Derivation of a screen to identify severe sepsis and septic shock in the ED-BOMBARD vs. SIRS and qSOFA - 25/06/19
The BOMBARD Study Group
Abstract |
Study objective |
To predict severe sepsis/septic shock in ED patients.
Methods |
We conducted a retrospective case-control study of patients ≥18 admitted to two urban hospitals with a combined ED census of 162,000.
Study cases included patients with severe sepsis/septic shock admitted via the ED. Controls comprised admissions without severe sepsis/septic shock. Using multivariate logistic regression, a prediction rule was constructed. The model's AUROC was internally validated using 1000 bootstrap samples.
Results |
143 study and 286 control patients were evaluated. Features predictive of severe sepsis/septic shock included: SBP ≤ 110 mm Hg, shock index/SI ≥ 0.86, abnormal mental status or GCS < 15, respirations ≥ 22, temperature ≥ 38C, assisted living facility residency, disabled immunity.
Two points were assigned to SI and temperature with other features assigned one point (mnemonic: BOMBARD). BOMBARD was superior to SIRS criteria (AUROC 0.860 vs. 0.798, 0.062 difference, 95% CI 0.022–0.102) and qSOFA scores (0.860 vs. 0.742, 0.118 difference, 95% CI 0.081–0.155) at predicting severe sepsis/septic shock. A BOMBARD score ≥ 3 was more sensitive than SIRS ≥ 2 (74.8% vs. 49%, 25.9% difference, 95% CI 18.7–33.1) and qSOFA ≥ 2 (74.8% vs. 33.6%, 41.2% difference, 95% CI 33.2–49.3) at predicting severe sepsis/septic shock. A BOMBARD score ≥ 3 was superior to SIRS ≥ 2 (76% vs. 45%, 32% difference, 95% CI 10–50) and qSOFA ≥ 2 (76% vs. 29%, 47% difference, 95% CI 25–63) at predicting sepsis mortality.
Conclusion |
BOMBARD was more accurate than SIRS and qSOFA at predicting severe sepsis/septic shock and sepsis mortality.
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| ☆ | Meetings: None. |
Vol 37 - N° 7
P. 1260-1267 - juillet 2019 Retour au numéro
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