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Predictive value of quick Sepsis-Related Organ Failure Scores following sepsis-related Medical Emergency Team calls: a retrospective cohort study

Department of General Medicine and Intensive Care, Monash Health, Melbourne, Victoria

Summary

We conducted a cohort study of adult ward patients who had a Medical Emergency Team (MET) call triggered by confirmed or suspected sepsis in an Australian tertiary centre to assess the predictive utility of systemic inflammatory response syndrome (SIRS) and quick Sepsis-Related Organ Failure Assessment (qSOFA) scores for 28-day mortality over a 12-month period. Sepsis was the causative aetiology in 970 MET calls for 646 patients with a mean age of 68 years and median Charlson Comorbidity score (CCS) of 3.0. Four hundred and seven (63%) patients had microbiological identification of a causative organism with 35 (9%) demonstrating multi–drug resistance. The 28-day mortality rate was 22%. Independent risk factors for 28-day mortality included age (incidence rate ratio [IRR] 1.038; P <0.001) and CCS (IRR 1.102; P <0.001). qSOFA positive patients had a three-fold risk of 28 day mortality compared to those who were negative (IRR 3.15; P=0.02). Both the SIRS and qSOFA score had poor sensitivity (86% versus 62%, respectively) for mortality as a sole diagnostic tool and should be investigated as part of a multiparameter panel within a large prospective study.

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