N/A N=274

Pre-arrival Instructions Effect on Bystander Cardiopulmonary Resuscitation (CPR).

Heart Arrest · Cardiac Arrest · Cardiopulmonary Arrest · Out of Hospital Cardiac Arrest · Sudden Cardiac Death

Bottom Line

View on ClinicalTrials.gov: NCT02007499 ↗

Enrolled (actual)

274

Serious AEs

—

Results posted

Apr 2026

Primary outcome: Primary: Incidence of Bystander Cardiopulmonary Resuscitation (CPR) in Out of Hospital Cardiac Arrest (OHCA) — 11; 19; 42; 25 participants — p=0.41

Study Design & Population

Study type: Observational
Phase: N/A
Interventions: Pre-Arrival Instructions (Other)
Age: Adult, Older Adult · 21+ yrs
Sex: All
Sponsor: Medical College of Wisconsin
Primary completion: Dec 2013

Outcome Measures

Outcome	Result	p-value
PRIMARY Incidence of Bystander Cardiopulmonary Resuscitation (CPR) in Out of Hospital Cardiac Arrest (OHCA)	11; 19; 42; 25	0.41
SECONDARY Survival to Hospital Discharge or to December, 31 2013 Whichever Comes First	11; 19; 42; 25	—

Summary

The investigators hypothesized that pre-arrival instructions would increase the likelihood of bystanders performing Cardiopulmonary Resuscitation (CPR).

Eligibility Criteria

Inclusion Criteria

Patients 21 years old or older
Presumed cardiac origin as indicated on the Milwaukee County Emergency Medical Services (MCEMS) report
Non-Emergency Medical Services (EMS) witnessed arrest

Exclusion Criteria

Patients younger than 21 years old
Patients who are "obviously dead" (decomposition, rigor mortis, decapitation, or other)
Trauma victims, including hanging and burns
Patients with cardiac arrests clearly of other non-cardiac origin including drug overdose, carbon monoxide poisoning, drowning, exsanguination, electrocution, asphyxia, hypoxia related to respiratory disease, cerebrovascular accident and documented terminal illness
Patients determined to be a do-not-resuscitate (DNR) upon arrival of Emergency Medical Services (EMS) providers
Cardiopulmonary Resuscitation (CPR) by someone other than Emergency Medical Services (EMS) who is a trained first responder or health care provider with a predetermined duty to provide care.

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Data sourced from ClinicalTrials.gov (NCT02007499). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.