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Background <p>Critical care delivery in the emergency department (ED) may improve selected patient- and system-relevant outcomes. However, it remains unclear which organisational models to deliver critical care in the ED (CC-ED) have been implemented and what their outcome effects are.</p> Methods <p>We conducted a systematic review and meta-analysis including studies describing organisational approaches to deliver CC-ED. Delivery models were categorised and described qualitatively. For studies reporting comparable outcomes, random-effects meta-analysis was performed to estimate pooled effects and 95% confidence intervals. Outcomes included mortality, intensive care unit (ICU) admission rates, ICU length of stay (LOS), hospital LOS, and cost of care.</p> Results <p>Of 4,967 records, 67 were included into the qualitative assessment and 11 studies into the quantitative analysis, respectively. We identified five models to deliver CC-ED. These consisted of dedicated critical care areas in the ED (<i>n</i> = 49/67, 73.1%), placement of critical care staff in the ED (<i>n</i> = 5/67, 7.5%), deployment of critical care teams to the ED (<i>n</i> = 5/67, 7.5%), telemedical support of ED staff by critical care teams (<i>n</i> = 5/67, 7.5%), and implementation of protocols to accelerate ICU admission (<i>n</i> = 3/67, 4.5%). Mortality was not different versus usual care in any of the CC-ED models. CC-ED models had variable effects on the ICU admission rate, hospital and ICU LOS. Dedicated critical care areas in the ED were associated with lower ICU admission rates [OR 0.83 (0.76–0.91), <i>p</i> &lt; 0.001], and shorter hospital LOS [mean difference − 0.31 (-0.59 to -0.03) days, <i>p</i> = 0.03], but longer ICU LOS [mean difference 0.45 (0.31–0.6) days, <i>p</i> &lt; 0.001]. Reported cost of care did not differ between CC-ED and usual care.</p> Conclusions <p>We identified five different organisational model categories to deliver CC-ED. Dedicated critical care areas such as ED-ICUs was the model category most frequently published. Our quantitative meta-analysis suggests that compared with other CC-ED delivery models, dedicated critical care areas in the ED may reduce both ICU admission rates and hospital LOS of critically ill ED patients.</p>

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Critical care delivery models in emergency departments: a systematic review of the literature and meta-analysis of related outcome effects

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月14日

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  • Matthias Noitz,
  • Steven A. Ilko,
  • Martin W. Dünser,
  • Wilhelm Behringer,
  • Brigitte Wildner,
  • Harald Herkner

摘要

Background

Critical care delivery in the emergency department (ED) may improve selected patient- and system-relevant outcomes. However, it remains unclear which organisational models to deliver critical care in the ED (CC-ED) have been implemented and what their outcome effects are.

Methods

We conducted a systematic review and meta-analysis including studies describing organisational approaches to deliver CC-ED. Delivery models were categorised and described qualitatively. For studies reporting comparable outcomes, random-effects meta-analysis was performed to estimate pooled effects and 95% confidence intervals. Outcomes included mortality, intensive care unit (ICU) admission rates, ICU length of stay (LOS), hospital LOS, and cost of care.

Results

Of 4,967 records, 67 were included into the qualitative assessment and 11 studies into the quantitative analysis, respectively. We identified five models to deliver CC-ED. These consisted of dedicated critical care areas in the ED (n = 49/67, 73.1%), placement of critical care staff in the ED (n = 5/67, 7.5%), deployment of critical care teams to the ED (n = 5/67, 7.5%), telemedical support of ED staff by critical care teams (n = 5/67, 7.5%), and implementation of protocols to accelerate ICU admission (n = 3/67, 4.5%). Mortality was not different versus usual care in any of the CC-ED models. CC-ED models had variable effects on the ICU admission rate, hospital and ICU LOS. Dedicated critical care areas in the ED were associated with lower ICU admission rates [OR 0.83 (0.76–0.91), p < 0.001], and shorter hospital LOS [mean difference − 0.31 (-0.59 to -0.03) days, p = 0.03], but longer ICU LOS [mean difference 0.45 (0.31–0.6) days, p < 0.001]. Reported cost of care did not differ between CC-ED and usual care.

Conclusions

We identified five different organisational model categories to deliver CC-ED. Dedicated critical care areas such as ED-ICUs was the model category most frequently published. Our quantitative meta-analysis suggests that compared with other CC-ED delivery models, dedicated critical care areas in the ED may reduce both ICU admission rates and hospital LOS of critically ill ED patients.