An interventional study of Multifaceted intervention including 4 components in Cardiac Arrest (CA), sponsored by University Hospital, Grenoble. Not yet recruiting at 10 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-20.
Sponsored by University Hospital, Grenoble · Not applicable, Interventional, and Treatment
Each year, France's emergency response services-the SAMU (15) and the fire department (18)-handle 31 million and 19 million calls, respectively. The effectiveness of this system depends on the call centers' ability to obtain location information, prioritize responses, assess the severity of each call, and dispatch appropriate emergency resources.
Cardiac arrest (CA) affects 40,000 people in France each year who call on this service. The survival rate decreases by 7 to 10% for every minute that elapses between cardiac arrest and the start of cardiopulmonary resuscitation (CPR). Early CPR performed by bystanders is associated with a survival rate 2-3 times higher than CPR initiated only after emergency responders arrive on the scene. CPR assisted by SAMU-Centre 15 dispatchers (T-CPR) is a way to provide CPR to patients before emergency responders arrive on the scene and is recommended as early as possible to improve survival. According to the American Heart Association (AHA) guidelines, the timing of the initiation of the chain of survival is considered high quality if T-CPR is initiated within 90 seconds.
Studies show that recognizing a cardiac arrest (CA) over the phone is often difficult for several reasons, including communication challenges, the caller's stress, and the presence of abnormal breathing.
Emergency medical dispatchers (EMDs) receive very little training on communication strategies, particularly those needed to optimally manage stressed and sometimes difficult callers. Interventions to improve communication have proven effective among healthcare professionals. These methods included face-to-face training, blended learning programs, simulation-based teamwork exercises, and communication techniques adapted from aviation. Standardized scripting systems have been shown to improve the speed of decision-making and the dispatch of emergency response teams. These scripts depend on the quality of the information provided by the caller and the caller's ability to communicate effectively with the EMD.
The objective of this study will be to evaluate the effect of a communication training program for Centre-15 emergency medical dispatchers on calls for cardiac arrest.
926 studies on the registry are indexed under Heart Arrest; 226 are open to participants now.
This study's planned enrollment of 987 is above the median of 100 across 518 interventional studies indexed under Heart Arrest.
Browse Heart Arrest studies →University Hospital, Grenoble is the lead sponsor of 837 studies on the registry; 207 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Inclusion Criteria:
Non Inclusion Criteria:
Standard patient care in accordance with international recommendations. Local protocols for handling
A multifaceted initiative combining training for SAMU Emergency medical dispatchers on the use of a standardized protocol, training on barriers to the early recognition of cardiac arrest, communication training to optimize interactions with callers, and training on handling difficult calls.
Other: Multifaceted intervention including 4 components
a multifaceted initiative combining training for SAMU-Centre 15 emergency medical dispatchers (EMDs) on the use of a standardized script, training on barriers to the early recognition of cardiac arrest, communication training to optimize the relationship with the caller, and training on handling difficult calls
The effect of a multifaceted training intervention for SAMU-Centre 15 emergency medical technicians on the proportion of patients with out-of-hospital cardiac arrest of medical origin who receive early T-RCP within 90 seconds of the call being answered,
The p-roportion of out-of-hospital cardiac arrests of medical origin for which T-RCP guidance is initiated within 90 seconds of the EMD answering the call will be calculated by the time to initiation of T-CPR (defined as the time elapsed between the SAMU-Centre 15 operator answering the call and the first time the operator verbally provides cardiopulmonary resuscitation instructions to the caller) The criterion will be considered met when this time is 90 seconds or less.
Time frame: Baseline
Survival with good neurological outcome at 30 days
Favorable neurological outcome at 30 days : Neurological outcome will be assessed by a physician using: \- the Cerebral Performance Category (CPC) scale CPC 1 : Good Cerbral Performance -\> CPC 5: Brain Death
Time frame: 30 days
Survival with good neurological outcome at 30 days
Favorable neurological outcome at 30 days : Neurological outcome will be assessed by a physician using: \- the modified Rankin scale Scores: 0: No Symptoms -\> 5: Severe disability
Time frame: 30 days
Return of Spontaneous Circulation (ROSC)
ROSC: defined by a clinical assessment of vital signs, including the presence of a palpable pulse or blood pressure
Time frame: perioperatively/periprocedurally (during the CPR)
The proportion of patients admitted alive, discharged alive from the hospital, and alive at 30 days
Survival at hospital admission, discharge, and at 30 days
Time frame: Day 0, day of discharge of the hospital and 30 days
The initial heart rate recorded
The initial heart rhythm recorded by a physician based on an analysis of the first heart rhythm recorded after the arrival of emergency medical personnel
Time frame: Baseline
Proportion of recognized cardiac arrests
Percentage of calls for suspected cardiac arrest (CA) out of the total number of calls received for confirmed cardiac arrest (upon the arrival of emergency responders at the scene).
Time frame: Baseline
Proportion of CAs recognized in calls for recognizable CAs
Percentage of calls for CAs identified relative to the number of calls received for identifiable CAs
Time frame: Baseline
Proportion of CA calls receiving CPR guidance,
Percentage of calls receiving advice from T-RCP
Time frame: Baseline
Proportion of CA calls in which the caller agrees to begin CPR for all CAs
Percentage of calls for CAs where the caller agrees to begin CPR for all CAs
Time frame: Baseline
Time to recognize a cardiac arrest
Timeframe for the EMS to recognize the CA.
Time frame: Baseline
Time to obtain location information
Time between answering the call and obtaining precise location information
Time frame: Baseline
Percentage of cardiac arrests recognized within 60 seconds
Percentage of calls for CA recognized in less than 60 seconds, based on "recognizable" calls
Time frame: Baseline
Percentage of cardiac arrests recognized within 90 seconds
Percentage of calls for CA recognized in less than 90 seconds, based on "recognizable" calls
Time frame: Baseline
Time to begin CPR instructions
Timeframe for Initiating CPR instructions
Time frame: Baseline
Percentage of calls where CPR instructions begin within 150 seconds
The proportion of out-of-hospital cardiac arrests of medical origin for which T-RCP guidance is initiated within 150 seconds of the EMD answering the call is defined by the time to initiation of T-CPR
Time frame: Baseline
Quality of communication by the EMD
Call quality between the EMD and the caller: The evaluation will be conducted in accordance with the recommendations published by the Haute Autorité de Santé (HAS) \[85\], which include guidelines for conducting interviews with callers and communication protocols. An assessment of compliance with the decision-making algorithms will also be included. The evaluation will be carried out by experts during a blinded review of the trial period.
Time frame: Immediately after the procedure
Impact on service quality
Impact analysis on Center 15 by evaluating the QS30
Time frame: Day of inclusion
Plan to share: Yes — Study protocol will be submitted for publication. IPD will be shared with other researcher.
Supporting information: Study protocol, Statistical analysis plan, Informed consent form, Clinical study report
No publications or documents are linked to this record.
This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
University Hospital, Grenoble →