Viewing Study NCT00004560



Ignite Creation Date: 2024-05-05 @ 10:00 AM
Last Modification Date: 2024-10-26 @ 9:04 AM
Study NCT ID: NCT00004560
Status: COMPLETED
Last Update Posted: 2016-04-14
First Post: 2000-02-09

Brief Title: Public Access Defibrillation PAD Community Trial
Sponsor: National Heart Lung and Blood Institute NHLBI
Organization: National Heart Lung and Blood Institute NHLBI

Study Overview

Official Title: None
Status: COMPLETED
Status Verified Date: 2005-11
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: To measure survival to hospital discharge of patients with out-of-hospital cardiac arrest in community units eg apartment or office buildings gated communities sports venues senior centers shopping malls served by trained non-medical responders using automated external defibrillators AEDs an approach called Public Access Defibrillation compared to units receiving the traditional optimum community standard of care ie rescuers trained to recognize a cardiac emergency call 911 and initiate CPR
Detailed Description: BACKGROUND

Sudden out-of-hospital cardiac arrest OOH-CA remains a significant cause of death in spite of recent declines in overall mortality from cardiovascular disease Existing methods of emergency resuscitation are inadequate due to time delays inherent in the transport of a trained responder with defibrillation capabilities to the side of the OOH-CA victim

Existing Emergency Medical Services EMS systems typically combine paramedic Emergency Medical Technician EMT services with some level of community involvement such as bystander cardiopulmonary resuscitation CPR training Some communities include automated external defibrillators AEDs at isolated sites or in mobile police or fire vehicles Such an approach typically varies in effectiveness with an incremental improvement in effectiveness seen in communities that organize and integrate services with the existing EMS system However optimal improvement in survival from sudden OOH-CA may require a program that utilizes volunteer non-medical responders who may not have a traditional duty to respond to an emergency who are successfully trained to use AEDs A comprehensive integrated community approach to treatment with AEDs would have community units served by these volunteer non-medical responders who can quickly identify and treat a patient with OOH-CA Such an approach is termed Public Access Defibrillation PAD

Some observational studies suggest support for the PAD approach These studies have targeted traditional public safety responders such as police and firefighters or other laypersons in leadership positions who are trained and regularly called upon to take command in an emergency eg airline flight attendants security officers in Las Vegas casinos Other studies both randomized and observational where trainees have been spouses or family members of at-risk patients suggest that not all laypersons can effectively utilize AEDs in the setting of OOH-CA even with extensive training This study differs from those conducted previously by focusing on an intermediate group namely volunteer non-medical responders eg merchants bank tellers building superintendents and co-workers This study will provide results that may help to develop informed public policy regarding the use of AEDs by volunteer non-medical persons

DESIGN NARRATIVE

This was a study of a comprehensive integrated community approach in which volunteer non-medical responders lay volunteers without a traditional responsibility to take charge in medical emergencies as their primary job description were trained to use automated external defibrillators AEDs This approach is called Public Access Defibrillation PAD The hypothesis investigated was that PAD would significantly increase survival in out-of-hospital cardiac arrest by reducing the time interval from collapse to defibrillation The specific aim of this randomized controlled trial was to measure survival to hospital discharge following out-of-hospital cardiac arrest in community units trained and equipped to provide public access defibrillation in addition to optimal standard care compared to community units trained to provide optimal standard care recognition of out-of-hospital cardiac arrest 911 access cardiopulmonary resuscitation Secondary aims included the comparison using Utstein criteria Annals of Emergency Medicine 199120861-74 neurological status quality of life cost and cost-effectiveness between the two groups

Participating research sites identified 1000 units eg public areas gated communities shopping malls airport terminals casinos business parks within their service area that anticipated at least 06 treatable out-of-hospital cardiac arrests within a 15 month period Each unit was randomized to serve as either an intervention or control group with comparative episode data collected for a 15 month period following a short preliminary data collection period approximately 2 months to evaluate the ability for the site to capture event data after training Within each site units were sub-randomized to a retraining strategy Performance at retraining was monitored and strategies modified if indicated

Volunteer non-medical responders eg office staff bank tellers merchants and neighborhood volunteers in both the intervention and control groups will be trained to provide the optimal standard of care a recognize out-of-hospital cardiac arrest b access 911 or its equivalent and c administer CPR Volunteers in the intervention group will also be taught to use an AED promptly while awaiting arrival of the first public safety emergency medical team The criteria for number and location of trained volunteers and devices will be a maximum 3-minute walk through to have the AED at the patients side

Out-of-hospital cardiac arrest victims in each of the two groups will be compared over the 15 month intervention period with respect to their a survival to hospital discharge primary outcome b neurological status c quality of life and d resource usecosts The incremental cost-effectiveness of volunteer non-medical responder defibrillation will be calculated

Study Oversight

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