ICU Readmission Risk Assessment and Management

Summary

Unplanned readmission to intensive care units (ICUs) represents a significant marker of patient instability, resource utilisation and care quality. Patients discharged from the ICU often arrive at a tipping point between recovery and deterioration, driven by factors that include residual organ dysfunction, comorbidities and care transitions. Accurate risk assessment combines clinical judgement with structured scoring systems and emerging data‐driven algorithms to stratify patients by likelihood of readmission or early post‐discharge mortality. Management strategies span from enhanced monitoring on wards and step‐down units to critical care outreach teams and tailored discharge planning. Globally, ICU readmission rates of 4–15% incur longer hospital stays, elevated mortality and cost burdens. Recent advances focus on refining predictive accuracy through physiological scores, electronic health record integration and machine learning, while parallel efforts explore the impact of discharge timing, handover practices and post‐ICU support to mitigate avoidable readmissions and optimise patient trajectories.

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ICU Readmission Risk Assessment and Management publication trend

The graph below shows the total number of articles in icu readmission risk assessment and management across all publications each year (not limited to Nature Index journals).

Technical terms

AUC-ROC: Area under the receiver operating characteristic curve, a measure of a model’s ability to distinguish between outcomes.

Negative predictive value (NPV): Probability that patients predicted not to experience an event truly remain event-free.

National Early Warning Score (NEWS): Composite physiological scoring system to detect patient deterioration based on vital signs.

Modified Early Warning Score (MEWS): Adapted early warning system assigning points to physiological parameters to predict adverse outcomes.

References

  1. Machine learning prediction of unexpected readmission or death after discharge from intensive care: A retrospective cohort study. Journal of Clinical Anesthesia (2024).
  2. Prognostic value of National Early Warning Score and Modified Early Warning Score on intensive care unit readmission and mortality: A prospective observational study. Frontiers in Medicine (2022).
  3. A meta-analysis to derive literature-based benchmarks for readmission and hospital mortality after patient discharge from intensive care. Critical Care (2014).

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