{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T12:25:30Z","timestamp":1772022330265,"version":"3.50.1"},"reference-count":0,"publisher":"Knowledge E DMCC","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JTHC"],"abstract":"<jats:p>Background: Heart rate variability (HRV) is known to play a significant role in predicting poor prognosis after acute myocardial infarction. Nonetheless, its potential for predicting long-term adverse outcomes following revascularization procedures remains unclear. This study aims to elucidate this relationship.\r\nMethods: This prospective cohort study included 258 consecutive patients undergoing elective isolated coronary artery bypass grafting (CABG). All patients required ICU referral before hospital discharge. A 3-week cardiac rehabilitation program with 24-hour ECG Holter monitoring was planned for all patients. HRV was analyzed by computer and manually over-read. During a follow-up period ranging from 1 to 3 years, patients were contacted via phone to assess long-term outcomes, including death and major adverse cardiovascular events (MACE), such as myocardial infarction, reoperation, or brain stroke.\r\nResults: Out of 258 patients (177 males and 81 females) with an average age of 58.80\u00b19.60 years, 4.3% of patients died due to cardiovascular events, and 15.1% experienced long-term MACE. A comparison of HRV indicators between the non-surviving and surviving subgroups revealed significantly lower mean RR, mean standard deviation of normal-to-normal HRV interval (SDNN), and low and high-frequency values in the former group. However, when comparing HRV indicators between the subgroups with and without long-term MACE, no significant differences were observed. Cox proportional hazard analysis demonstrated that decreased HRV (SDNN) effectively predicted long-term mortality in patients who underwent CABG.\r\nConclusion: Lower postoperative HRV serves as a valuable predictor of long-term mortality after CABG in ICU patients, with reduced SDNN values particularly relevant for anticipating long-term adverse events.<\/jats:p>","DOI":"10.18502\/jthc.v19i4.17611","type":"journal-article","created":{"date-parts":[[2025,1,15]],"date-time":"2025-01-15T06:23:54Z","timestamp":1736922234000},"source":"Crossref","is-referenced-by-count":0,"title":["The Predictive Value of Heart Rate Variability for Long-Term Outcomes in Patients Undergoing Coronary Artery Bypass Grafting and ICU Referrals"],"prefix":"10.18502","author":[{"given":"Mohammad Javad","family":"Mehrabanian","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mehdi Dehghani","family":"Firoozabadi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Behrang","family":"Nooralishahi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Afarin","family":"Zamani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naser","family":"Kachoueian","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"7770","published-online":{"date-parts":[[2025,1,15]]},"container-title":["The Journal of Tehran University Heart Center"],"original-title":[],"link":[{"URL":"https:\/\/publish.kne-publishing.com\/index.php\/JTHC\/article\/download\/17611\/16393","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/publish.kne-publishing.com\/index.php\/JTHC\/article\/download\/17611\/16393","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T11:52:42Z","timestamp":1772020362000},"score":1,"resource":{"primary":{"URL":"https:\/\/publish.kne-publishing.com\/index.php\/JTHC\/article\/view\/17611"},"secondary":[{"URL":"https:\/\/jthc.tums.ac.ir\/index.php\/jthc\/article\/view\/2109","label":"UNIVERSITY"}]},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,1,15]]},"references-count":0,"URL":"https:\/\/doi.org\/10.18502\/jthc.v19i4.17611","relation":{},"ISSN":["2008-2371","1735-8620"],"issn-type":[{"value":"2008-2371","type":"electronic"},{"value":"1735-8620","type":"print"}],"subject":[],"published":{"date-parts":[[2025,1,15]]}}}