{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:32:00Z","timestamp":1760146320197,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2024,10,24]],"date-time":"2024-10-24T00:00:00Z","timestamp":1729728000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Institute of Cardiology, Warsaw, Poland","award":["2A.26\/V\/13"],"award-info":[{"award-number":["2A.26\/V\/13"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: Post-infarction heart failure with reduced ejection fraction (HFrEF) patients often face persistent risks of sudden cardiac arrest leading to sudden cardiac death. While implanting a cardioverter-defibrillator (ICD) can enhance prognosis, complications and costs limit its widespread use. Current patient qualification criteria, relying on imperfect parameters, require refinement. The impairment of the cardiac adrenergic system in heart failure is associated with ventricular arrhythmias. The goal of the study was to assess the utility of cardiac adrenergic system scintigraphy in qualifying patients for ICD placement. Methods: In this prospective study of 85 post-infarction HFrEF patients at a single center, clinical assessments, laboratory tests, echocardiography, [123I]MIBG scintigraphy, and ICD implantation were performed. Scintigraphy involved planar chest images and evaluating the heart-to-mediastinum ratio (H\/M) and washout rate (WO). SPECT imaging assessed [123I]MIBG uptake in 17 left ventricular segments to calculate the summed difference score (SDS). Results: During a median of 4-year follow-up, 22% of patients experienced appropriate ICD interventions, and 25% of patients died or underwent heart transplantation. The mean values of analyzed parameters did not significantly differ between groups. In the univariate analysis, younger age and moderately impaired left ventricular ejection fraction (LVEF) were correlated with more frequent ICD interventions. In comparison, older age and elevated NT-proBNP levels were associated with death or heart transplantation. Additionally, the univariate analysis identified SDS-15\u2032 as a prognostic factor for death\/heart transplant. The multivariate analysis identified predictors for ICD interventions, including younger age, an EF of 30% or greater, and a larger left ventricular end-diastolic diameter. In contrast, older age and an LVEF of less than 25% were significant predictors of death or heart transplantation. Conclusions: Scintigraphic parameters did not effectively predict ICD interventions or death\/heart transplantation, though the summed difference score demonstrated potential as a prognostic factor. Younger age with moderately impaired EF correlated with frequent ICD interventions, while in older age, EF &lt; 25% predicted death or transplantation. Further investigation is needed for patients with borderline EF values.<\/jats:p>","DOI":"10.3390\/jcm13216378","type":"journal-article","created":{"date-parts":[[2024,10,24]],"date-time":"2024-10-24T09:11:47Z","timestamp":1729761107000},"page":"6378","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["The Utility of Baseline Characteristics and [123I]MIBG Cardiac Adrenergic System Scintigraphy in Qualifying Patients with Post-Infarction Heart Failure for Implantable Cardioverter-Defibrillator (ICD) Placement"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5047-121X","authenticated-orcid":false,"given":"Anna","family":"Teresi\u0144ska","sequence":"first","affiliation":[{"name":"Department of Nuclear Medicine, Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9104-7661","authenticated-orcid":false,"given":"Aneta","family":"Fronczak-Jakubczyk","sequence":"additional","affiliation":[{"name":"Department of Arrhythmia, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6781-8198","authenticated-orcid":false,"given":"Olgierd","family":"Wo\u017aniak","sequence":"additional","affiliation":[{"name":"Department of Congenital Heart Diseases, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aleksander","family":"Maci\u0105g","sequence":"additional","affiliation":[{"name":"Department of Arrhythmia, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaros\u0142aw","family":"Jezierski","sequence":"additional","affiliation":[{"name":"Department of Arrhythmia, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5870-6087","authenticated-orcid":false,"given":"Alicja","family":"Cicha-Miko\u0142ajczyk","sequence":"additional","affiliation":[{"name":"Department of Epidemiology, Cardiovascular Diseases Prevention and Health Promotion, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Piotr","family":"Hoffman","sequence":"additional","affiliation":[{"name":"Department of Congenital Heart Diseases, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"El\u017cbieta Katarzyna","family":"Biernacka","sequence":"additional","affiliation":[{"name":"Department of Congenital Heart Diseases, National Institute of Cardiology, 04-628 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,10,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3272","DOI":"10.1093\/cvr\/cvac013","article-title":"Global burden of heart failure: A comprehensive and updated review of epidemiology","volume":"118","author":"Savarese","year":"2023","journal-title":"Cardiovasc. 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