Evaluating NICE and Surviving Sepsis Guidelines in a 100,000-Patient Emergency Cohort

Article Impact Level: HIGH
Data Quality: STRONG
Summary of  The Lancet Respiratory Medicine  https://doi.org/10.1016/S2213-2600(26)00187-6 
Dr. Dr Chanu Rhee  et al.

Points

Harvard Medical School researchers analyzed electronic health record data from nearly 100,000 adult emergency department patients treated for suspected infection between 2015 and 2024.
High-risk patients with a NEWS2 aggregate score of seven or higher demonstrated increased mortality for every additional hour of delay in broad-spectrum antibiotic administration.
Bedside NEWS2 scoring successfully identified vulnerable, high-risk sepsis patients who lacked clinical septic shock but still suffered worse survival outcomes from delayed antimicrobial therapy.
Patients presenting with lower NEWS2 scores showed no significant association between earlier antibiotic treatment timing and improved clinical survival metrics across hospital outcomes.
Utilizing NEWS2 protocols enables emergency clinicians to prioritize immediate antibiotic delivery for high-risk individuals while safely extending diagnostic evaluation time for lower-risk patient cohorts.

Summary

Comparative clinical utility of the National Early Warning Score 2 (NEWS2) framework versus septic shock criteria for guiding antibiotic treatment urgency in patients with suspected infection. While timely administration of broad-spectrum antimicrobials remains essential to reduce sepsis mortality, noninfectious disease overlap frequently drives unnecessary antibiotic exposure. Led by Chanu Rhee and Michael Klompas at the Harvard Pilgrim Health Care Institute, the investigation sought to determine whether bedside NEWS2 scoring identifies patients whose survival depends on immediate antibiotic administration more effectively than septic shock stratification alone.

Analyzing electronic health record data, the observational study evaluated nearly 100,000 adult patients treated for suspected infection across nine U.S. emergency departments between 2015 and 2024. The investigation compared the U.K. National Institute for Health and Care Excellence (NICE) guidelines—which recommend a 1-hour antibiotic window for high-risk NEWS2 scores (aggregate score ≥7)—against Surviving Sepsis Campaign recommendations, which mandate treatment within 1 hour for septic shock and up to 3 hours for suspected sepsis without shock. Mortality risk was analyzed relative to hourly antibiotic administration delays.

Systematic analysis demonstrated that among high-risk patients with a NEWS2 score ≥7, each additional hour of delay in antibiotic administration was associated with increased mortality. Crucially, high-risk NEWS2 scores identified a substantial cohort of non-shock patients who nevertheless demonstrated increased mortality from treatment delays. Conversely, earlier antibiotic therapy showed no significant survival benefit among patients with lower NEWS2 scores (<7). The authors conclude that NEWS2 offers an objective framework superior to shock status alone for triaging antibiotic urgency in emergency care.

Link to the article: https://www.thelancet.com/journals/lanres/article/PIIS2213-2600(26)00187-6/abstract

References

Rhee, C., Singer, M., Pak, T. R., McKenna, C. S., Agan, A., DelloStritto, L., Shappell, C. N., Filbin, M. R., Dutta, S., Kadri, S. S., Septimus, E. J., & Klompas, M. (2026). NEWS2 versus shock status to stratify antibiotic urgency in patients with suspected sepsis: A retrospective, multicentre cohort study. The Lancet Respiratory Medicine, S2213260026001876. https://doi.org/10.1016/S2213-2600(26)00187-6