Cited by 159Sepsis Diagnosis and TreatmentHealthcare Technology and Patient MonitoringMachine Learning in Healthcare

Clinician perception of a machine learning–based early warning system designed to predict severe sepsis and septic shock

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Ginestra, Jennifer C., Giannini, Heather M., Schweickert, William D., Meadows, Laurie, Lynch, Michael J., Pavan, Kimberly, Chivers, Corey J., Draugelis, Michael +3 more·2019·Critical Care Medicine

Abstract

Objective: To assess clinician perceptions of a machine learning–based early warning system to predict severe sepsis and septic shock (Early Warning System 2.0). Design: Prospective observational study. Setting: Tertiary teaching hospital in Philadelphia, PA. Patients: Non-ICU admissions November–December 2016. Interventions: During a 6-week study period conducted 5 months after Early Warning System 2.0 alert implementation, nurses and providers were surveyed twice about their perceptions of the alert’s helpfulness and impact on care, first within 6 hours of the alert, and again 48 hours after the alert. Measurements and Main Results: For the 362 alerts triggered, 180 nurses (50% response rate) and 107 providers (30% response rate) completed the first survey. Of these, 43 nurses (24% response rate) and 44 providers (41% response rate) completed the second survey. Few (24% nurses, 13% providers) identified new clinical findings after responding to the alert. Perceptions of the presence of sepsis at the time of alert were discrepant between nurses (13%) and providers (40%). The majority of clinicians reported no change in perception of the patient’s risk for sepsis (55% nurses, 62% providers). A third of nurses (30%) but few providers (9%) reported the alert changed management. Almost half of nurses (42%) but less than a fifth of providers (16%) found the alert helpful at 6 hours. Conclusions: In general, clinical perceptions of Early Warning System 2.0 were poor. Nurses and providers differed in their perceptions of sepsis and alert benefits. These findings highlight the challenges of achieving acceptance of predictive and machine learning–based sepsis alerts.

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  • All 9 papers reported decreased mortality, be that all-cause, sepsis-related or both, although this was statistically significant only for 5 studies.

    “All 9 papers34,44,46,50,52,58–61 reported decreased mortality, be that all-cause, sepsis-related or both, although this was statistically significant only for 5 studies”

    From Deployment of machine learning algorithms to predict sepsis: systematic review and application of the SALIENT clinical AI implementation framework (2023) · cites this paper as [44]

    The Introduction reports a nonsignificant trend toward reduced mortality for the authors’ earlier EWS 1.0 system, but attributes that finding to a previous study. This paper surveys clinician perceptions of EWS 2.0; its Results do not report a mortality decrease for the system studied here. It also does not establish the sentence’s count of nine papers or five statistically significant findings. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Many models have been developed to improve timely identification of sepsis, but their lack of adoption has led to an implementation gap in early warning systems for sepsis.

    “Many models have been developed to improve timely identification of sepsis,4,5,6,7,8,9 but their lack of adoption has led to an implementation gap in early warning systems for sepsis.10,11”

    From External validation of a widely implemented proprietary sepsis prediction model in hospitalized patients (2021) · cites this paper as [11]

    The Introduction (page not available in our copy) says clinician acceptance is crucial and reports that only a minority of providers found the authors’ earlier sepsis alert helpful. The Discussion > Challenges describes poor acceptance of their newer system. These passages support an adoption barrier, but do not establish that widespread lack of adoption has caused an implementation gap across sepsis early warning systems. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Some implementation studies have found that AI-based alerts are relatively more salient to nurses than physicians in this regard.

    “Some implementation studies have found that AI-based alerts are relatively more salient to nurses than physicians in this regard.79”
  • It has been difficult for predictive CDSSs to achieve impactful adoption.

    “It has been difficult for predictive CDSSs to achieve impactful adoption [10,13,14].”
  • The same previous studies found that false positives from other nonsepsis etiologies could increase alarm fatigue.

    “They also found that false positives from other nonsepsis etiologies could increase alarm fatigue.”

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Authors
Ginestra, J. C., Giannini, H. M., Schweickert, W. D., Meadows, L., Lynch, M. J., Pavan, K., Chivers, C. J., Draugelis, M., Donnelly, P. J., Fuchs, B. D., & Umscheid, C. A.
Affiliations
  • Hospital of the University of Pennsylvania (US)
  • University of Pennsylvania Health System (US)
  • Penn Presbyterian Medical Center (US)
  • Pennsylvania Hospital (US)
Venue
Critical Care Medicine
Published
2019-11
Volume
47
Issue
11
Pages
1477-1484
ISSN
0090-3493 (ISSN-L)
OpenAlex
W2945543078
Cited by
159
References
36
Citations by year
2026: 11 · 2025: 28 · 2024: 23 · 2023: 30 · 2022: 29 · 2021: 19 · 2020: 15 · 2019: 4
FWCI
12.75
Type
journal article
Language
en
Open access
Locations
  • Critical Care Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000003)
  • National Center for Research Resources (UL1RR024134)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
  • Health Sciences › Medicine › Surgery › Healthcare Technology and Patient Monitoring
  • Physical Sciences › Computer Science › Artificial Intelligence › Machine Learning in Healthcare
Keywords
sepsis, septic shock, machine learning, clinical decision support, clinician perceptions, nurses, non-ICU patients, alert response
MeSH terms
Machine Learning, Algorithms, Attitude of Health Personnel, Diagnosis, Computer-Assisted, Hospitals, Teaching, Humans, Medical Staff, Hospital, Nursing Staff, Hospital, Practice Patterns, Physicians', Prospective Studies, Shock, Septic, Sepsis, Decision Support Systems, Clinical, Practice Patterns, Nurses', Electronic Health Records, Text Messaging

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