Multifaceted Intervention for Increasing Performance of CPR by Laypersons in Out-of-hospital Cardiac Arrest (DISPATCH)

Grenoble Alpes University Hospital Center (CHU)

Status: Completed

Conditions: Cardiac Arrest

Treatments: Other: Multifaceted intervention including 3 components

Study type: Interventional

Funder types: Other

Identifiers

NCT03633370

DISPATCH

Details and patient eligibility

About

Cardiac arrest (CA) early recognition is essential in order to rapidly activate emergency services and for bystanders to begin cardiopulmonary resuscitation (CPR).

As soon as a call is received, EMS dispatchers should try to identify CA. This may be difficult, in a context of stress and distress of the person calling. Yet, it is vital for bystanders to initiate CPR. Survival can be multiplied by 2 to 4 if the bystanders initiate a CPR before the arrival of the emergency medical services.

This work aim to assess a multifaceted intervention combining 3 elements to improve the initial phone recognition of CA and raise the number of patients benefiting from CPR before EMS arrival on scene.

The first element is a dispatcher training to the early phone recognition of CA. This training will be based on the concept of active teaching, favouring the interactive work of learners in particular by listening to real dispatch recordings. It will be completed by continuing education with a distance teaching platform including the systematic listening of recorded CA calls.

The second element is based on the deployment of a software aiming to notify CA thanks to mobile phones. This system interfaced to a control software enables to request the participation of CPR-trained volunteers automatically. The volunteers have to be located in the patient's surroundings. The deployment of this mobile application will rely on first-aid volunteers, health personal and any trained volunteers willing to participate. A randomized control study in one city area proved the efficiency of a similar software to improve the proportion of CPR by bystanders.

The third element consists in a motivational feedback. A weekly overview of the management and the outcomes of patients who suffered CA will be broadcast to all the responders and volunteers in the mobile application.

Enrollment: 2,481 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• All adults with nontraumatic, out-of-hospital cardiac arrest diagnosed during the emergency medical service call
• Cardiac arrest located in urban area

Exclusion criteria

• Pregnant or breastfeeding women
• Patients under the law
• Patients deprived of liberty by court ruling or administrative ruling
• Traumatic cardiac arrest
• CA occurring under the eyes of a professional emergency services patrol on duty
• Cardiac arrest for which resuscitation seem unjustified (inevitable death, terminally ill irreversible condition, too long duration of cardiac arrest, non-resuscitation personal directive...)

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Sequential Assignment

Masking: Single Blind

---

2,481 participants in 2 patient groups

Control Group

No Intervention group

Description:

Usual management of patients according to international guidelines. Protocols of call acceptance, phone advice and sending of emergency services are not modified

Test Group

Other group

Description:

Multifaceted intervention 1. Training using distance learning for medical regulation assistants to recognise cardiac arrest on phone 2. Activation of the location-software application to send bystanders on cardiac arrest location before the arrival of emergency medical services (EMS) 3. Motivation feed-back Volunteers will received feed-back regarding CPR initiated before EMS arrival and survival

Treatment:

Other: Multifaceted intervention including 3 components