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Treatment of patients with sepsis in a closed intensive care unit is associated with improved survival: a nationwide observational study in Japan.
J Intensive Care. 2018;6:57
Authors: Ogura T, Nakamura Y, Takahashi K, Nishida K, Kobashi D, Matsui S
Abstract
Background: The aim of this study is to investigate the association between treatment in a closed ICU and survival at discharge in patients with sepsis.
Methods: This is a post hoc analysis utilizing data from the Japan Septic Disseminated Intravascular Coagulation study, including data from patients with sepsis from 2011 to 2013. Multiple logistic regression analysis was used to estimate the association between ICU policy and survival at discharge, and propensity score matching analysis was performed including the same covariates as a sensitivity analysis. Multiple linear regression analysis for the length of ICU stay in surviving patients was also performed with adjustments for the same covariates.
Results: Two thousand four hundred ninety-five patients were analyzed. The median Acute Physiology and Chronic Health Evaluation (APACHE) II score was 22 [17-29], the median Sequential Organ Failure Assessment (SOFA) score was 9 [7-12], and the overall mortality was 33%. There were 979 patients treated in 17 open ICUs and 1516 patients in 18 closed ICUs. In comparison, the APACHE II score and SOFA scores were significantly higher in patients in closed ICUs (closed vs open = 23 [18-29] vs 21 [16-28]; p < .001, 9 [7-13] vs 9 [6-12]; p = 0.004). There was no difference in the unadjusted mortality (closed vs open; 33.1% vs 33.2%), but in multiple logistic regression analysis, treatment in a closed ICU is significantly associated with survival at discharge (odds ratio = 1.59, 95% CI [1.276-1.827], p = .001). The sensitivity analysis (702 pairs of the matching) showed a significantly higher survival rate in the closed ICU (71.8% vs 65.2%, p = 0.011). The length of ICU stay of patients in closed ICUs was significantly shorter (20% less).
Conclusion: This Japanese nationwide analysis of patients with sepsis shows a significant association between treatment in a closed ICU and survival at discharge, and a 20% decrease in ICU stay.
PMID: 30202529 [PubMed]