{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T22:28:15Z","timestamp":1780612095845,"version":"3.54.1"},"reference-count":17,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T00:00:00Z","timestamp":1751328000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Bundle branch reentrant ventricular tachycardia (BBR\u2010VT) is a rare form of VT occurring in patients with structural heart disease (SHD). Rarely, it can also occur in the absence of SHD. Understanding its clinical and electrophysiologic (EP) properties and outcomes post\u2010catheter ablation (CA) is crucial.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>We present a series of patients with bundle branch reentrant ventricular tachycardia (BBR\u2010VT) and structurally normal hearts, comparing their clinical and electrophysiological characteristics, as well as long\u2010term outcomes, with those of patients with the classic form of BBR\u2010VT, in whom the arrhythmia was induced in the presence of ventricular dysfunction.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>All cases of BBR\u2010VT diagnosed during electrophysiological (EP) studies in our lab were evaluated. Clinical characteristics and EP findings were described.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Sixteen patients (12\/16 male; mean age 50\u2009\u00b1\u200921 years) with BBR\u2010VT were studied from 2009 to 2020, with a mean follow\u2010up of 70\u2009\u00b1\u200916 months. Notably, nearly half (7\/16; 43%) had no structural heart disease (SHD). Among these, three had myotonic dystrophy, two had SCN5A mutations, one had ajmaline\u2010induced BBR\u2010VT, and one had idiopathic BBR\u2010VT. BBR\u2010VT was induced with a mean cycle length of 322\u2009\u00b1\u200922\u2009ms and was well tolerated in 10\/16 patients. Right bundle branch catheter ablation was performed using an 8\u2009mm solid\u2010tip catheter, leading to an HV interval increase from 72\u2009\u00b1\u20099\u2009ms to 100\u2009\u00b1\u200923\u2009ms. One patient developed total AV block. Postprocedure, device implantation was required in 13\/16 patients (dual\u2010chamber pacemaker: 10; ICD: 3). Notably, no patient experienced VT recurrence during follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>BBR\u2010VT is traditionally associated with dilated cardiomyopathy, but it can also occur in structurally normal hearts. Myotonic dystrophy and SCN5A mutations may underlie some cases. Right bundle branch ablation is an effective treatment, though device implantation is usually required.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.16777","type":"journal-article","created":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T00:39:23Z","timestamp":1751416763000},"page":"2140-2150","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Long\u2010Term Follow\u2010Up of Inducible Bundle Branch Reentrant Ventricular Tachycardia in Patients Without Structural Heart Disease: Beyond the Electrophysiology Laboratory"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6697-7074","authenticated-orcid":false,"given":"Muhieddine Omar","family":"Chokr","sequence":"first","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haroldo Heitor Ribeiro","family":"Filho","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roberto Alvarez","family":"Coello","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rodrigo Melo","family":"Kulchetscki","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucas","family":"Moura","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francisco","family":"Darrieux","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Denise T.","family":"Hachul","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luciana","family":"Sacilotto","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tan C.","family":"Wu","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro M.","family":"Vandoni","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3626-924X","authenticated-orcid":false,"given":"Italo B.","family":"Souza","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro","family":"Linhares","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristiano F.","family":"Pisani","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carina A.","family":"Hardy","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mauricio I.","family":"Scanavacca","sequence":"additional","affiliation":[{"name":"Arrhythmia Unit, Heart Institute University of Sao Paulo Medical School s\u00e3o Paulo Brazil 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