Modified Sequential Organ Failure Assessment sepsis score in an emergency department setting: Retrospective

Nigel J Raymond1, Mai Nguyen2, Sandra Allmark3

  • 1Infection Service, Capital and Coast District Health Board, Wellington Hospital, Wellington, New Zealand.

Abstract

Insights

The modified Sequential Organ Failure Assessment (mSOFA) score effectively predicts mortality in emergency department (ED) sepsis patients. A negative mSOFA score demonstrated a high negative predictive value, indicating low 30-day mortality risk.

Area of Science:

  • Emergency Medicine
  • Critical Care Medicine
  • Clinical Scoring Systems

Background:

  • The Third International Consensus Definitions for Sepsis and Septic Shock proposed the Sequential Organ Failure Assessment (SOFA) score.
  • The utility of the SOFA score in the emergency department (ED) for sepsis management is not well-established.
  • Assessing novel scoring systems for sepsis prediction in the ED is crucial for timely intervention.

Purpose of the Study:

  • To evaluate the predictive ability of a modified SOFA (mSOFA) score for mortality in patients with probable sepsis in the ED.
  • To determine the negative predictive value of the mSOFA score in identifying low-risk sepsis patients.

Main Methods:

  • A retrospective study was conducted at an urban tertiary teaching hospital.
  • Data from July 2015 to June 2016 included patients with probable sepsis recorded in the ED Information System (EDIS).
  • A sample of patients had their clinical records manually reviewed to assign an mSOFA score and assess 30-day mortality.

Main Results:

  • Out of 474 probable sepsis patients, 228 were manually reviewed.
  • The mSOFA score was a significant predictor of mortality.
  • 30-day mortality was 25% for positive mSOFA scores versus 2.1% for negative scores (OR 15.2, P < 0.001), yielding a negative predictive value of 97.9%.

Conclusions:

  • The mSOFA score effectively differentiates sepsis patients into high and low mortality risk groups in the ED setting.
  • The high negative predictive value of the mSOFA score suggests practical utility for risk stratification.
  • Further prospective studies are required to validate these findings for routine ED use.

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