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Effectiveness of a Communication Training Program in Improving the Handling of Calls for Suspected Cardiac Arrest at SAMU-Centre 15. (COM-ARM)

17. august 2026 opdateret af: University Hospital, Grenoble

Effectiveness of a Communication Training Program in Improving the Handling of Calls for Suspected Cardiac Arrest at SAMU-Centre 15. A Multicenter, Randomized Controlled Stepped-Wedge Implementation Trial

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.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

987

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

Studiesteder

      • Annecy, Frankrig
        • Ch Annecy-Genevois
        • Kontakt:
          • Thierry Roupioz
      • Bordeaux, Frankrig
        • CHU Bordeaux
        • Kontakt:
          • Xavier Combes
      • Chambéry, Frankrig
        • CH Métropole Savoie- Chambéry
        • Kontakt:
          • Heidi Mampe Armstrong
      • La Roche-sur-Yon, Frankrig
        • CH Vendée
        • Kontakt:
          • Vincent Diot
      • Lyon, Frankrig
        • Hospices Civils de Lyon - HEH
        • Kontakt:
          • Florent Femy
      • Nancy, Frankrig
        • CHRU NANCY
        • Kontakt:
          • Tahar Chouihed
      • Nantes, Frankrig
        • CHU Nantes
        • Kontakt:
          • Simon Ribes
      • Rennes, Frankrig
        • Chu Rennes
        • Kontakt:
          • Paul-Georges Reuter
      • Rouen, Frankrig
        • CHU Rouen
        • Kontakt:
          • Mélanie Roussel
      • Toulouse, Frankrig
        • CHU Toulouse
        • Kontakt:
          • Vincent Bounes

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Out-of-hospital cardiac arrest of presumed medical origin in an adult patient diagnosed during the phone call to the 15 emergency dispatch center

Non Inclusion Criteria:

  • Minor patients,
  • Calls initially handled by another emergency call center or a healthcare professional,
  • Calls regarding cardiac arrest for which CPR has already been initiated at the time the call is made to the 15 center,
  • Obvious or known pregnancy at the time of enrollment.
  • Persons protected under Articles L1121-6 and L1121-8 of the Public Health Code (CSP).

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Sekventiel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Ingen indgriben: Control
Standard patient care in accordance with international recommendations. Local protocols for handling
Eksperimentel: Experimental
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.
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

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
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,
Tidsramme: Baseline
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.
Baseline

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Survival with good neurological outcome at 30 days
Tidsramme: 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

30 days
Survival with good neurological outcome at 30 days
Tidsramme: 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

30 days
Return of Spontaneous Circulation (ROSC)
Tidsramme: perioperatively/periprocedurally (during the CPR)
ROSC: defined by a clinical assessment of vital signs, including the presence of a palpable pulse or blood pressure
perioperatively/periprocedurally (during the CPR)
The proportion of patients admitted alive, discharged alive from the hospital, and alive at 30 days
Tidsramme: Day 0, day of discharge of the hospital and 30 days
Survival at hospital admission, discharge, and at 30 days
Day 0, day of discharge of the hospital and 30 days
The initial heart rate recorded
Tidsramme: Baseline
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
Baseline
Proportion of recognized cardiac arrests
Tidsramme: Baseline
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).
Baseline
Proportion of CAs recognized in calls for recognizable CAs
Tidsramme: Baseline
Percentage of calls for CAs identified relative to the number of calls received for identifiable CAs
Baseline
Proportion of CA calls receiving CPR guidance,
Tidsramme: Baseline
Percentage of calls receiving advice from T-RCP
Baseline
Proportion of CA calls in which the caller agrees to begin CPR for all CAs
Tidsramme: Baseline
Percentage of calls for CAs where the caller agrees to begin CPR for all CAs
Baseline
Time to recognize a cardiac arrest
Tidsramme: Baseline
Timeframe for the EMS to recognize the CA.
Baseline
Time to obtain location information
Tidsramme: Baseline
Time between answering the call and obtaining precise location information
Baseline
Percentage of cardiac arrests recognized within 60 seconds
Tidsramme: Baseline
Percentage of calls for CA recognized in less than 60 seconds, based on "recognizable" calls
Baseline
Percentage of cardiac arrests recognized within 90 seconds
Tidsramme: Baseline
Percentage of calls for CA recognized in less than 90 seconds, based on "recognizable" calls
Baseline
Time to begin CPR instructions
Tidsramme: Baseline
Timeframe for Initiating CPR instructions
Baseline
Percentage of calls where CPR instructions begin within 150 seconds
Tidsramme: Baseline
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
Baseline
Quality of communication by the EMD
Tidsramme: Immediately after the procedure
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.
Immediately after the procedure
Impact on service quality
Tidsramme: Day of inclusion
Impact analysis on Center 15 by evaluating the QS30
Day of inclusion

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Studieleder: Monique Sorrentino, CHU Grenoble Alpes

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. august 2028

Studieafslutning (Anslået)

1. august 2028

Datoer for studieregistrering

Først indsendt

29. juni 2026

Først indsendt, der opfyldte QC-kriterier

17. august 2026

Først opslået (Faktiske)

20. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

20. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 38RC22.0037

Plan for individuelle deltagerdata (IPD)

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JA

IPD-planbeskrivelse

Study protocol will be submitted for publication. IPD will be shared with other researcher.

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

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