Acute cardiac care & resuscitation

External validation of rules for termination of resuscitation in in-hospital cardiac arrest

ResuscitationPublished

  • Observational study of a prospectively collected in-hospital cardiac arrest cohort
  • external validation
  • years 2012-2024
  • American Heart Association Get With The Guidelines-Resuscitation registry
  • Hypothesis formulated prior to analysis
+4 more
  • external validation
  • years 2012-2024
  • American Heart Association Get With The Guidelines-Resuscitation registry
  • Hypothesis formulated prior to analysis

Authors' conclusion

In this large American cohort, previously derived termination rules for in-hospital cardiac arrest demonstrated either limited applicability or unacceptable error rates. Even the best-performing Scandinavian rule identified few patients for early termination and would have led to premature cessation in ∼5% of survivors. These findings underscore the need for further refinement of termination rules before clinical adoption in the United States.

Study context

Population
Adult patients (≥18 years) who suffered in-hospital cardiac arrestmet inclusion criteria, of 646,794 patients, across 703 hospitals
Participants
359,686 patients
Exposure
Meeting a previously described termination of resuscitation rule
Outcome
Survival to hospital discharge
Follow-up
Hospital discharge

Main finding

As reported in the abstract

Overall survival to discharge

23.1%

Survived to discharge, of patients meeting Rule 1 criteria

5.1%

Observational data: associations, not effects.

Further findings

Positive rate (patients meeting Rule criteria), Rule 1

Positive rate, Rule 1
1.7%
Achieved return of spontaneous circulation, of patients meeting Rule 1 criteria
32.9%

Resuscitation time potentially avoided, Rule 1

Median per patient meeting Rule 1 criteria
11 min
Per 100 events
∼18 min

Positive rates across hospitals

Range
0% to 11.9

Other termination rules

Other termination rules demonstrated either very low average positive rates (<3%) or unacceptably high survival rates among patients meeting the rule

Sensitivity analyses excluding the COVID-19 era

Findings were similar

Original publication

External validation of rules for termination of resuscitation in in-hospital cardiac arrest. Resuscitation. Published 16 February 2026. doi:10.1016/j.resuscitation.2026.111019

Summarised from the published abstract; every number is checked against it