{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T03:30:27Z","timestamp":1790739027661,"version":"4.1.0"},"reference-count":45,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T00:00:00Z","timestamp":1701043200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Arrhythmia"],"published-print":{"date-parts":[[2024,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Postoperative atrial fibrillation (POAF) is the most common arrhythmia following cardiac surgery (CS). It may occur between the 1st and the 4th postoperative day as acute POAF or between the 5th and the 30th as subacute (sPOAF). sPOAF is associated with higher thromboembolic risk, which consistently increase patients' morbidity. Neutrophil\u2010to\u2010lymphocyte ratio (NLR) is a low\u2010cost inflammatory index proposed as possible POAF predictor. Identification of patients' risk categories might lead to improved postoperative outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The aim was to assess the incidence of sPOAF and to identify possible predictors in patients performing cardiovascular rehabilitation (CR) after CS. A single\u2010center cohort study was performed on 737 post\u2010surgical patients admitted to CR on sinus rhythm. Continuous monitoring with 12\u2010lead ECG telemetry was performed. We evaluated the predictive role of anamnestic, clinical, and laboratory data, including baseline NLR.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Subacute POAF was documented in 170 cases (23.1%). At the multivariate analysis, age (OR 1.03; <jats:italic>p<\/jats:italic>\u2009=\u2009.001), mitral valve surgery (OR 1.77; <jats:italic>p<\/jats:italic>\u2009=\u2009.012), acute POAF (OR 2.97; <jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001), and NLR at baseline (OR 1.13; <jats:italic>p<\/jats:italic>\u2009=\u2009.042) were found to be independent predictive factors of sPOAF following heart surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>sPOAF is common after CS. Age, mitral valve procedures, acute POAF, and preoperative NLR were proved to increase sPOAF occurrence in CR. NLR is an affordable and reliable parameter which might be used to qualify the risk of arrhythmias at CR admission. Identification of new predictors of postoperative atrial fibrillation may allow to improve patients' prognosis.<\/jats:p><\/jats:sec>","DOI":"10.1002\/joa3.12956","type":"journal-article","created":{"date-parts":[[2023,11,27]],"date-time":"2023-11-27T20:24:39Z","timestamp":1701116679000},"page":"67-75","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Subacute postoperative atrial fibrillation after heart surgery: Incidence and predictive factors in cardiac rehabilitation"],"prefix":"10.1002","volume":"40","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-2348-826X","authenticated-orcid":false,"given":"Vincenzo","family":"Rizza","sequence":"first","affiliation":[{"name":"Vita\u2010Salute San Raffaele University  Milan Italy"},{"name":"Cardiac Rehabilitation Unit IRCCS San Raffaele Scientific Institute  Milan 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