RT Journal Article T1 Efficiency of IL-6 in Early Prognosis and Follow-Up in Critically Ill Patients with Septic Shock A1 Gamarra Morales, Yenifer A1 Molina López, Jorge A1 Santiago Ruiz, Felipe Carlos A1 Herrera Quintana, Lourdes A1 Vázquez Lorente, Héctor A1 Gascón Luna, Félix A1 Planells, Elena AB Background/Objectives: The aim of this study was to investigate the response of interleukin-6 (IL-6) during the first few hours of a patient's stay in the Intensive Care Unit (ICU) in a sample of critically ill patients with septic shock, compared to healthy subjects as controls. Additionally, the study examined the association of IL-6 with morbidity and mortality in these patients, as well as its relationship with biomarkers such as lactic acid, C-reactive protein (CRP) and procalcitonin (PCT). Methods: This was a prospective analytical study involving 28 critically ill patients with septic shock, monitored from ICU admission through to their first three days of stay. Demographic data, comorbidities and clinical information, including IL-6 and severity scores, were recorded. Results: IL-6 levels were significantly higher in patients with septic shock compared to healthy subjects (p < 0.001) upon admission. IL-6 levels decreased by the third day of ICU stay (p < 0.005). An association between IL-6 and mortality was observed (areas under the curve 0.826, confidence interval (CI) 95% 0.659-0.994, p < 0.008). Significant correlations between IL-6 and lactic acid (p < 0.009 and p < 0.018) and partial thromboplastin time (p < 0.004 and p < 0.007) were found on the first and third days, respectively. IL-6 was also the correlated with an anion gap at admission to the ICU (p < 0.009). Conclusions: In conclusion, this study suggests that IL-6 could be a valuable marker for early sepsis follow-up in ICU patients, particularly during the first 72 h of hospitalization, providing important prognostic information in patients with septic shock. PB MDPI SN 2079-9721 (electrónico) YR 2024 FD 2024-11 LK https://hdl.handle.net/10272/25263 UL https://hdl.handle.net/10272/25263 LA eng NO Gamarra-Morales, Y., Molina-López, J., Santiago-Ruiz, F.-C., Herrera-Quintana, L., Vázquez-Lorente, H., Gascón-Luna, F., & Planells, E. (2024). Efficiency of IL-6 in Early Prognosis and Follow-Up in Critically Ill Patients with Septic Shock. In Diseases (Vol. 12, Issue 11, p. 298). MDPI AG. https://doi.org/10.3390/diseases12110298 NO REF. A-CTS-708-UGR20/European Regional Development Fund (ERDF) "a way of making Europe". Consejería de Transformación Económica, Industria, Conocimiento y Universidades de la Junta de Andalucía.Project FIS PI10/1993/Spanish Carlos III Health Institute DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026