Journal of intensive care · 2025
Treatment effect of intravenous high-dose selenium in sepsis phenotypes: a retrospective analysis of a large multicenter randomized controlled trial.
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Radke David I, Bogatsch Holger, Engel Christoph, Bloos Frank, Meybohm Patrick, Bauer Michael, Homayr Anna Lulu, Stoppe Christian, Elke Gunnar, Lindner Matthias, SepNet Critical Care Trials Group
Аннотация
BACKGROUND: Treatment effect of high-dose intravenous selenium remains controversial in patients with sepsis or septic shock. Here, we reanalyzed data from the randomized placebo-controlled trial of Sodium Selenite and Procalcitonin Guided Antimicrobial Therapy in Severe Sepsis (SISPCT) to reveal possible treatment differences according to established sepsis phenotypes.
METHODS: In this secondary data analysis of the SISPCT trial all 1089 patients of the original study were included. Patients were assigned to one of the four phenotypes by comparing patient variables with the Sepsis Endotyping in Emergency Care (SENECA) validation cohort. Survival analyses were performed using Kaplan-Meier and log-rank tests.
RESULTS: No robust effect of selenium on mortality and other outcome parameters could be determined in any sepsis phenotype. Phenotype frequencies were markedly different in our study cohort compared to previous reports (α: 2.2%, β: 6.3%, γ: 68.0%, δ: 23.4%). Differences in mortality between the respective phenotypes were not significant overall; however, 28-day mortality showed a lower mortality for the α- (20.8%) and β-phenotype (20.3%), followed by the γ- (27.1%), and δ-phenotype (28.5%).
CONCLUSIONS: Application of the four sepsis phenotypes to the SISPCT study cohort showed discrete but non-significant mortality differences within 28 days. However, beneficial treatment effects of high-dose intravenous selenium were still not detectable after categorizing the SISPCT study cohort according to four phenotype criteria.
METHODS: In this secondary data analysis of the SISPCT trial all 1089 patients of the original study were included. Patients were assigned to one of the four phenotypes by comparing patient variables with the Sepsis Endotyping in Emergency Care (SENECA) validation cohort. Survival analyses were performed using Kaplan-Meier and log-rank tests.
RESULTS: No robust effect of selenium on mortality and other outcome parameters could be determined in any sepsis phenotype. Phenotype frequencies were markedly different in our study cohort compared to previous reports (α: 2.2%, β: 6.3%, γ: 68.0%, δ: 23.4%). Differences in mortality between the respective phenotypes were not significant overall; however, 28-day mortality showed a lower mortality for the α- (20.8%) and β-phenotype (20.3%), followed by the γ- (27.1%), and δ-phenotype (28.5%).
CONCLUSIONS: Application of the four sepsis phenotypes to the SISPCT study cohort showed discrete but non-significant mortality differences within 28 days. However, beneficial treatment effects of high-dose intravenous selenium were still not detectable after categorizing the SISPCT study cohort according to four phenotype criteria.