ICU Diagnoses Associated With Increased Early ED Downgrades by a Novel Emergency Critical Care Program

ICU Diagnoses Associated With Increased Early ED Downgrades by a Novel Emergency Critical Care Program

Authors: Gupta PB, Levin NM, Gordon AJ, Htet NN, Lee JE, Wilson JG, Mitarai T
Journal: American Journal of Emergency Medicine, June 2026

Conclusions:

  • An ED-based Emergency Critical Care Program (ECCP) significantly increased the number of patients initially admitted to the MICU who could be safely downgraded to a non-ICU service within six hours.

  • The greatest benefit was seen in patients admitted with renal, respiratory, and sepsis-related diagnoses, suggesting these conditions may be particularly responsive to continued intensivist-level treatment and reassessment in the ED.

  • Early downgrades were not associated with increased mortality or transfer back to the MICU within 24 hours.

  • Practical takeaway: dedicated longitudinal critical care in the ED may reduce unnecessary ICU utilization, particularly when patients improve rapidly after initial stabilization.

Practice Takeaways:

  • ICU admission decisions made early in an ED course are not always final; some patients improve enough after several hours of treatment to safely avoid an ICU bed.

  • Patients with noninvasive ventilation-responsive respiratory failure, rapidly improving sepsis physiology, or reversible renal/metabolic abnormalities may be especially appropriate for structured reassessment.

  • A dedicated ED critical care physician may improve ICU stewardship by providing continuity after initial resuscitation rather than allowing patients to remain passively boarded under an ICU admission order.

  • These findings should not be interpreted as support for routine downgrading without appropriate staffing and monitoring—the intervention depended on continued intensivist-level care in the ED.

  • Because this was a single-center observational study, the effect may depend heavily on local staffing, ED critical care resources, and availability of monitored non-ICU beds.

Results:

  • Population: 1,882 adult ED patients initially admitted to the MICU or ECC service.

  • Mean age was 63 years; 53.2% were male.

  • The ECCP was associated with a 19.0% absolute increase in severity-adjusted early ED downgrades compared with changes during non-ECCP hours:

    • 95% CI: 13.0%–25.0%

  • Significant increases by diagnostic category:

    • Renal: +43.0% (95% CI 7.4%–78.5%)

    • Respiratory: +22.9% (95% CI 11.0%–34.9%)

    • Sepsis: +14.2% (95% CI 3.0%–25.5%)

  • There was no increase in mortality among downgraded patients.

  • There was also no increase in transfer to the MICU within 24 hours of downgrade.

Methods:

  • Single-center retrospective cohort study conducted from 2015 through 2019.

  • Included adults with initial admission orders to the MICU or Emergency Critical Care service.

  • The ECCP used an attending physician dual-boarded in Emergency Medicine and Critical Care Medicine to provide ongoing care for MICU patients remaining in the ED.

  • Program coverage was limited to 2 p.m. to midnight on weekdays.

  • “Early ED downgrade” was defined as placement of a transfer order to a non-ICU service within six hours of the initial critical care admission order while the patient remained in the ED.

  • A difference-in-differences analysis compared the change in downgrade rates from the preintervention period (2015–2017) to the intervention period (2017–2019), using non-ECCP hours as the comparison.

Gupta, P.B., Levin, N.M., Gordon, A.J., Htet, N.N., Lee, J.E., Wilson, J.G. and Mitarai, T., 2026. ICU diagnoses associated with increased early emergency department downgrades by a novel emergency critical care program. The American Journal of Emergency Medicine.

 

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