{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T10:57:54Z","timestamp":1740135474053,"version":"3.37.3"},"reference-count":18,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2022,8,31]],"date-time":"2022-08-31T00:00:00Z","timestamp":1661904000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,8,31]],"date-time":"2022-08-31T00:00:00Z","timestamp":1661904000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"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<\/jats:title>\n                <jats:p>We sought to clarify the electrophysiological (EP) characteristics of premature ventricular contractions (PVCs) with acute successful radiofrequency catheter ablation (RFCA) near the atrioventricular node (AVN).<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods and results<\/jats:title>\n                <jats:p>Eighteen patients with acute successful RFCA near the AVN were included in this study. Systematic mapping was performed with two mapping methods: antegrade mapping technique (group A) and reversed C curve mapping technique (group R). RFCA was preferentially performed underneath the tricuspid valve (TV) with reversed C curve technique in all patients. The a amplitude\/v amplitude ratio during sinus rhythm in group A was significantly larger than in group B (0.19\u2009\u00b1\u20090.10 vs 0.06\u2009\u00b1\u20090.02, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01). The earliest bipolar activation preceded the QRS onset in group A was significantly smaller than in group R (19.6\u2009\u00b1\u20094.9 vs 24.4\u2009\u00b1\u20096.6\u00a0ms (ms), <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.01). Pace mapping in group A and group R demonstrated perfect QRS morphology (12\/12) match only in 5.6% (one patient) and 16.7% (3 patients) of patients, respectively. The mean duration of successful RFCA was 8.2\u2009\u00b1\u20092.4\u00a0s in 13 patients (72.2%). Early (within 3\u00a0days) and late (one-year) recurrence rates were 5.6% (one patient) and 16.7% (3 patients), respectively. No atrioventricular block occurred during RFCA or the one-year follow up.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>PVCs near the AVN are a subgroup of idiopathic PVCs with distinctive EP features. RFCA using reversed C curve technique is effective and safe for the acute elimination of these challenging AVN-PVCs.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12872-022-02832-1","type":"journal-article","created":{"date-parts":[[2022,8,31]],"date-time":"2022-08-31T04:04:36Z","timestamp":1661918676000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Premature ventricular contractions with acute successful radiofrequency catheter ablation near the atrioventricular node using reversed C curve technique"],"prefix":"10.1186","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2739-2740","authenticated-orcid":false,"given":"Zhonghui","family":"Hu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4648-8262","authenticated-orcid":false,"given":"Yunsheng","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3994-2519","authenticated-orcid":false,"given":"Su","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2022,8,31]]},"reference":[{"issue":"1","key":"2832_CR1","doi-asserted-by":"publisher","first-page":"e155","DOI":"10.1016\/j.hrthm.2019.03.014","volume":"17","author":"EM Cronin","year":"2020","unstructured":"Cronin EM, Bogun FM, Maury P, Peichl P, Chen M, Namboodiri N, Aguinaga L, Leite LR, Al-Khatib SM, Anter E, et al. 2019 HRS\/EHRA\/APHRS\/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias: executive summary. 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Written informed consent was obtained from all participants. All experiments and methods in this study were performed in accordance with the declaration of Helsinki.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"390"}}