{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T11:25:55Z","timestamp":1740137155424,"version":"3.37.3"},"reference-count":25,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,1,31]],"date-time":"2024-01-31T00:00:00Z","timestamp":1706659200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Despite rapid technological progress, some arrhythmias are still resistant to standard unipolar ablation. These include arrhythmias arising from the base of the heart, cardiac crux, or epicardium. Bipolar radiofrequency ablation (B\u2010RFA) may be useful in some cases, however, data on the efficacy of this approach in various arrhythmia localizations are scarce. The aim of this study was to assess the efficacy of B\u2010RFA in patients with ventricular arrhythmias originating from various locations, occurring refractory to standard unipolar ablation approaches.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>An observational, single center study was conducted over a 30\u2010month period. B\u2010RFA were performed using dedicated radio frequency (RF) generator and electroanatomic mapping system.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Twenty\u2010four procedures, in 23 patients with a median (range) of 1 (1\u20132) previously failed unipolar ablation procedures, were included in the final analysis. There were 12 ablations of ventricular arrhythmias originating from interventricular septum with an acute success rate of 75%, and 12 from left ventricular (LV) summit with an acute success rate of 58%. The midterm success rate (median\u00a0interquartile range follow\u2010up of 205 days [188\u2013338]) was 66% and 50%, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>B\u2010RFA is a promising method of catheter ablation for refractory cardiac arrhythmias. A higher success rate was observed in ablation for difficult ventricular arrhythmias originating from interventricular septal region than LV summit.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.16186","type":"journal-article","created":{"date-parts":[[2024,1,31]],"date-time":"2024-01-31T09:04:41Z","timestamp":1706691881000},"page":"667-674","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Bipolar catheter ablation with dedicated radiofrequency system for highly refractory ventricular arrhythmia\u2014Does the rate of success depend on arrhythmia origin?"],"prefix":"10.1111","volume":"35","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-9768-3142","authenticated-orcid":false,"given":"Piotr","family":"Gardziejczyk","sequence":"first","affiliation":[{"name":"Division of Clinical Electrophysiology, Department of Cardiology Centre of Postgraduate Medical Education, Grochowski Hospital Warsaw 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