{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T00:43:36Z","timestamp":1768524216965,"version":"3.49.0"},"reference-count":19,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2017,3,21]],"date-time":"2017-03-21T00:00:00Z","timestamp":1490054400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000050","name":"National Heart, Lung, and Blood Institute","doi-asserted-by":"publisher","award":["K23 HL102069"],"award-info":[{"award-number":["K23 HL102069"]}],"id":[{"id":"10.13039\/100000050","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000097","name":"National Center for Research Resources","doi-asserted-by":"publisher","award":["UL1 RR024975"],"award-info":[{"award-number":["UL1 RR024975"]}],"id":[{"id":"10.13039\/100000097","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000097","name":"National Center for Research Resources","doi-asserted-by":"publisher","award":["UL1 TR000445"],"award-info":[{"award-number":["UL1 TR000445"]}],"id":[{"id":"10.13039\/100000097","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2017,5]]},"abstract":"<jats:title>Surface ECG f Wave Analysis X<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Dominant frequency (DF) analysis of electrocardiograms (ECGs) from patients with paroxysmal (PAF) and persistent (PeAF) atrial fibrillation has identified higher DFs in PeAF. We therefore hypothesized that among patients initially presenting to the emergency department (ED) with new onset AF, surface ECG features could differentiate PeAF from PAF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and Results<\/jats:title><jats:p>Initial 12\u2010lead ECGs from patients presenting to the ED with a first episode of symptomatic AF were analyzed. Following QRS\u2010T subtraction, fast Fourier transform (FFT) analysis of the AF fibrillatory waves was performed to measure DF and organization index (OI). Median DF of all leads and the DF in the lead with maximum OI were determined. Maximum f wave amplitude and vector magnitudes were measured. One hundred sixty\u2010one patients (age 59 \u00b1 16 years, 68% men) were included in this analysis, of whom 96 (58%) spontaneously converted to sinus rhythm within 7 days (PAF group). The remaining 65 patients underwent cardioversion or remained in AF (PeAF group). ECG features (DF, OI, f wave amplitude, and vector magnitude) did not differ among PAF and PeAF patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>ECG features (DF, OI, amplitude, vector magnitude) do not differ among patients with PAF versus PeAF when the ECGs are obtained at the initial onset of symptoms. Thus, prior data showing higher DF in PeAF likely reflect electrophysiologic remodeling rather than a marker for any specific type of AF or extent of underlying substrate.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.13188","type":"journal-article","created":{"date-parts":[[2017,2,11]],"date-time":"2017-02-11T16:32:38Z","timestamp":1486830758000},"page":"498-503","source":"Crossref","is-referenced-by-count":3,"title":["Surface ECG f Wave Analysis at Initial Onset of Paroxysmal and Persistent Atrial Fibrillation"],"prefix":"10.1111","volume":"28","author":[{"given":"PARTH","family":"SHARMA","sequence":"first","affiliation":[{"name":"Feinberg School of Medicine Northwestern University  USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"TYLER W.","family":"BARRETT","sequence":"additional","affiliation":[{"name":"Vanderbilt University Medical Center  Nashville Tennessee USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"JASON","family":"NG","sequence":"additional","affiliation":[{"name":"Center for Cardiovascular Innovation and the Division of Cardiology, Feinberg School of Medicine Northwestern University  Illinois USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"CLAIRE","family":"KNOTEN","sequence":"additional","affiliation":[{"name":"Center for Cardiovascular Innovation and the Division of Cardiology, Feinberg School of Medicine Northwestern University  Illinois USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ALLISON J.","family":"FERREIRA","sequence":"additional","affiliation":[{"name":"Vanderbilt University Medical Center  Nashville Tennessee USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"JEFFREY J.","family":"GOLDBERGER","sequence":"additional","affiliation":[{"name":"Center for Cardiovascular Innovation and the Division of Cardiology, Feinberg School of Medicine Northwestern University  Illinois USA"},{"name":"Miller School of Medicine University of Miami  Florida USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,3,21]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.114.008201"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjcard.2013.07.005"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.annemergmed.2010.07.005"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-0736(03)00046-3"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9149(98)00210-0"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1093\/europace\/eul113"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2010.10.030"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/jce.12645"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2004.09.010"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.104.517011"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.115.016795"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1088\/0967-3334\/30\/5\/005"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jjcc.2015.06.006"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.113.004742"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2004.10.035"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.108.811877"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1586\/erc.10.177"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1093\/europace\/eun045"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2005.10.071"}],"container-title":["Journal of Cardiovascular Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjce.13188","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jce.13188","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,27]],"date-time":"2023-09-27T08:53:29Z","timestamp":1695804809000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jce.13188"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,3,21]]},"references-count":19,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2017,5]]}},"alternative-id":["10.1111\/jce.13188"],"URL":"https:\/\/doi.org\/10.1111\/jce.13188","archive":["Portico"],"relation":{},"ISSN":["1045-3873","1540-8167"],"issn-type":[{"value":"1045-3873","type":"print"},{"value":"1540-8167","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,3,21]]}}}