{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T04:41:05Z","timestamp":1784004065338,"version":"3.55.0"},"reference-count":20,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2017,12,22]],"date-time":"2017-12-22T00:00:00Z","timestamp":1513900800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Noninvasive Electrocardiol"],"published-print":{"date-parts":[[2018,7]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>To determine whether the presence of \u201ccoarse\u201d fibrillatory waves (Fw) seen on surface <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content>s of patients with persistent atrial fibrillation (<jats:styled-content style=\"fixed-case\">AF<\/jats:styled-content>) predict maintenance of sinus rhythm (<jats:styled-content style=\"fixed-case\">SR<\/jats:styled-content>) at 6\u00a0weeks after electrical cardioversion (<jats:styled-content style=\"fixed-case\">ECV<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Preprocedure <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content>s from 94 consecutive patients with persistent <jats:styled-content style=\"fixed-case\">AF<\/jats:styled-content> scheduled to undergo <jats:styled-content style=\"fixed-case\">ECV<\/jats:styled-content> at a single centre were classified as having coarse Fw (\u22650.1\u00a0mV) or fine Fw (&lt;0.1\u00a0mV) in leads <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> or V<jats:sub>1<\/jats:sub>. The primary outcome was <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content> rhythm at 6\u2010week clinical follow\u2010up. Demographic and echocardiographic data were also collected.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thirty\u2010two patient <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content>s (34%) had coarse Fw on baseline <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content> in either or both leads <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> or V<jats:sub>1<\/jats:sub> with no significant differences in baseline demographics compared to those patients with fine Fw. At 6\u00a0weeks post\u2010<jats:styled-content style=\"fixed-case\">ECV<\/jats:styled-content>, in the coarse Fw group 72% of patients maintained <jats:styled-content style=\"fixed-case\">SR<\/jats:styled-content> vs. 42% in the fine Fw group (\u03c7<jats:sup>2<\/jats:sup>, <jats:italic>p\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>.006) with the odds ratio (<jats:styled-content style=\"fixed-case\">OR<\/jats:styled-content>) of maintaining <jats:styled-content style=\"fixed-case\">SR<\/jats:styled-content> at 6\u00a0weeks in the presence of coarse Fw being 3.5 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>: 1.4\u20138.9, <jats:italic>p\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>.007). Across the overall study population, there were no other significant univariate predictors of <jats:styled-content style=\"fixed-case\">SR<\/jats:styled-content> at 6\u00a0weeks post\u2010<jats:styled-content style=\"fixed-case\">ECV<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Classifying persistent <jats:styled-content style=\"fixed-case\">AF<\/jats:styled-content> using the maximal Fw amplitude on a surface <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content> is a simple and reproducible method of predicting medium\u2010term success of <jats:styled-content style=\"fixed-case\">ECV<\/jats:styled-content>, independent of traditional risk factors.<\/jats:p><\/jats:sec>","DOI":"10.1111\/anec.12528","type":"journal-article","created":{"date-parts":[[2017,12,24]],"date-time":"2017-12-24T07:54:16Z","timestamp":1514102056000},"source":"Crossref","is-referenced-by-count":10,"title":["Coarse fibrillatory waves in atrial fibrillation predict success of electrical cardioversion"],"prefix":"10.1111","volume":"23","author":[{"given":"Tian X.","family":"Zhao","sequence":"first","affiliation":[{"name":"Department of Cardiology Bedford Hospital  Bedford UK"},{"name":"Division of Cardiovascular Medicine Department of Medicine University of Cambridge  Cambridge UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire A.","family":"Martin","sequence":"additional","affiliation":[{"name":"Department of Cardiology Bedford Hospital  Bedford UK"},{"name":"Department of Cardiology Papworth Hospital NHS Foundation Trust  Cambridge UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John P.","family":"Cooper","sequence":"additional","affiliation":[{"name":"Department of Cardiology Bedford Hospital  Bedford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3312-0183","authenticated-orcid":false,"given":"Parag R.","family":"Gajendragadkar","sequence":"additional","affiliation":[{"name":"Department of Cardiology Bedford Hospital  Bedford UK"},{"name":"Division of Cardiovascular Medicine Radcliffe Department of Medicine University of Oxford  Oxford UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2017,12,22]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2013.280521"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/clc.4960190406"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/pace.12561"},{"key":"e_1_2_5_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/europace\/eul072"},{"key":"e_1_2_5_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehw210"},{"key":"e_1_2_5_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(79)90354-5"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0167-5273(03)00024-X"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10840-009-9398-3"},{"key":"e_1_2_5_10_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.33.4.599"},{"key":"e_1_2_5_11_1","volume-title":"Clinical trials: A practical approach","author":"Pocock S. 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