Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure

Abstract Background The systemic immune-inflammation index (SII), a novel marker derived from the combination of platelet, neutrophil, and lymphocyte counts, has been linked to unfavorable clinical outcomes in various malignancies and inflammatory conditions. This study aims to assess the associatio...

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Main Authors: Murat Özmen, Onur Altınkaya, İbrahim Saraç, Selim Aydemir, Sidar Şiyar Aydın, Faruk Aydınyılmaz, Emrah Aksakal
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Cardiovascular Disorders
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Online Access:https://doi.org/10.1186/s12872-025-05053-4
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author Murat Özmen
Onur Altınkaya
İbrahim Saraç
Selim Aydemir
Sidar Şiyar Aydın
Faruk Aydınyılmaz
Emrah Aksakal
author_facet Murat Özmen
Onur Altınkaya
İbrahim Saraç
Selim Aydemir
Sidar Şiyar Aydın
Faruk Aydınyılmaz
Emrah Aksakal
author_sort Murat Özmen
collection DOAJ
description Abstract Background The systemic immune-inflammation index (SII), a novel marker derived from the combination of platelet, neutrophil, and lymphocyte counts, has been linked to unfavorable clinical outcomes in various malignancies and inflammatory conditions. This study aims to assess the association between SII and disease prognosis in patients with heart failure with reduced ejection fraction (HFrEF). Methods A total of 521 patients (72% male; mean age: 67 ± 13 years) diagnosed with HFrEF were retrospectively analyzed. Clinical, demographic, laboratory, and echocardiographic data were collected. SII scores were calculated for all patients, and their prognostic significance and clinical outcomes were evaluated. Results 521 patients were analyzed. According to current findings, all-cause mortality occurred in 87 patient during the follow-up period. The mean SII in the mortality group was higher than in the survivors and was found to be statistically significant. (878.57 vs. 643.65; p = 0.003, respectively) In the multivariable regression model SII was found to be an independent risk factor for mortality. (p = 0.031) The AUC of SII for mortality prediction was 0.602 (95% CI = 0.531–0.673), the cut-off value was 729, and the sensitivity and specificity were 59.3% and 59.6% (p = 0.003). Conclusion This study demonstrates a significant association between SII and both survival and prognosis in patients with HFrEF. Notably, the SII index was found to be an independent predictor of mortality in this patient population.
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spelling doaj-art-79fe5e8171fb4e05b6ae04e805ffa2cb2025-08-20T04:01:42ZengBMCBMC Cardiovascular Disorders1471-22612025-07-012511910.1186/s12872-025-05053-4Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failureMurat Özmen0Onur Altınkaya1İbrahim Saraç2Selim Aydemir3Sidar Şiyar Aydın4Faruk Aydınyılmaz5Emrah Aksakal6Department of Cardiology, University of Health Sciences, Erzurum Bolge Training and Research HospitalDepartment of Cardiology, University of Health Sciences, Erzurum Bolge Training and Research HospitalDepartment of Cardiology, Ataturk UniversityDepartment of Cardiology, University of Health Sciences, Erzurum Bolge Training and Research HospitalDepartment of Cardiology, Ataturk UniversityDepartment of Cardiology, University of Health Sciences, Erzurum Bolge Training and Research HospitalDepartment of Cardiology, University of Health Sciences, Erzurum Bolge Training and Research HospitalAbstract Background The systemic immune-inflammation index (SII), a novel marker derived from the combination of platelet, neutrophil, and lymphocyte counts, has been linked to unfavorable clinical outcomes in various malignancies and inflammatory conditions. This study aims to assess the association between SII and disease prognosis in patients with heart failure with reduced ejection fraction (HFrEF). Methods A total of 521 patients (72% male; mean age: 67 ± 13 years) diagnosed with HFrEF were retrospectively analyzed. Clinical, demographic, laboratory, and echocardiographic data were collected. SII scores were calculated for all patients, and their prognostic significance and clinical outcomes were evaluated. Results 521 patients were analyzed. According to current findings, all-cause mortality occurred in 87 patient during the follow-up period. The mean SII in the mortality group was higher than in the survivors and was found to be statistically significant. (878.57 vs. 643.65; p = 0.003, respectively) In the multivariable regression model SII was found to be an independent risk factor for mortality. (p = 0.031) The AUC of SII for mortality prediction was 0.602 (95% CI = 0.531–0.673), the cut-off value was 729, and the sensitivity and specificity were 59.3% and 59.6% (p = 0.003). Conclusion This study demonstrates a significant association between SII and both survival and prognosis in patients with HFrEF. Notably, the SII index was found to be an independent predictor of mortality in this patient population.https://doi.org/10.1186/s12872-025-05053-4Systemic immune-inflammation indexHeart failureInflammatory markers
spellingShingle Murat Özmen
Onur Altınkaya
İbrahim Saraç
Selim Aydemir
Sidar Şiyar Aydın
Faruk Aydınyılmaz
Emrah Aksakal
Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
BMC Cardiovascular Disorders
Systemic immune-inflammation index
Heart failure
Inflammatory markers
title Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
title_full Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
title_fullStr Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
title_full_unstemmed Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
title_short Prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
title_sort prognostic impact of systemic immune inflammatory index in patients with reduced ejection fraction heart failure
topic Systemic immune-inflammation index
Heart failure
Inflammatory markers
url https://doi.org/10.1186/s12872-025-05053-4
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AT selimaydemir prognosticimpactofsystemicimmuneinflammatoryindexinpatientswithreducedejectionfractionheartfailure
AT sidarsiyaraydın prognosticimpactofsystemicimmuneinflammatoryindexinpatientswithreducedejectionfractionheartfailure
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