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This paper presents a novel method to discriminate persistent and long-standing atrial fibrillation patients by means of a time-frequency analysis of the surface electrocardiogram. Classification results provide approximately 75% accuracy when evaluating ECGs of consecutive unselected patients from a tertiary center and higher than 80% when patients are not under antiarrhythmic treatment or do not have structural heart disease (76% sensitivity and 88% specificity). Moreover, to our knowledge, this is the first study that discriminates between persistent and long-standing persistent subtypes in a heterogeneous population sample and without discontinuing antiarrhythmic therapy to patients. Thus, it can help clinicians to address the most suitable therapeutic approach for each patient.<\/jats:p>","DOI":"10.1515\/bmt-2014-0154","type":"journal-article","created":{"date-parts":[[2015,5,12]],"date-time":"2015-05-12T17:01:07Z","timestamp":1431450067000},"page":"19-27","source":"Crossref","is-referenced-by-count":7,"title":["Classification of persistent and long-standing persistent atrial fibrillation by means of surface electrocardiograms"],"prefix":"10.1515","volume":"61","author":[{"given":"Nuria","family":"Ortigosa","sequence":"first","affiliation":[{"name":"I.U. Matem\u00e1tica Pura y Aplicada, Universitat Polit\u00e8cnica de Val\u00e8ncia, Camino de Vera s\/n, 46022 Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carmen","family":"Fern\u00e1ndez","sequence":"additional","affiliation":[{"name":"Departament d\u2019An\u00e0lisi Matem\u00e0tica, Universitat de Val\u00e8ncia, E-46100 Burjassot, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antonio","family":"Galbis","sequence":"additional","affiliation":[{"name":"Departament d\u2019An\u00e0lisi Matem\u00e0tica, Universitat de Val\u00e8ncia, E-46100 Burjassot, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"\u00d3scar","family":"Cano","sequence":"additional","affiliation":[{"name":"Hospital Universitari i Polit\u00e8cnic La Fe, Servicio de Cardiolog\u00eda, Instituto de Investigaci\u00f3n Sanitaria La Fe, 46026 Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2015,5,12]]},"reference":[{"key":"2024051508023547368_j_bmt-2014-0154_ref_001_w2aab2b8c50b1b7b1ab2b1b1Aa","doi-asserted-by":"crossref","unstructured":"Alcaraz R, Rieta JJ. 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