{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T15:53:39Z","timestamp":1753890819555,"version":"3.41.2"},"reference-count":8,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,1,11]],"date-time":"2023-01-11T00:00:00Z","timestamp":1673395200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cardiovasc. Med."],"abstract":"<jats:p>Premature ventricular contractions (PVCs) stemming from the aortic sinus cusp often have preferential conduction to two exits in the outflow tract and exhibited two different morphologies of PVCs, which may render radiofrequency catheter ablation (RFCA) difficult. A 67-year-old male patient underwent RACF for premature ventricular contractions (PVCs) characterizing by bi-morphology (left and right bundle branch block) on electrocardiogram. Dynamic changes in QRS morphology during ablation and evident local voltage potentials during electro-anatomical mapping were critical for identifying the real foci of origin of PVCs. Successful ablation was achieved at the left-right coronary cusp commissure.<\/jats:p>","DOI":"10.3389\/fcvm.2022.1008380","type":"journal-article","created":{"date-parts":[[2023,1,11]],"date-time":"2023-01-11T06:31:03Z","timestamp":1673418663000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Successful ablation of morphology-changing premature ventricular contractions under the guidance of local voltage potentials: A case report"],"prefix":"10.3389","volume":"9","author":[{"given":"Yang","family":"Chen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuncai","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"He","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Liao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2023,1,11]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1272\/jnms.2018_85-14","article-title":"Idiopathic ventricular premature contraction and ventricular tachycardia: distribution of the origin, diagnostic algorithm, and catheter ablation.","volume":"85","author":"Kobayashi","year":"2018","journal-title":"J Nippon Med Sch."},{"key":"B2","doi-asserted-by":"publisher","first-page":"41","DOI":"10.1016\/j.jelectrocard.2020.09.015","article-title":"A case of outflow tract premature ventricular contractions with very distant exit sites suspected to have a single origin.","volume":"63","author":"Sekihara","year":"2020","journal-title":"J Electrocardiol."},{"key":"B3","doi-asserted-by":"publisher","first-page":"1029","DOI":"10.1111\/pace.12652","article-title":"Catheter ablation of premature ventricular contractions originating in the aortic sinus cusp or great cardiac vein: two QRS morphologies with one origin.","volume":"38","author":"Wang","year":"2015","journal-title":"Pacing Clin Electrophysiol."},{"key":"B4","doi-asserted-by":"publisher","first-page":"444","DOI":"10.1093\/europace\/euq401","article-title":"Changing QRS morphology during catheter ablation of outflow tract ventricular tachycardia: what is the mechanism?","volume":"13","author":"Andrea","year":"2011","journal-title":"Europace."},{"key":"B5","doi-asserted-by":"publisher","first-page":"169","DOI":"10.1016\/j.ipej.2021.02.008","article-title":"PVCs with multiple exits and single site of origin in the outflow tract: what is the mechanism?","volume":"21","author":"Subramanian","year":"2021","journal-title":"Indian Pacing Electrophysiol J."},{"key":"B6","doi-asserted-by":"publisher","first-page":"2665","DOI":"10.1111\/jce.14656","article-title":"Idiopathic right ventricular arrhythmias with changes in the QRS morphology after ablation.","volume":"31","author":"El Moheb","year":"2020","journal-title":"J Cardiovasc Electr."},{"key":"B7","doi-asserted-by":"publisher","first-page":"2990","DOI":"10.1111\/jce.14228","article-title":"Variation of QRS morphology of premature ventricular contractions originate from the left-ventricular outflow tract during ablation.","volume":"30","author":"Qifang","year":"2019","journal-title":"J Cardiovasc Electr."},{"key":"B8","doi-asserted-by":"publisher","first-page":"850","DOI":"10.1093\/europace\/euq090","article-title":"The role of local voltage potentials in outflow tract ectopy.","volume":"12","author":"Bloch Thomsen","year":"2010","journal-title":"Europace."}],"container-title":["Frontiers in Cardiovascular Medicine"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fcvm.2022.1008380\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,1,11]],"date-time":"2023-01-11T06:31:04Z","timestamp":1673418664000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fcvm.2022.1008380\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,1,11]]},"references-count":8,"alternative-id":["10.3389\/fcvm.2022.1008380"],"URL":"https:\/\/doi.org\/10.3389\/fcvm.2022.1008380","relation":{},"ISSN":["2297-055X"],"issn-type":[{"type":"electronic","value":"2297-055X"}],"subject":[],"published":{"date-parts":[[2023,1,11]]},"article-number":"1008380"}}