{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T23:10:45Z","timestamp":1740179445129,"version":"3.37.3"},"reference-count":9,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2020,12,2]],"date-time":"2020-12-02T00:00:00Z","timestamp":1606867200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,12,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>We report an unusual case of non-sustained ventricular tachycardia (NSVT) from the epicardial part of the right ventricular outflow tract (RVOT).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Case summary<\/jats:title>\n                  <jats:p>A 37-year-old woman who underwent in 2006 an ablation for idiopathic ventricular premature beats (VPBs) from the RVOT presented with pre-syncopal NSVT in 2016. A cardiac workup showed no coronary disease, normal biventricular function, and no enhancement on cardiac magnetic resonance imaging. A metabolic positron emission tomography scan excluded inflammation. Biopsies revealed normal desmosomal proteins. An endocardial mapping revealed an area of low voltage potential (&amp;lt;0.5\u2009mV) at the antero-septal aspect of the RVOT corresponding to the initial site of ablation from 2006. Activation mapping revealed poor prematurity and pace-mapping showed unsatisfactory morphologies in the RVOT, the left ventricle outflow tract and the right coronary cusp. An epicardial map revealed a low voltage area at the antero-septal aspect of the RVOT with fragmented potentials opposite to the endocardial scar. Pace-mapping demonstrated perfect match. An NSVT was induced and local electrocardiogram showed mid-diastolic potentials. Ablation was applied epicardially and endocardially without any complication. The patient was arrhythmia free at 4-year follow-up.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Discussion<\/jats:title>\n                  <jats:p>Cardiac workup allowed to exclude specific conditions such as arrhythmogenic cardiomyopathy, tetralogy of Fallot, sarcoidosis, or myocarditis as a cause for NSVT from the RVOT. The epi and endocardial map showed residual scar subsequent to the first ablation which served as substrate for the re-entrant NSVT. This is the first case which describes NSVT from the epicardial RVOT as a complication from a previous endocardial ablation for idiopathic VPB.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/ehjcr\/ytaa434","type":"journal-article","created":{"date-parts":[[2020,12,2]],"date-time":"2020-12-02T13:53:39Z","timestamp":1606917219000},"page":"1-7","source":"Crossref","is-referenced-by-count":1,"title":["Re-entrant ventricular tachycardia as a complication of ablation of idiopathic ventricular premature beats from the right outflow tract: a case report"],"prefix":"10.1093","volume":"4","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3495-1667","authenticated-orcid":false,"given":"Van Nam","family":"Tran","sequence":"first","affiliation":[{"name":"Department of Heart and Vessel, Service of Cardiology, University Hospital of Lausanne (CHUV), Rue du Bugnon 46, CH-1011 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2508-3725","authenticated-orcid":false,"given":"Samuel","family":"Rotman","sequence":"additional","affiliation":[{"name":"Department for Laboratory Medicine and Pathology, Service of Pathology, Hospital of Lausanne and University of Lausanne, Rue du Bugnon 21, 1011 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patrice","family":"Carroz","sequence":"additional","affiliation":[{"name":"Department of Heart and Vessel, Service of Cardiology, University Hospital of Lausanne (CHUV), Rue du Bugnon 46, CH-1011 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Etienne","family":"Pruvot","sequence":"additional","affiliation":[{"name":"Department of Heart and Vessel, Service of Cardiology, University Hospital of Lausanne (CHUV), Rue du Bugnon 46, CH-1011 Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2020,12,2]]},"reference":[{"key":"2021010812302727600_ytaa434-B1","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1038\/nrcardio.2015.121","article-title":"Mechanism, diagnosis, and treatment of outflow tract tachycardia","volume":"12","author":"Lerman","year":"2015","journal-title":"Nat Rev Cardiol"},{"key":"2021010812302727600_ytaa434-B2","first-page":"57","article-title":"Reduced desmoplakin immunofluorescence signal in arrhythmogenic cardiomyopathy with epicardial right ventricular outflow tract tachycardia","volume":"5","author":"Rosset","year":"2019","journal-title":"Heart Rhythm Case Rep"},{"key":"2021010812302727600_ytaa434-B3","doi-asserted-by":"crossref","first-page":"481","DOI":"10.1016\/0735-1097(95)80026-D","article-title":"Relation of pace mapping QRS configuration and conduction delay to ventricular tachycardia reentry circuits in human infarct scars","volume":"26","author":"Stevenson","year":"1995","journal-title":"J Am Coll Cardiol"},{"key":"2021010812302727600_ytaa434-B4","doi-asserted-by":"crossref","first-page":"2241","DOI":"10.1161\/CIRCULATIONAHA.107.723551","article-title":"Catheter ablation of ventricular tachycardia after repair of congenital heart disease: electroanatomic identification of the critical right ventricular isthmus","volume":"116","author":"Zeppenfeld","year":"2007","journal-title":"Circulation"},{"key":"2021010812302727600_ytaa434-B5","doi-asserted-by":"crossref","first-page":"469","DOI":"10.1111\/j.1540-8167.2006.00434.x","article-title":"Catheter ablation of stable and unstable ventricular tachycardias in patients with arrhythmogenic right ventricular dysplasia","volume":"17","author":"Satomi","year":"2006","journal-title":"J Cardiovasc Electrophysiol"},{"key":"2021010812302727600_ytaa434-B6","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1016\/j.hrthm.2016.12.001","article-title":"Epicardial substrate ablation for Brugada syndrome","volume":"14","author":"Nademanee","year":"2017","journal-title":"Heart Rhythm"},{"key":"2021010812302727600_ytaa434-B7","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1111\/j.1540-8167.2011.02149.x","article-title":"Identification of unusual reentry circuit sites of nonischemic ventricular outflow tract tachycardia","volume":"23","author":"Nakano","year":"2012","journal-title":"J Cardiovasc Electrophysiol"},{"key":"2021010812302727600_ytaa434-B8","doi-asserted-by":"crossref","first-page":"1321","DOI":"10.1111\/jce.12488","article-title":"Atypical variants of right ventricular outflow arrhythmias","volume":"25","author":"Mulpuru","year":"2014","journal-title":"J Cardiovasc Electrophysiol"},{"key":"2021010812302727600_ytaa434-B9","doi-asserted-by":"crossref","first-page":"278","DOI":"10.1016\/j.jcmg.2009.09.028","article-title":"Assessment of radiofrequency ablation lesions by CMR imaging after ablation of idiopathic ventricular arrhythmias","volume":"3","author":"Ilg","year":"2010","journal-title":"JACC Cardiovasc Imaging"}],"container-title":["European Heart Journal - 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