Survival Study After Out-of-hospital Cardiac Arrest

Not Applicable

• Conditions: Out-of-Hospital Cardiac Arrest
• Interventions: Other: Simultaneously dispatch of firefighters and/or police in case of OHCA

• Registration Number: NCT02184468
• Lead Sponsor: Karolinska Institutet

Brief Summary

The purpose of this study is to determine if dual dispatch of ambulance, fire fighters and/or police in out-of-hospital cardiac arrest (OHCA), can reduce the time to cardiopulmonary resuscitation (CPR) and defibrillation, thus increasing survival.

Detailed Description

Hypothesis If simultaneous dispatch of ambulance (EMS), firefighters and/or police is being initiated when an OHCA occurs, then the two latter units will be first at scene, before the ambulance crew, in ≥30% of the cases. We anticipate therefore that overall 30-days survival will increase on a national level from 9% to 12%.

Method During the period 110901 to 141231 all OHCA cases will be analyzed were the emergency medical communication centre (EMCC) has dispatched ambulance, firefighters and/or the police. Participating in the Saving More Lives in Sweden (SAMS) project are the following counties: Stockholm, Sodermanland, Jonkoping, Vastra Gotaland (VG Region), Halland, Dalarna, Jamtland, Kalmar and Uppsala. Data is collected by the units being dispatched and thereafter sent on line to a database managed by Registercentrum in Gothenburg (http://www.registercentrum.se/), administrators of the Swedish Cardiac Arrest Register.

Parameters obtained are:

* Time for dispatch of fire fighters and/or police (recorded digitally).

* Time for arrival to the patient.

* Verification if cardiac arrest or not.

* CPR performed by fire fighters or police before arrival of EMS.

* Automated External Defibrillator (AED) connected to the patient.

* If yes, was the first recorded rhythm shockable, i.e. ventricular fibrillation (VF) or pulseless ventricular tachycardia (VT).

* Time to defibrillation.

Survival data during from the Swedish Cardiac Arrest Register (SCAR) will be obtained during the same time period from nine comparable Swedish regions not participating in the SAMS study.

Study Timeline

• Study Start: 2011-09
• Study First Submitted: 2014-06-27
• Status Verified: 2014-07
• Study First Submitted QC: 2014-07-08
• Last Update Submitted: 2014-07-08
• Study First Posted: 2014-07-09
• Last Update Posted: 2014-07-09
• Primary Completion: 2014-12
• Study Completion: 2014-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 6000

Inclusion Criteria

• All cases where the dispatcher suspects cardiac arrest, i.e. unconscious person with abnormal or no breathing

Exclusion Criteria

• Children < 8 y
• Obviously deceased persons according to regulations in EMS protocols

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Dual dispatch	Simultaneously dispatch of firefighters and/or police in case of OHCA	Simultaneously dispatching of EMS, firefighters and/or police in OHCA

Primary Outcome Measures

Name	Time	Method
Survival	30-days after out-of-hospital cardiac arrest (OHCA)

Secondary Outcome Measures

Name	Time	Method
Time for dispatching of fire fighters and/or police	Up to 1 y after ending recruitement	Data are obtained digitally from the dispatch center.
Time for arrival to the patient	Up to 1 y after ending recruitement	Data are collected both digitally from the dispatch center and from protocols sent in on line by first responders.
Time for attaching the defibrillator to the patient	Up to 1 y after ending recruitement	Data are collected from protocols sent in on line by first responders.
Time to first defibrillation	Up to 1 y after ending recruitement	Data collected from the protocol sent in on line by first responders.

Trial Locations

Locations (1)

Center for Resuscitation Science, Sodersjukhuset; 🇸🇪 Stockholm, Sweden