{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T10:57:42Z","timestamp":1740135462547,"version":"3.37.3"},"reference-count":15,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2024,6,24]],"date-time":"2024-06-24T00:00:00Z","timestamp":1719187200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,6,24]],"date-time":"2024-06-24T00:00:00Z","timestamp":1719187200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100004001","name":"Guizhou Provincial Science and Technology Department","doi-asserted-by":"publisher","award":["(Qian Ke He Basic-ZK [2022] General 255)"],"award-info":[{"award-number":["(Qian Ke He Basic-ZK [2022] General 255)"]}],"id":[{"id":"10.13039\/501100004001","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Cardiovasc Disord"],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background and aims<\/jats:title>\n                <jats:p>Electrophysiological characteristics and radiofrequency catheter ablation (RFCA) of premature ventricular contractions (PVCs) originating from the superior septal left ventricle (SSLV) have not yet been fully characterized.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods and results<\/jats:title>\n                <jats:p>This study included 247 patients who underwent RFCA for PVCs arising from the ventricular outflow tract between February 2020 and August 2022. The successful ablation site was on the SSLV in 37 of the 247 patients. In 12 (32.4%) of those 37 patients, a low amplitude and high frequency spiky potential (SP) was recognized. Five patients showed a narrow QRS duration (86.8\u2009\u00b1\u20094.6 ms), with a discrete SP observed in PVCs and sinus rhythm, which showed an isoelectric line with the ventricular electrogram at the earliest activation site. Seven patients showed a wide QRS duration (131.6\u2009\u00b1\u20094.5 ms), with SP observed in PVCs without an isoelectric line with the ventricular electrogram. RFCA was successful at the site of the earliest SP in all 12 patients. The time from SP onset at the successful ablation site to the QRS onset (local activation time) was 30\u2009\u00b1\u200912 ms, which differed significantly from that for the remaining 25 patients withoutSP(22.1\u2009\u00b1\u20097.1 ms, <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>SPs were recorded in 12 (32.4%) of the 37 patients with PVCs originating from the SSLV. The morphology of the PVCs may show a narrow or wide QRS duration and the target site for successful ablation should be identified by the earliest SP.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12872-024-03979-9","type":"journal-article","created":{"date-parts":[[2024,6,24]],"date-time":"2024-06-24T02:01:33Z","timestamp":1719194493000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Electrophysiological characteristics and catheter ablation of ventricular arrhythmias arising from the superior septal left ventricle"],"prefix":"10.1186","volume":"24","author":[{"given":"Qifang","family":"Liu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ye","family":"Tian","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhi","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Longhai","family":"Tian","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ying","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Long","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2024,6,24]]},"reference":[{"key":"3979_CR1","doi-asserted-by":"publisher","first-page":"205","DOI":"10.1016\/j.hroo.2021.02.004","volume":"2","author":"FT Han","year":"2021","unstructured":"Han FT. Empiric ablation of asymptomatic PVCs when there is greater than 20% burden but normal left ventricular function-An argument in support of catheter ablation. Heart Rhythm. 2021;2:205\u20139.","journal-title":"Heart Rhythm"},{"issue":"17","key":"3979_CR2","doi-asserted-by":"publisher","first-page":"1404","DOI":"10.1161\/CIRCULATIONAHA.119.042434","volume":"141","author":"GM Marcus","year":"2020","unstructured":"Marcus GM. Evaluation and management of premature ventricular complexes. Circulation. 2020;141(17):1404\u201318.","journal-title":"Circulation"},{"key":"3979_CR3","doi-asserted-by":"publisher","first-page":"1631","DOI":"10.1016\/j.hrthm.2022.05.010","volume":"19","author":"J Zhang","year":"2022","unstructured":"Zhang J, Li K, Ding Y, Tang C. Terminal end of retro-aortic root branch: an unrecognized origin for proximal left anterior fascicle premature ventricular complexes with narrow QRS duration. 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Informed consent was obtained from all participants involved in the study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"The authors declare no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"316"}}