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Cardiopulmonary resuscitation, or CPR, is a life-saving emergency procedure performed when a person's heart has stopped beating or they are no longer breathing. The foundation of CPR is Basic Life Support (BLS), which focuses on the early recognition of cardiac arrest, the immediate start of high-quality chest compressions, and the timely use of an automated external defibrillator (AED).Assessing Responsiveness and Checking the Carotid PulseWhen approaching an unresponsive person, first ensure...
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Related Experiment Video

Updated: Oct 2, 2025

Setup and Execution Of the Blindfolded Code Training Exercise
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Improving In-Hospital Patient Rescue: What Are Studies on Early Warning Scores Missing? A Scoping Review.

Sarvie Esmaeilzadeh1, Conor M Lane2, Danielle J Gerberi3

  • 1Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN.

Critical Care Explorations
|February 28, 2022
PubMed
Summary

Early warning score (EWS) studies rarely detail hospital context, hindering adoption decisions. More information on hospital environments is needed for effective patient rescue implementation.

Keywords:
clinical decision rulesclinical deteriorationearly warning scorefailure to rescueimplementation science

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Area of Science:

  • Healthcare quality improvement
  • Clinical informatics
  • Patient safety

Background:

  • Patient rescue efforts are crucial for improving hospital mortality and intensive care unit utilization.
  • Hospital context, including technology, structure, and organizational behavior, significantly influences patient rescue effectiveness.
  • Early warning score (EWS) systems are increasingly promoted to predict patient deterioration and facilitate timely rescue.

Purpose of the Study:

  • To assess the extent to which studies on early warning score (EWS) interventions describe the hospital environment.
  • To identify critical details needed by hospital leaders for evaluating the real-world utility of EWSs.

Main Methods:

  • A systematic literature search was conducted in CINAHL, PubMed, and Scopus for EWS implementation research (2009-2021) in adult medical-surgical inpatients.
  • Studies involving pediatric, obstetric, psychiatric, prehospital, outpatient, step-down, or ICU patients were excluded.
  • Two independent investigators reviewed titles, abstracts, and full texts based on prespecified criteria.

Main Results:

  • Out of 1,434 initially screened studies, 21 met the inclusion criteria, detailing over 1.1 million patients across 54 hospitals.
  • While some studies reported on EWS response teams, patient demographics, and educational resources, most lacked crucial details on hospital context.
  • Key missing information included intensive care staffing, changes in bed utilization, implementation costs, workforce composition, team stability, and safety culture.

Conclusions:

  • Most publications on early warning score (EWS) implementation lack essential details about the hospital context.
  • This deficit hinders informed decision-making for hospital leaders considering EWS adoption and quality improvement.
  • Alternative strategies, such as peer networks and local implementation pilots, may be necessary for effective EWS integration.