Volume 10, Issue 6 p. 396-402
Review

Diagnostic accuracy and effectiveness of automated electronic sepsis alert systems: A systematic review

Anil N. Makam MD, MAS

Corresponding Author

Anil N. Makam MD, MAS

Division of General Internal Medicine, University Texas Southwestern Medical Center, Dallas, Texas

Address for correspondence and reprint requests: Anil N. Makam, MD, 5323 Harry Hines Blvd., Dallas, TX 75390-9169; Telephone: 214-648-3272; Fax: 314-648-3232; E-mail: [email protected]Search for more papers by this author
Oanh K. Nguyen MD, MAS

Oanh K. Nguyen MD, MAS

Division of General Internal Medicine, University Texas Southwestern Medical Center, Dallas, Texas

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Andrew D. Auerbach MD, MPH

Andrew D. Auerbach MD, MPH

Divsion of Hospital Medicine, University of California San Francisco, San Francisco, California

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First published: 11 March 2015
Citations: 55

Abstract

BACKGROUND

Although timely treatment of sepsis improves outcomes, delays in administering evidence-based therapies are common.

PURPOSE

To determine whether automated real-time electronic sepsis alerts can: (1) accurately identify sepsis and (2) improve process measures and outcomes.

DATA SOURCES

We systematically searched MEDLINE, Embase, The Cochrane Library, and Cumulative Index to Nursing and Allied Health Literature from database inception through June 27, 2014.

STUDY SELECTION

Included studies that empirically evaluated 1 or both of the prespecified objectives.

DATA EXTRACTION

Two independent reviewers extracted data and assessed the risk of bias. Diagnostic accuracy of sepsis identification was measured by sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and likelihood ratio (LR). Effectiveness was assessed by changes in sepsis care process measures and outcomes.

DATA SYNTHESIS

Of 1293 citations, 8 studies met inclusion criteria, 5 for the identification of sepsis (n = 35,423) and 5 for the effectiveness of sepsis alerts (n = 6894). Though definition of sepsis alert thresholds varied, most included systemic inflammatory response syndrome criteria ± evidence of shock. Diagnostic accuracy varied greatly, with PPV ranging from 20.5% to 53.8%, NPV 76.5% to 99.7%, LR+ 1.2 to 145.8, and LR− 0.06 to 0.86. There was modest evidence for improvement in process measures (ie, antibiotic escalation), but only among patients in non–critical care settings; there were no corresponding improvements in mortality or length of stay. Minimal data were reported on potential harms due to false positive alerts.

CONCLUSIONS

Automated sepsis alerts derived from electronic health data may improve care processes but tend to have poor PPV and do not improve mortality or length of stay. Journal of Hospital Medicine 2015;10:396–402. © 2015 Society of Hospital Medicine