The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock

Abstract Purpose Sepsis is an infection-induced disorder triggering a life-threatening response in the host. Acute kidney injury (AKI) is a prevalent and serious consequence in septic patients with high rates of morbidity and mortality. The systemic immune-inflammation index (SII) has emerged as a p...

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Main Authors: Ibrahim EL-Zoghby, Ramadan Ahmed, Moataz Fatthy, Mohamed Ibrahim, M. Hamed
Format: Article
Language:English
Published: Springer 2025-05-01
Series:Egyptian Journal of Critical Care Medicine
Subjects:
Online Access:https://doi.org/10.1007/s44349-025-00018-0
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author Ibrahim EL-Zoghby
Ramadan Ahmed
Moataz Fatthy
Mohamed Ibrahim
M. Hamed
author_facet Ibrahim EL-Zoghby
Ramadan Ahmed
Moataz Fatthy
Mohamed Ibrahim
M. Hamed
author_sort Ibrahim EL-Zoghby
collection DOAJ
description Abstract Purpose Sepsis is an infection-induced disorder triggering a life-threatening response in the host. Acute kidney injury (AKI) is a prevalent and serious consequence in septic patients with high rates of morbidity and mortality. The systemic immune-inflammation index (SII) has emerged as a prognostic biomarker in various conditions, but its role in predicting AKI remains unexamined. This study sought to assess the efficacy of SII in predicting AKI and in-hospital mortality in septic patients.. Methods The study involved 120 patients diagnosed with sepsis and septic shock, registered at the Critical Care Medicine Department at Cairo University from November 2023 to July 2024. Sepsis diagnosis was determined according to the third consensus definition of sepsis (Sepsis-3). Upon admission, patients were evaluated through a full medical history, physical examination, and laboratory tests including complete blood count for SII calculation, blood urea nitrogen, and serum creatinine at the time of admission and after 48 h. Results The mean age of the enrolled patients in the study was 66.75 ± 14.84 years. AKI occurred in 42.5% of patients, and the mortality rate was 33.3%. The mean SII value was 2017.38. SII significantly predicted the development of AKI, establishing a cutoff value of > 1602, sensitivity of 84.3%, and specificity of 89.9%. Additionally, SII significantly predicted in-hospital mortality, with a cutoff value of > 1801.411, sensitivity of 95%, and specificity of 90%. Conclusion SII is a potentially valuable, cost-effective, and readily available biomarker that can significantly predict the occurrence of AKI and in-hospital mortality in septic patients.
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spelling doaj-art-13c8bf6c332b45d696043f656796770e2025-08-20T03:10:14ZengSpringerEgyptian Journal of Critical Care Medicine2090-73032090-92092025-05-011211710.1007/s44349-025-00018-0The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shockIbrahim EL-Zoghby0Ramadan Ahmed1Moataz Fatthy2Mohamed Ibrahim3M. Hamed4Critical Care Department, Kasr Al-Ainy Hospital of Cairo UniversityCritical Care Department, Kasr Al-Ainy Hospital of Cairo UniversityInternal Medicine Department, Kasr Al-Ainy Hospital of Cairo UniversityClinical and Chemical Pathology Department, Kasr Al-Ainy Hospital of Cairo UniversityCritical Care Department, Kasr Al-Ainy Hospital of Cairo UniversityAbstract Purpose Sepsis is an infection-induced disorder triggering a life-threatening response in the host. Acute kidney injury (AKI) is a prevalent and serious consequence in septic patients with high rates of morbidity and mortality. The systemic immune-inflammation index (SII) has emerged as a prognostic biomarker in various conditions, but its role in predicting AKI remains unexamined. This study sought to assess the efficacy of SII in predicting AKI and in-hospital mortality in septic patients.. Methods The study involved 120 patients diagnosed with sepsis and septic shock, registered at the Critical Care Medicine Department at Cairo University from November 2023 to July 2024. Sepsis diagnosis was determined according to the third consensus definition of sepsis (Sepsis-3). Upon admission, patients were evaluated through a full medical history, physical examination, and laboratory tests including complete blood count for SII calculation, blood urea nitrogen, and serum creatinine at the time of admission and after 48 h. Results The mean age of the enrolled patients in the study was 66.75 ± 14.84 years. AKI occurred in 42.5% of patients, and the mortality rate was 33.3%. The mean SII value was 2017.38. SII significantly predicted the development of AKI, establishing a cutoff value of > 1602, sensitivity of 84.3%, and specificity of 89.9%. Additionally, SII significantly predicted in-hospital mortality, with a cutoff value of > 1801.411, sensitivity of 95%, and specificity of 90%. Conclusion SII is a potentially valuable, cost-effective, and readily available biomarker that can significantly predict the occurrence of AKI and in-hospital mortality in septic patients.https://doi.org/10.1007/s44349-025-00018-0Systemic immune-inflammation index (SII)SepsisSeptic shockAcute kidney injury (AKI)Mortality
spellingShingle Ibrahim EL-Zoghby
Ramadan Ahmed
Moataz Fatthy
Mohamed Ibrahim
M. Hamed
The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock
Egyptian Journal of Critical Care Medicine
Systemic immune-inflammation index (SII)
Sepsis
Septic shock
Acute kidney injury (AKI)
Mortality
title The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock
title_full The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock
title_fullStr The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock
title_full_unstemmed The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock
title_short The systemic immune-inflammation index (SII) as a predictor of acute kidney injury and in-hospital mortality in patients with sepsis and septic shock
title_sort systemic immune inflammation index sii as a predictor of acute kidney injury and in hospital mortality in patients with sepsis and septic shock
topic Systemic immune-inflammation index (SII)
Sepsis
Septic shock
Acute kidney injury (AKI)
Mortality
url https://doi.org/10.1007/s44349-025-00018-0
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