{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T15:01:10Z","timestamp":1780498870615,"version":"3.54.1"},"reference-count":36,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T00:00:00Z","timestamp":1770681600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T00:00:00Z","timestamp":1770681600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Data on adverse events in patients developing atrial fibrillation (AF) after cardiac arrest (CA) are limited.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Retrospective analysis using the TriNetX network. Adults (\u2265\u200918 years) with CA (ICD\u201010\u2010CM I46) from 2014 to 2024 were divided into two cohorts: those with new\u2010onset AF (I48) within 2 days after CA and those without. Primary outcome was the 1\u2010year risk of a composite of all\u2010cause death, stroke, acute myocardial infarction (AMI), and recurrent CA. Secondary outcomes were the individual components. Cox regression provided hazard ratios (HRs) and 95% confidence intervals (CIs) before and after 1:1 propensity score matching (PSM). Sensitivity analyses stratified follow\u2010up into early (3\u201333 days) and late (34\u2013367 days) phases; subgroups included age, sex, hypertension, diabetes, heart failure, and shockable rhythms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We identified 1221 patients with post\u2013CA AF (mean age 65\u2009\u00b1\u200914.9 years; 33.8% female) and 149\u2009222 without AF (57.9\u2009\u00b1\u200917.6 years; 39.3% female). Before PSM, AF patients were older and had greater cardiovascular burden. After PSM post\u2013CA AF was associated with higher risk of the composite outcome (HR 1.25, 95% CI 1.13\u20131.38), AMI (HR 1.59, 95% CI 1.30\u20131.95), recurrent CA (HR 1.48, 95% CI 1.30\u20131.70), and a non\u2010significant trend toward increased stroke risk, which was greater during the early phase post\u2010CA. Female patients showed stronger association between post\u2013CA AF and stroke (p for interaction = 0.04).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Post\u2013CA AF is associated with an increased risk of adverse events, including AMI and recurrent CA. Stroke risk was higher during the early post\u2010resuscitation phase and among female patients.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jce.70288","type":"journal-article","created":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T07:51:26Z","timestamp":1770796286000},"page":"758-767","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Prognostic Impact of New\u2010Onset Atrial Fibrillation After Cardiac Arrest: Observations From a Federated Research Network"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-7655-8651","authenticated-orcid":false,"given":"Enrico","family":"Tartaglia","sequence":"first","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"},{"name":"Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences Italy University of Modena and Reggio Emilia, Policlinico di Modena Modena Italy"},{"name":"Clinical and Experimental Medicine PhD Program University of Modena and Reggio Emilia Modena Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2895-6234","authenticated-orcid":false,"given":"Tommaso","family":"Bucci","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"},{"name":"Internal, Vascular and Emergency Medicine\u2014Stroke Unit University of Perugia  Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2803-079X","authenticated-orcid":false,"given":"Amir","family":"Askarinejad","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michele","family":"Rossi","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"},{"name":"Department of Life, Health &amp; Environmental Sciences University of L'Aquila L'Aquila Italy"},{"name":"Internal Medicine and Nephrology Division ASL1 Avezzano\u2010Sulmona\u2010L'Aquila, San Salvatore Hospital L'Aquila Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1257-1428","authenticated-orcid":false,"given":"Muath","family":"Alobaida","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"},{"name":"Department of Basic Science, Prince Sultan Bin Abdulaziz College for Emergency Medical Services King Saud University Riyadh Saudi Arabia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2147-0995","authenticated-orcid":false,"given":"Steven Ho Man","family":"Lam","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mert","family":"Kaskal","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"},{"name":"Department of Pharmacology School of Medicine, Marmara University Istanbul Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea Galeazzo","family":"Rigutini","sequence":"additional","affiliation":[{"name":"Liverpool Centre for Cardiovascular Science at University of Liverpool, Liverpool John Moores University and Liverpool and Heart and Chest Hospital Liverpool UK"},{"name":"Internal, Vascular and Emergency Medicine\u2014Stroke Unit University of Perugia  Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shir Lynn","family":"Lim","sequence":"additional","affiliation":[{"name":"Department of Cardiology National University Heart Centre Singapore  Singapore"},{"name":"Department of Medicine National University of Singapore  Singapore"},{"name":"Pre\u2010hospital Emergency and Research Centre Health Services and Systems Research, Duke\u2010NUS Medical School  Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe","family":"Boriani","sequence":"additional","affiliation":[{"name":"Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences Italy University of Modena and Reggio Emilia, Policlinico di Modena Modena Italy"},{"name":"Clinical and Experimental Medicine PhD Program University of Modena and Reggio Emilia Modena Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7566-1626","authenticated-orcid":false,"given":"Gregory Y. 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