additional","affiliation":[{"name":"Cardiac Arrhythmia Service Amiens\u2010Picardie University Hospital  France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah","family":"Traull\u00e9","sequence":"additional","affiliation":[{"name":"Cardiac Arrhythmia Service Amiens\u2010Picardie University Hospital  France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Otilia","family":"Buiciuc","sequence":"additional","affiliation":[{"name":"Cardiac Arrhythmia Service Amiens\u2010Picardie University Hospital  France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Serge","family":"Quenum","sequence":"additional","affiliation":[{"name":"Cardiac Arrhythmia Service Amiens\u2010Picardie University Hospital  France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean\u2010Sylvain","family":"Hermida","sequence":"additional","affiliation":[{"name":"Cardiac Arrhythmia Service Amiens\u2010Picardie University Hospital  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